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Electrical Gremlins...need HELP!
Diagnos this one...:
1984 CJ7 Have turn signals in the rear of the Jeep only, and ONLY when the parking/headlights are OFF When the are ON, only the RIGHT turn signal works, the left turn signal does not work at all when the lights are on. Both front parking lights (double as turn signals) work perfect and stay on when the lights are on (but no turn signals). Stranges damn thing. |
Re: Electrical Gremlins...need HELP!
It sounds like the left turn signal lights are missing their ground, or have
a weak ground. Jerry -- -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ <ABanks5@columbus.rr.com> wrote in message news:Qvogb.23446$cK5.9149@fe1.columbus.rr.com... > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal does > not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay on > when the lights are on (but no turn signals). > > Stranges damn thing. > > |
Re: Electrical Gremlins...need HELP!
It sounds like the left turn signal lights are missing their ground, or have
a weak ground. Jerry -- -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ <ABanks5@columbus.rr.com> wrote in message news:Qvogb.23446$cK5.9149@fe1.columbus.rr.com... > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal does > not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay on > when the lights are on (but no turn signals). > > Stranges damn thing. > > |
Re: Electrical Gremlins...need HELP!
It sounds like the left turn signal lights are missing their ground, or have
a weak ground. Jerry -- -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ <ABanks5@columbus.rr.com> wrote in message news:Qvogb.23446$cK5.9149@fe1.columbus.rr.com... > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal does > not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay on > when the lights are on (but no turn signals). > > Stranges damn thing. > > |
Re: Electrical Gremlins...need HELP!
Why would they work with the lights off though. The fronts don't work at all
but the parking lights do and both filiments in the bulbs are perfect. The rears work all the time when the lights are off. It's just that left one that doesn't work when the lights are on. Strange. "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:cBogb.46714$gv5.4113@fed1read05... > It sounds like the left turn signal lights are missing their ground, or have > a weak ground. > > Jerry > > -- > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > <ABanks5@columbus.rr.com> wrote in message > news:Qvogb.23446$cK5.9149@fe1.columbus.rr.com... > > Diagnos this one...: > > 1984 CJ7 > > Have turn signals in the rear of the Jeep only, and ONLY when the > > parking/headlights are OFF > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > does > > not work at all when the lights are on. > > > > Both front parking lights (double as turn signals) work perfect and stay > on > > when the lights are on (but no turn signals). > > > > Stranges damn thing. > > > > > > |
Re: Electrical Gremlins...need HELP!
Why would they work with the lights off though. The fronts don't work at all
but the parking lights do and both filiments in the bulbs are perfect. The rears work all the time when the lights are off. It's just that left one that doesn't work when the lights are on. Strange. "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:cBogb.46714$gv5.4113@fed1read05... > It sounds like the left turn signal lights are missing their ground, or have > a weak ground. > > Jerry > > -- > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > <ABanks5@columbus.rr.com> wrote in message > news:Qvogb.23446$cK5.9149@fe1.columbus.rr.com... > > Diagnos this one...: > > 1984 CJ7 > > Have turn signals in the rear of the Jeep only, and ONLY when the > > parking/headlights are OFF > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > does > > not work at all when the lights are on. > > > > Both front parking lights (double as turn signals) work perfect and stay > on > > when the lights are on (but no turn signals). > > > > Stranges damn thing. > > > > > > |
Re: Electrical Gremlins...need HELP!
Why would they work with the lights off though. The fronts don't work at all
but the parking lights do and both filiments in the bulbs are perfect. The rears work all the time when the lights are off. It's just that left one that doesn't work when the lights are on. Strange. "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:cBogb.46714$gv5.4113@fed1read05... > It sounds like the left turn signal lights are missing their ground, or have > a weak ground. > > Jerry > > -- > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > <ABanks5@columbus.rr.com> wrote in message > news:Qvogb.23446$cK5.9149@fe1.columbus.rr.com... > > Diagnos this one...: > > 1984 CJ7 > > Have turn signals in the rear of the Jeep only, and ONLY when the > > parking/headlights are OFF > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > does > > not work at all when the lights are on. > > > > Both front parking lights (double as turn signals) work perfect and stay > on > > when the lights are on (but no turn signals). > > > > Stranges damn thing. > > > > > > |
Re: Electrical Gremlins...need HELP!
ABanks5@columbus.rr.com (ABanks5@columbus.rr.com) wrote on Monday 06 October
2003 08:18 pm: > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal > does not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay > on when the lights are on (but no turn signals). > > Stranges damn thing. Need some more info to start with: Do the front turn signals work at all? What is the voltage at the bulbs when the turn signals are on? Do you hear the turn signal relay clicking when the headlights are off? Do you hear the turn signal relay clicking when the headlights are on? Does the left brake light work when the headlights are on? -- Michael White "To protect people from the effects of folly is to fill the world with fools." -Herbert Spencer, 1891 |
Re: Electrical Gremlins...need HELP!
ABanks5@columbus.rr.com (ABanks5@columbus.rr.com) wrote on Monday 06 October
2003 08:18 pm: > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal > does not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay > on when the lights are on (but no turn signals). > > Stranges damn thing. Need some more info to start with: Do the front turn signals work at all? What is the voltage at the bulbs when the turn signals are on? Do you hear the turn signal relay clicking when the headlights are off? Do you hear the turn signal relay clicking when the headlights are on? Does the left brake light work when the headlights are on? -- Michael White "To protect people from the effects of folly is to fill the world with fools." -Herbert Spencer, 1891 |
Re: Electrical Gremlins...need HELP!
ABanks5@columbus.rr.com (ABanks5@columbus.rr.com) wrote on Monday 06 October
2003 08:18 pm: > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal > does not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay > on when the lights are on (but no turn signals). > > Stranges damn thing. Need some more info to start with: Do the front turn signals work at all? What is the voltage at the bulbs when the turn signals are on? Do you hear the turn signal relay clicking when the headlights are off? Do you hear the turn signal relay clicking when the headlights are on? Does the left brake light work when the headlights are on? -- Michael White "To protect people from the effects of folly is to fill the world with fools." -Herbert Spencer, 1891 |
Re: Electrical Gremlins...need HELP!
That sounds like a ground fault or a short.
I would be suspecting one of the front signals for no ground or the left rear shorted... The running lights use a wiring harness ground tag to the body. I believe it is on the right side on the rear and maybe the same on the front. It is at the end of the harness pieces anyway on both and is a loop on a stud. The signals ground through the fixtures or the screws/bolts that hold the fixtures on. If either lose their ground all kinds of strange things happen. I have seen a 'whole' pile of the dual filament 1157 bulbs come loose from the brass sockets and spin inside, crossing or shorting the filament wires and short out the works making things like you describe happen. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's ABanks5@columbus.rr.com wrote: > > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal does > not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay on > when the lights are on (but no turn signals). > > Stranges damn thing. |
Re: Electrical Gremlins...need HELP!
That sounds like a ground fault or a short.
I would be suspecting one of the front signals for no ground or the left rear shorted... The running lights use a wiring harness ground tag to the body. I believe it is on the right side on the rear and maybe the same on the front. It is at the end of the harness pieces anyway on both and is a loop on a stud. The signals ground through the fixtures or the screws/bolts that hold the fixtures on. If either lose their ground all kinds of strange things happen. I have seen a 'whole' pile of the dual filament 1157 bulbs come loose from the brass sockets and spin inside, crossing or shorting the filament wires and short out the works making things like you describe happen. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's ABanks5@columbus.rr.com wrote: > > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal does > not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay on > when the lights are on (but no turn signals). > > Stranges damn thing. |
Re: Electrical Gremlins...need HELP!
That sounds like a ground fault or a short.
I would be suspecting one of the front signals for no ground or the left rear shorted... The running lights use a wiring harness ground tag to the body. I believe it is on the right side on the rear and maybe the same on the front. It is at the end of the harness pieces anyway on both and is a loop on a stud. The signals ground through the fixtures or the screws/bolts that hold the fixtures on. If either lose their ground all kinds of strange things happen. I have seen a 'whole' pile of the dual filament 1157 bulbs come loose from the brass sockets and spin inside, crossing or shorting the filament wires and short out the works making things like you describe happen. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's ABanks5@columbus.rr.com wrote: > > Diagnos this one...: > 1984 CJ7 > Have turn signals in the rear of the Jeep only, and ONLY when the > parking/headlights are OFF > > When the are ON, only the RIGHT turn signal works, the left turn signal does > not work at all when the lights are on. > > Both front parking lights (double as turn signals) work perfect and stay on > when the lights are on (but no turn signals). > > Stranges damn thing. |
Re: Electrical Gremlins...need HELP!
I agree with Mike. Assuming you've checked to be sure the bulbs are good and
the sockets & contacts are clean, check the lighting harness grounds up front. Check your wiring diagram for locations. As I recall from rewiring my 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal screws, and lighting grounds located on the grill assy. There's also a ground for the light switch on the dash panel, but that may not do anything more than ground the panel lights, can't remember for sure. "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F823135.95E7A2BC@sympatico.ca... > That sounds like a ground fault or a short. > > I would be suspecting one of the front signals for no ground or the left > rear shorted... > > The running lights use a wiring harness ground tag to the body. I > believe it is on the right side on the rear and maybe the same on the > front. It is at the end of the harness pieces anyway on both and is a > loop on a stud. > > The signals ground through the fixtures or the screws/bolts that hold > the fixtures on. > > If either lose their ground all kinds of strange things happen. > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > from the brass sockets and spin inside, crossing or shorting the > filament wires and short out the works making things like you describe > happen. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > ABanks5@columbus.rr.com wrote: > > > > Diagnos this one...: > > 1984 CJ7 > > Have turn signals in the rear of the Jeep only, and ONLY when the > > parking/headlights are OFF > > > > When the are ON, only the RIGHT turn signal works, the left turn signal does > > not work at all when the lights are on. > > > > Both front parking lights (double as turn signals) work perfect and stay on > > when the lights are on (but no turn signals). > > > > Stranges damn thing. |
Re: Electrical Gremlins...need HELP!
I agree with Mike. Assuming you've checked to be sure the bulbs are good and
the sockets & contacts are clean, check the lighting harness grounds up front. Check your wiring diagram for locations. As I recall from rewiring my 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal screws, and lighting grounds located on the grill assy. There's also a ground for the light switch on the dash panel, but that may not do anything more than ground the panel lights, can't remember for sure. "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F823135.95E7A2BC@sympatico.ca... > That sounds like a ground fault or a short. > > I would be suspecting one of the front signals for no ground or the left > rear shorted... > > The running lights use a wiring harness ground tag to the body. I > believe it is on the right side on the rear and maybe the same on the > front. It is at the end of the harness pieces anyway on both and is a > loop on a stud. > > The signals ground through the fixtures or the screws/bolts that hold > the fixtures on. > > If either lose their ground all kinds of strange things happen. > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > from the brass sockets and spin inside, crossing or shorting the > filament wires and short out the works making things like you describe > happen. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > ABanks5@columbus.rr.com wrote: > > > > Diagnos this one...: > > 1984 CJ7 > > Have turn signals in the rear of the Jeep only, and ONLY when the > > parking/headlights are OFF > > > > When the are ON, only the RIGHT turn signal works, the left turn signal does > > not work at all when the lights are on. > > > > Both front parking lights (double as turn signals) work perfect and stay on > > when the lights are on (but no turn signals). > > > > Stranges damn thing. |
Re: Electrical Gremlins...need HELP!
I agree with Mike. Assuming you've checked to be sure the bulbs are good and
the sockets & contacts are clean, check the lighting harness grounds up front. Check your wiring diagram for locations. As I recall from rewiring my 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal screws, and lighting grounds located on the grill assy. There's also a ground for the light switch on the dash panel, but that may not do anything more than ground the panel lights, can't remember for sure. "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F823135.95E7A2BC@sympatico.ca... > That sounds like a ground fault or a short. > > I would be suspecting one of the front signals for no ground or the left > rear shorted... > > The running lights use a wiring harness ground tag to the body. I > believe it is on the right side on the rear and maybe the same on the > front. It is at the end of the harness pieces anyway on both and is a > loop on a stud. > > The signals ground through the fixtures or the screws/bolts that hold > the fixtures on. > > If either lose their ground all kinds of strange things happen. > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > from the brass sockets and spin inside, crossing or shorting the > filament wires and short out the works making things like you describe > happen. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > ABanks5@columbus.rr.com wrote: > > > > Diagnos this one...: > > 1984 CJ7 > > Have turn signals in the rear of the Jeep only, and ONLY when the > > parking/headlights are OFF > > > > When the are ON, only the RIGHT turn signal works, the left turn signal does > > not work at all when the lights are on. > > > > Both front parking lights (double as turn signals) work perfect and stay on > > when the lights are on (but no turn signals). > > > > Stranges damn thing. |
Re: Electrical Gremlins...need HELP!
Hmmm. The front ground tags are a pair of #10 screws and nuts, one on each side of the back of the grill, 1" below the center screw hole for the cold air induction flange (on the left, and the same space on the right). You have to pull the headlight bucket to see the actual connection. But they just serve the headlights, the parking/signal lights use the sheet metal for the ground path and have no seperate ground wire. As I recall, the taillight ground was attached by a sheet metal screw to the baffle at the back of each rear wheel well (new tub, no way for me to check this). But the baffle is just pop riveted to the support bracket, so it might be isolated from ground by rust. ABanks5 should try moving the ground wire to a better bit of body. There's also a ground strap that bridges the left motor mount rubber (engine to frame ground) and one from the head or block to a stud on the firewall behind the 6-cyl.'s valve cover (engine to body) that should be checked, just for giggles. The dashboard ground by the light switch only provides a return path for panel lights, there's no ground wire in the harness from the dash to the tail lights. If ABanks5 has a continuity tester ( a battery, a pilot light and two probes), he could open up the tail lights, pull the bulbs (to avoid bleeding to ground thrugh the filliment in an other light in the system) and check to see if there's continuity between the metal sleeve that holds the light bulb and a good bit of ground. If not, there's his problem. On or about Tue, 7 Oct 2003, Gerald G. McGeorge of gmcgeorge@frontier.net wrote: > I agree with Mike. Assuming you've checked to be sure the bulbs are good and > the sockets & contacts are clean, check the lighting harness grounds up > front. Check your wiring diagram for locations. As I recall from rewiring my > 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal > screws, and lighting grounds located on the grill assy. There's also a > ground for the light switch on the dash panel, but that may not do anything > more than ground the panel lights, can't remember for sure. > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F823135.95E7A2BC@sympatico.ca... > > That sounds like a ground fault or a short. > > > > I would be suspecting one of the front signals for no ground or the left > > rear shorted... > > > > The running lights use a wiring harness ground tag to the body. I > > believe it is on the right side on the rear and maybe the same on the > > front. It is at the end of the harness pieces anyway on both and is a > > loop on a stud. > > > > The signals ground through the fixtures or the screws/bolts that hold > > the fixtures on. > > > > If either lose their ground all kinds of strange things happen. > > > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > > from the brass sockets and spin inside, crossing or shorting the > > filament wires and short out the works making things like you describe > > happen. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > > > ABanks5@columbus.rr.com wrote: > > > > > > Diagnos this one...: > > > 1984 CJ7 > > > Have turn signals in the rear of the Jeep only, and ONLY when the > > > parking/headlights are OFF > > > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > does > > > not work at all when the lights are on. > > > > > > Both front parking lights (double as turn signals) work perfect and stay > on > > > when the lights are on (but no turn signals). > > > > > > Stranges damn thing. > > > -- "doing whatever it took to capture world marketing shares, even as far as having multiple satellites circling the globe to ensure complete coverage and maximum profit potential." Tealady spills the beans on AFU's new business plan. |
Re: Electrical Gremlins...need HELP!
Hmmm. The front ground tags are a pair of #10 screws and nuts, one on each side of the back of the grill, 1" below the center screw hole for the cold air induction flange (on the left, and the same space on the right). You have to pull the headlight bucket to see the actual connection. But they just serve the headlights, the parking/signal lights use the sheet metal for the ground path and have no seperate ground wire. As I recall, the taillight ground was attached by a sheet metal screw to the baffle at the back of each rear wheel well (new tub, no way for me to check this). But the baffle is just pop riveted to the support bracket, so it might be isolated from ground by rust. ABanks5 should try moving the ground wire to a better bit of body. There's also a ground strap that bridges the left motor mount rubber (engine to frame ground) and one from the head or block to a stud on the firewall behind the 6-cyl.'s valve cover (engine to body) that should be checked, just for giggles. The dashboard ground by the light switch only provides a return path for panel lights, there's no ground wire in the harness from the dash to the tail lights. If ABanks5 has a continuity tester ( a battery, a pilot light and two probes), he could open up the tail lights, pull the bulbs (to avoid bleeding to ground thrugh the filliment in an other light in the system) and check to see if there's continuity between the metal sleeve that holds the light bulb and a good bit of ground. If not, there's his problem. On or about Tue, 7 Oct 2003, Gerald G. McGeorge of gmcgeorge@frontier.net wrote: > I agree with Mike. Assuming you've checked to be sure the bulbs are good and > the sockets & contacts are clean, check the lighting harness grounds up > front. Check your wiring diagram for locations. As I recall from rewiring my > 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal > screws, and lighting grounds located on the grill assy. There's also a > ground for the light switch on the dash panel, but that may not do anything > more than ground the panel lights, can't remember for sure. > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F823135.95E7A2BC@sympatico.ca... > > That sounds like a ground fault or a short. > > > > I would be suspecting one of the front signals for no ground or the left > > rear shorted... > > > > The running lights use a wiring harness ground tag to the body. I > > believe it is on the right side on the rear and maybe the same on the > > front. It is at the end of the harness pieces anyway on both and is a > > loop on a stud. > > > > The signals ground through the fixtures or the screws/bolts that hold > > the fixtures on. > > > > If either lose their ground all kinds of strange things happen. > > > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > > from the brass sockets and spin inside, crossing or shorting the > > filament wires and short out the works making things like you describe > > happen. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > > > ABanks5@columbus.rr.com wrote: > > > > > > Diagnos this one...: > > > 1984 CJ7 > > > Have turn signals in the rear of the Jeep only, and ONLY when the > > > parking/headlights are OFF > > > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > does > > > not work at all when the lights are on. > > > > > > Both front parking lights (double as turn signals) work perfect and stay > on > > > when the lights are on (but no turn signals). > > > > > > Stranges damn thing. > > > -- "doing whatever it took to capture world marketing shares, even as far as having multiple satellites circling the globe to ensure complete coverage and maximum profit potential." Tealady spills the beans on AFU's new business plan. |
Re: Electrical Gremlins...need HELP!
Hmmm. The front ground tags are a pair of #10 screws and nuts, one on each side of the back of the grill, 1" below the center screw hole for the cold air induction flange (on the left, and the same space on the right). You have to pull the headlight bucket to see the actual connection. But they just serve the headlights, the parking/signal lights use the sheet metal for the ground path and have no seperate ground wire. As I recall, the taillight ground was attached by a sheet metal screw to the baffle at the back of each rear wheel well (new tub, no way for me to check this). But the baffle is just pop riveted to the support bracket, so it might be isolated from ground by rust. ABanks5 should try moving the ground wire to a better bit of body. There's also a ground strap that bridges the left motor mount rubber (engine to frame ground) and one from the head or block to a stud on the firewall behind the 6-cyl.'s valve cover (engine to body) that should be checked, just for giggles. The dashboard ground by the light switch only provides a return path for panel lights, there's no ground wire in the harness from the dash to the tail lights. If ABanks5 has a continuity tester ( a battery, a pilot light and two probes), he could open up the tail lights, pull the bulbs (to avoid bleeding to ground thrugh the filliment in an other light in the system) and check to see if there's continuity between the metal sleeve that holds the light bulb and a good bit of ground. If not, there's his problem. On or about Tue, 7 Oct 2003, Gerald G. McGeorge of gmcgeorge@frontier.net wrote: > I agree with Mike. Assuming you've checked to be sure the bulbs are good and > the sockets & contacts are clean, check the lighting harness grounds up > front. Check your wiring diagram for locations. As I recall from rewiring my > 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal > screws, and lighting grounds located on the grill assy. There's also a > ground for the light switch on the dash panel, but that may not do anything > more than ground the panel lights, can't remember for sure. > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F823135.95E7A2BC@sympatico.ca... > > That sounds like a ground fault or a short. > > > > I would be suspecting one of the front signals for no ground or the left > > rear shorted... > > > > The running lights use a wiring harness ground tag to the body. I > > believe it is on the right side on the rear and maybe the same on the > > front. It is at the end of the harness pieces anyway on both and is a > > loop on a stud. > > > > The signals ground through the fixtures or the screws/bolts that hold > > the fixtures on. > > > > If either lose their ground all kinds of strange things happen. > > > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > > from the brass sockets and spin inside, crossing or shorting the > > filament wires and short out the works making things like you describe > > happen. > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > > > ABanks5@columbus.rr.com wrote: > > > > > > Diagnos this one...: > > > 1984 CJ7 > > > Have turn signals in the rear of the Jeep only, and ONLY when the > > > parking/headlights are OFF > > > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > does > > > not work at all when the lights are on. > > > > > > Both front parking lights (double as turn signals) work perfect and stay > on > > > when the lights are on (but no turn signals). > > > > > > Stranges damn thing. > > > -- "doing whatever it took to capture world marketing shares, even as far as having multiple satellites circling the globe to ensure complete coverage and maximum profit potential." Tealady spills the beans on AFU's new business plan. |
Re: Electrical Gremlins...need HELP!
Good advice. When I first hauled my CJ5 out of the barn it had been in for
years only the headlights worked. Every marker light socket was corroded and the front turn & rear tail light assys had at one time filled with water, so they were corroded beyond belief. A bit of work with some scotch brite cleaned them all up and they worked for a time, finally to be replaced with all new light assys. Every time I fixed one light, another started to work, so check 'em all out. "Lee Ayrton" <layrton@ntplx.net> wrote in message news:Pine.GSO.4.43.0310070954050.21038-100000@sea.ntplx.net... > > Hmmm. The front ground tags are a pair of #10 screws and nuts, one on > each side of the back of the grill, 1" below the center screw hole for the > cold air induction flange (on the left, and the same space on the right). > You have to pull the headlight bucket to see the actual connection. But > they just serve the headlights, the parking/signal lights use the sheet > metal for the ground path and have no seperate ground wire. > > As I recall, the taillight ground was attached by a sheet metal screw to > the baffle at the back of each rear wheel well (new tub, no way for me to > check this). But the baffle is just pop riveted to the support bracket, > so it might be isolated from ground by rust. ABanks5 should try moving > the ground wire to a better bit of body. > > There's also a ground strap that bridges the left motor mount rubber > (engine to frame ground) and one from the head or block to a stud on the > firewall behind the 6-cyl.'s valve cover (engine to body) that should be > checked, just for giggles. > > The dashboard ground by the light switch only provides a return path for > panel lights, there's no ground wire in the harness from the dash to the > tail lights. > > If ABanks5 has a continuity tester ( a battery, a pilot light and two > probes), he could open up the tail lights, pull the bulbs (to avoid > bleeding to ground thrugh the filliment in an other light in the system) > and check to see if there's continuity between the metal sleeve that holds > the light bulb and a good bit of ground. If not, there's his problem. > > > > On or about Tue, 7 Oct 2003, Gerald G. McGeorge of gmcgeorge@frontier.net wrote: > > > I agree with Mike. Assuming you've checked to be sure the bulbs are good and > > the sockets & contacts are clean, check the lighting harness grounds up > > front. Check your wiring diagram for locations. As I recall from rewiring my > > 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal > > screws, and lighting grounds located on the grill assy. There's also a > > ground for the light switch on the dash panel, but that may not do anything > > more than ground the panel lights, can't remember for sure. > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message > > news:3F823135.95E7A2BC@sympatico.ca... > > > That sounds like a ground fault or a short. > > > > > > I would be suspecting one of the front signals for no ground or the left > > > rear shorted... > > > > > > The running lights use a wiring harness ground tag to the body. I > > > believe it is on the right side on the rear and maybe the same on the > > > front. It is at the end of the harness pieces anyway on both and is a > > > loop on a stud. > > > > > > The signals ground through the fixtures or the screws/bolts that hold > > > the fixtures on. > > > > > > If either lose their ground all kinds of strange things happen. > > > > > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > > > from the brass sockets and spin inside, crossing or shorting the > > > filament wires and short out the works making things like you describe > > > happen. > > > > > > Mike > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > > 88 Cherokee 235 BFG AT's > > > > > > ABanks5@columbus.rr.com wrote: > > > > > > > > Diagnos this one...: > > > > 1984 CJ7 > > > > Have turn signals in the rear of the Jeep only, and ONLY when the > > > > parking/headlights are OFF > > > > > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > > does > > > > not work at all when the lights are on. > > > > > > > > Both front parking lights (double as turn signals) work perfect and stay > > on > > > > when the lights are on (but no turn signals). > > > > > > > > Stranges damn thing. > > > > > > > > -- > "doing whatever it took to capture world marketing shares, even as far > as having multiple satellites circling the globe to ensure complete > coverage and maximum profit potential." > > Tealady spills the beans on AFU's new business plan. > > > |
Re: Electrical Gremlins...need HELP!
Good advice. When I first hauled my CJ5 out of the barn it had been in for
years only the headlights worked. Every marker light socket was corroded and the front turn & rear tail light assys had at one time filled with water, so they were corroded beyond belief. A bit of work with some scotch brite cleaned them all up and they worked for a time, finally to be replaced with all new light assys. Every time I fixed one light, another started to work, so check 'em all out. "Lee Ayrton" <layrton@ntplx.net> wrote in message news:Pine.GSO.4.43.0310070954050.21038-100000@sea.ntplx.net... > > Hmmm. The front ground tags are a pair of #10 screws and nuts, one on > each side of the back of the grill, 1" below the center screw hole for the > cold air induction flange (on the left, and the same space on the right). > You have to pull the headlight bucket to see the actual connection. But > they just serve the headlights, the parking/signal lights use the sheet > metal for the ground path and have no seperate ground wire. > > As I recall, the taillight ground was attached by a sheet metal screw to > the baffle at the back of each rear wheel well (new tub, no way for me to > check this). But the baffle is just pop riveted to the support bracket, > so it might be isolated from ground by rust. ABanks5 should try moving > the ground wire to a better bit of body. > > There's also a ground strap that bridges the left motor mount rubber > (engine to frame ground) and one from the head or block to a stud on the > firewall behind the 6-cyl.'s valve cover (engine to body) that should be > checked, just for giggles. > > The dashboard ground by the light switch only provides a return path for > panel lights, there's no ground wire in the harness from the dash to the > tail lights. > > If ABanks5 has a continuity tester ( a battery, a pilot light and two > probes), he could open up the tail lights, pull the bulbs (to avoid > bleeding to ground thrugh the filliment in an other light in the system) > and check to see if there's continuity between the metal sleeve that holds > the light bulb and a good bit of ground. If not, there's his problem. > > > > On or about Tue, 7 Oct 2003, Gerald G. McGeorge of gmcgeorge@frontier.net wrote: > > > I agree with Mike. Assuming you've checked to be sure the bulbs are good and > > the sockets & contacts are clean, check the lighting harness grounds up > > front. Check your wiring diagram for locations. As I recall from rewiring my > > 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal > > screws, and lighting grounds located on the grill assy. There's also a > > ground for the light switch on the dash panel, but that may not do anything > > more than ground the panel lights, can't remember for sure. > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message > > news:3F823135.95E7A2BC@sympatico.ca... > > > That sounds like a ground fault or a short. > > > > > > I would be suspecting one of the front signals for no ground or the left > > > rear shorted... > > > > > > The running lights use a wiring harness ground tag to the body. I > > > believe it is on the right side on the rear and maybe the same on the > > > front. It is at the end of the harness pieces anyway on both and is a > > > loop on a stud. > > > > > > The signals ground through the fixtures or the screws/bolts that hold > > > the fixtures on. > > > > > > If either lose their ground all kinds of strange things happen. > > > > > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > > > from the brass sockets and spin inside, crossing or shorting the > > > filament wires and short out the works making things like you describe > > > happen. > > > > > > Mike > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > > 88 Cherokee 235 BFG AT's > > > > > > ABanks5@columbus.rr.com wrote: > > > > > > > > Diagnos this one...: > > > > 1984 CJ7 > > > > Have turn signals in the rear of the Jeep only, and ONLY when the > > > > parking/headlights are OFF > > > > > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > > does > > > > not work at all when the lights are on. > > > > > > > > Both front parking lights (double as turn signals) work perfect and stay > > on > > > > when the lights are on (but no turn signals). > > > > > > > > Stranges damn thing. > > > > > > > > -- > "doing whatever it took to capture world marketing shares, even as far > as having multiple satellites circling the globe to ensure complete > coverage and maximum profit potential." > > Tealady spills the beans on AFU's new business plan. > > > |
Re: Electrical Gremlins...need HELP!
Good advice. When I first hauled my CJ5 out of the barn it had been in for
years only the headlights worked. Every marker light socket was corroded and the front turn & rear tail light assys had at one time filled with water, so they were corroded beyond belief. A bit of work with some scotch brite cleaned them all up and they worked for a time, finally to be replaced with all new light assys. Every time I fixed one light, another started to work, so check 'em all out. "Lee Ayrton" <layrton@ntplx.net> wrote in message news:Pine.GSO.4.43.0310070954050.21038-100000@sea.ntplx.net... > > Hmmm. The front ground tags are a pair of #10 screws and nuts, one on > each side of the back of the grill, 1" below the center screw hole for the > cold air induction flange (on the left, and the same space on the right). > You have to pull the headlight bucket to see the actual connection. But > they just serve the headlights, the parking/signal lights use the sheet > metal for the ground path and have no seperate ground wire. > > As I recall, the taillight ground was attached by a sheet metal screw to > the baffle at the back of each rear wheel well (new tub, no way for me to > check this). But the baffle is just pop riveted to the support bracket, > so it might be isolated from ground by rust. ABanks5 should try moving > the ground wire to a better bit of body. > > There's also a ground strap that bridges the left motor mount rubber > (engine to frame ground) and one from the head or block to a stud on the > firewall behind the 6-cyl.'s valve cover (engine to body) that should be > checked, just for giggles. > > The dashboard ground by the light switch only provides a return path for > panel lights, there's no ground wire in the harness from the dash to the > tail lights. > > If ABanks5 has a continuity tester ( a battery, a pilot light and two > probes), he could open up the tail lights, pull the bulbs (to avoid > bleeding to ground thrugh the filliment in an other light in the system) > and check to see if there's continuity between the metal sleeve that holds > the light bulb and a good bit of ground. If not, there's his problem. > > > > On or about Tue, 7 Oct 2003, Gerald G. McGeorge of gmcgeorge@frontier.net wrote: > > > I agree with Mike. Assuming you've checked to be sure the bulbs are good and > > the sockets & contacts are clean, check the lighting harness grounds up > > front. Check your wiring diagram for locations. As I recall from rewiring my > > 76 CJ5 it had grounds in the rear fenderwells attached with sheet metal > > screws, and lighting grounds located on the grill assy. There's also a > > ground for the light switch on the dash panel, but that may not do anything > > more than ground the panel lights, can't remember for sure. > > > > "Mike Romain" <romainm@sympatico.ca> wrote in message > > news:3F823135.95E7A2BC@sympatico.ca... > > > That sounds like a ground fault or a short. > > > > > > I would be suspecting one of the front signals for no ground or the left > > > rear shorted... > > > > > > The running lights use a wiring harness ground tag to the body. I > > > believe it is on the right side on the rear and maybe the same on the > > > front. It is at the end of the harness pieces anyway on both and is a > > > loop on a stud. > > > > > > The signals ground through the fixtures or the screws/bolts that hold > > > the fixtures on. > > > > > > If either lose their ground all kinds of strange things happen. > > > > > > I have seen a 'whole' pile of the dual filament 1157 bulbs come loose > > > from the brass sockets and spin inside, crossing or shorting the > > > filament wires and short out the works making things like you describe > > > happen. > > > > > > Mike > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > > 88 Cherokee 235 BFG AT's > > > > > > ABanks5@columbus.rr.com wrote: > > > > > > > > Diagnos this one...: > > > > 1984 CJ7 > > > > Have turn signals in the rear of the Jeep only, and ONLY when the > > > > parking/headlights are OFF > > > > > > > > When the are ON, only the RIGHT turn signal works, the left turn signal > > does > > > > not work at all when the lights are on. > > > > > > > > Both front parking lights (double as turn signals) work perfect and stay > > on > > > > when the lights are on (but no turn signals). > > > > > > > > Stranges damn thing. > > > > > > > > -- > "doing whatever it took to capture world marketing shares, even as far > as having multiple satellites circling the globe to ensure complete > coverage and maximum profit potential." > > Tealady spills the beans on AFU's new business plan. > > > |
Re: Electrical Gremlins...need HELP!
Make sure you have good grounds first of all.
On Tue, 07 Oct 2003 01:18:40 GMT, <ABanks5@columbus.rr.com> wrote: >Diagnos this one...: >1984 CJ7 >Have turn signals in the rear of the Jeep only, and ONLY when the >parking/headlights are OFF > >When the are ON, only the RIGHT turn signal works, the left turn signal does >not work at all when the lights are on. > >Both front parking lights (double as turn signals) work perfect and stay on >when the lights are on (but no turn signals). > >Stranges damn thing. > |
Re: Electrical Gremlins...need HELP!
Make sure you have good grounds first of all.
On Tue, 07 Oct 2003 01:18:40 GMT, <ABanks5@columbus.rr.com> wrote: >Diagnos this one...: >1984 CJ7 >Have turn signals in the rear of the Jeep only, and ONLY when the >parking/headlights are OFF > >When the are ON, only the RIGHT turn signal works, the left turn signal does >not work at all when the lights are on. > >Both front parking lights (double as turn signals) work perfect and stay on >when the lights are on (but no turn signals). > >Stranges damn thing. > |
Re: Electrical Gremlins...need HELP!
Make sure you have good grounds first of all.
On Tue, 07 Oct 2003 01:18:40 GMT, <ABanks5@columbus.rr.com> wrote: >Diagnos this one...: >1984 CJ7 >Have turn signals in the rear of the Jeep only, and ONLY when the >parking/headlights are OFF > >When the are ON, only the RIGHT turn signal works, the left turn signal does >not work at all when the lights are on. > >Both front parking lights (double as turn signals) work perfect and stay on >when the lights are on (but no turn signals). > >Stranges damn thing. > |
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