Re: '97 Grand fuel pump relay killed fuel pump?
Thanks Bill,
Already replaced the crank position sensor when previously chasing P0351 codes. Did not seem to have any impact, but I hear it often accounts for strange problems. "L.W. (Bill) ------ III" <LWBill------@------.net> wrote in message news:46944946$0$16366$88260bb3@free.teranews.com.. . > I can tell you my fuel pump took out it's relay, it wouldn't stop > running the pump with the ignition off. It ran another couple of months > with > a new relay and replaced culprit clogged filter. As a test it should run > for > a couple of seconds every time you turn on the ignition key on then shut > off, if the engine is not started. But this really sounds like the > Crankshaft Position Sensor: > http://jeep.off-road.com/jeep/articl....jsp?id=257990 That's > why > I asked you to test for the sound of fuel to confirm it's really not > running. > God Bless America, Bill O|||||||O > mailto:-------------------- http://www.----------.com/ > |
Re: '97 Grand fuel pump relay killed fuel pump?
Thanks Bill,
Already replaced the crank position sensor when previously chasing P0351 codes. Did not seem to have any impact, but I hear it often accounts for strange problems. "L.W. (Bill) ------ III" <LWBill------@------.net> wrote in message news:46944946$0$16366$88260bb3@free.teranews.com.. . > I can tell you my fuel pump took out it's relay, it wouldn't stop > running the pump with the ignition off. It ran another couple of months > with > a new relay and replaced culprit clogged filter. As a test it should run > for > a couple of seconds every time you turn on the ignition key on then shut > off, if the engine is not started. But this really sounds like the > Crankshaft Position Sensor: > http://jeep.off-road.com/jeep/articl....jsp?id=257990 That's > why > I asked you to test for the sound of fuel to confirm it's really not > running. > God Bless America, Bill O|||||||O > mailto:-------------------- http://www.----------.com/ > |
Re: '97 Grand fuel pump relay killed fuel pump?
Thanks Bill,
Already replaced the crank position sensor when previously chasing P0351 codes. Did not seem to have any impact, but I hear it often accounts for strange problems. "L.W. (Bill) ------ III" <LWBill------@------.net> wrote in message news:46944946$0$16366$88260bb3@free.teranews.com.. . > I can tell you my fuel pump took out it's relay, it wouldn't stop > running the pump with the ignition off. It ran another couple of months > with > a new relay and replaced culprit clogged filter. As a test it should run > for > a couple of seconds every time you turn on the ignition key on then shut > off, if the engine is not started. But this really sounds like the > Crankshaft Position Sensor: > http://jeep.off-road.com/jeep/articl....jsp?id=257990 That's > why > I asked you to test for the sound of fuel to confirm it's really not > running. > God Bless America, Bill O|||||||O > mailto:-------------------- http://www.----------.com/ > |
Re: '97 Grand fuel pump relay killed fuel pump?
Mike,
No codes on OBD II. I get codes 12 and 55 on the odometer and have for months. I was told previously that code 12 always shows and is not an indicator of a problem, even though it does not disappear after many start cycles. Was I told wrong? I had cleaned and reseated both the negative to body ground and the negative to engine ground before the latest problem. I have not run the specific test you mention. I will when I next get access to the car. Thanks, Joe M "Mike Romain" <romainm@sympatico.ca> wrote in message news:4694d725$0$10412$9a6e19ea@unlimited.newshosti ng.com... > > You are still describing a code 12 issue I think..... > > I would be making 'really' sure the body of the vehicle had full power. > > To do this, I take a multimeter and read the volts at the battery posts > with the engine running and the headlights and heater fan and wipers on. I > then move the negative meter probe to the body with the positive still on > the battery positive and compare the voltages. > > If the voltages are different, your body ground path is bad. > > Good luck! > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: '97 Grand fuel pump relay killed fuel pump?
Mike,
No codes on OBD II. I get codes 12 and 55 on the odometer and have for months. I was told previously that code 12 always shows and is not an indicator of a problem, even though it does not disappear after many start cycles. Was I told wrong? I had cleaned and reseated both the negative to body ground and the negative to engine ground before the latest problem. I have not run the specific test you mention. I will when I next get access to the car. Thanks, Joe M "Mike Romain" <romainm@sympatico.ca> wrote in message news:4694d725$0$10412$9a6e19ea@unlimited.newshosti ng.com... > > You are still describing a code 12 issue I think..... > > I would be making 'really' sure the body of the vehicle had full power. > > To do this, I take a multimeter and read the volts at the battery posts > with the engine running and the headlights and heater fan and wipers on. I > then move the negative meter probe to the body with the positive still on > the battery positive and compare the voltages. > > If the voltages are different, your body ground path is bad. > > Good luck! > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: '97 Grand fuel pump relay killed fuel pump?
Mike,
No codes on OBD II. I get codes 12 and 55 on the odometer and have for months. I was told previously that code 12 always shows and is not an indicator of a problem, even though it does not disappear after many start cycles. Was I told wrong? I had cleaned and reseated both the negative to body ground and the negative to engine ground before the latest problem. I have not run the specific test you mention. I will when I next get access to the car. Thanks, Joe M "Mike Romain" <romainm@sympatico.ca> wrote in message news:4694d725$0$10412$9a6e19ea@unlimited.newshosti ng.com... > > You are still describing a code 12 issue I think..... > > I would be making 'really' sure the body of the vehicle had full power. > > To do this, I take a multimeter and read the volts at the battery posts > with the engine running and the headlights and heater fan and wipers on. I > then move the negative meter probe to the body with the positive still on > the battery positive and compare the voltages. > > If the voltages are different, your body ground path is bad. > > Good luck! > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: '97 Grand fuel pump relay killed fuel pump?
Mike,
No codes on OBD II. I get codes 12 and 55 on the odometer and have for months. I was told previously that code 12 always shows and is not an indicator of a problem, even though it does not disappear after many start cycles. Was I told wrong? I had cleaned and reseated both the negative to body ground and the negative to engine ground before the latest problem. I have not run the specific test you mention. I will when I next get access to the car. Thanks, Joe M "Mike Romain" <romainm@sympatico.ca> wrote in message news:4694d725$0$10412$9a6e19ea@unlimited.newshosti ng.com... > > You are still describing a code 12 issue I think..... > > I would be making 'really' sure the body of the vehicle had full power. > > To do this, I take a multimeter and read the volts at the battery posts > with the engine running and the headlights and heater fan and wipers on. I > then move the negative meter probe to the body with the positive still on > the battery positive and compare the voltages. > > If the voltages are different, your body ground path is bad. > > Good luck! > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: '97 Grand fuel pump relay killed fuel pump?
Sometimes the cables can rot inside the clamps which is why the meter
test is a good one just to make sure. It wouldn't hurt to meter the engine block with the volt test also. Code 55 should be the only one. Mike Joe_M wrote: > Mike, > > No codes on OBD II. I get codes 12 and 55 on the odometer and have for > months. I was told previously that code 12 always shows and is not an > indicator of a problem, even though it does not disappear after many start > cycles. Was I told wrong? > > I had cleaned and reseated both the negative to body ground and the negative > to engine ground before the latest problem. I have not run the specific test > you mention. I will when I next get access to the car. > > Thanks, > > Joe M > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:4694d725$0$10412$9a6e19ea@unlimited.newshosti ng.com... >> You are still describing a code 12 issue I think..... >> >> I would be making 'really' sure the body of the vehicle had full power. >> >> To do this, I take a multimeter and read the volts at the battery posts >> with the engine running and the headlights and heater fan and wipers on. I >> then move the negative meter probe to the body with the positive still on >> the battery positive and compare the voltages. >> >> If the voltages are different, your body ground path is bad. >> >> Good luck! >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's - Gone to the rust pile... >> Canadian Off Road Trips Photos: Non members can still view! >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 >> (More Off Road album links at bottom of the view page) > > |
Re: '97 Grand fuel pump relay killed fuel pump?
Sometimes the cables can rot inside the clamps which is why the meter
test is a good one just to make sure. It wouldn't hurt to meter the engine block with the volt test also. Code 55 should be the only one. Mike Joe_M wrote: > Mike, > > No codes on OBD II. I get codes 12 and 55 on the odometer and have for > months. I was told previously that code 12 always shows and is not an > indicator of a problem, even though it does not disappear after many start > cycles. Was I told wrong? > > I had cleaned and reseated both the negative to body ground and the negative > to engine ground before the latest problem. I have not run the specific test > you mention. I will when I next get access to the car. > > Thanks, > > Joe M > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:4694d725$0$10412$9a6e19ea@unlimited.newshosti ng.com... >> You are still describing a code 12 issue I think..... >> >> I would be making 'really' sure the body of the vehicle had full power. >> >> To do this, I take a multimeter and read the volts at the battery posts >> with the engine running and the headlights and heater fan and wipers on. I >> then move the negative meter probe to the body with the positive still on >> the battery positive and compare the voltages. >> >> If the voltages are different, your body ground path is bad. >> >> Good luck! >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's - Gone to the rust pile... >> Canadian Off Road Trips Photos: Non members can still view! >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 >> (More Off Road album links at bottom of the view page) > > |
Re: '97 Grand fuel pump relay killed fuel pump?
Sometimes the cables can rot inside the clamps which is why the meter
test is a good one just to make sure. It wouldn't hurt to meter the engine block with the volt test also. Code 55 should be the only one. Mike Joe_M wrote: > Mike, > > No codes on OBD II. I get codes 12 and 55 on the odometer and have for > months. I was told previously that code 12 always shows and is not an > indicator of a problem, even though it does not disappear after many start > cycles. Was I told wrong? > > I had cleaned and reseated both the negative to body ground and the negative > to engine ground before the latest problem. I have not run the specific test > you mention. I will when I next get access to the car. > > Thanks, > > Joe M > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:4694d725$0$10412$9a6e19ea@unlimited.newshosti ng.com... >> You are still describing a code 12 issue I think..... >> >> I would be making 'really' sure the body of the vehicle had full power. >> >> To do this, I take a multimeter and read the volts at the battery posts >> with the engine running and the headlights and heater fan and wipers on. I >> then move the negative meter probe to the body with the positive still on >> the battery positive and compare the voltages. >> >> If the voltages are different, your body ground path is bad. >> >> Good luck! >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's - Gone to the rust pile... >> Canadian Off Road Trips Photos: Non members can still view! >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 >> (More Off Road album links at bottom of the view page) > > |
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