|
'98 TJ Bucking Bronco
About a week ago, my '98 TJ (2.5L, 5-speed, 71K miles) began missing
at highway speed, bucking like a bronco. I chalked it up to a bad tank of gas, so I dumped in a bottle of HEET and a bottle of fuel injector cleaner. The problem continued, so I did the same thing with my next fill-up at a different station. No improvement. Since then, I've changed the plugs, installed new wires, distributor cap and rotor, have cleaned the throttle body, and have disconnected all electrical connections to the throttle body and fuel injectors and have sprayed electrical contact cleaner on them. I still have an intermittent miss at speed. Not as severe as before, but I still have the problem. What's next? Thanks in advance for any assistance! Mark '98 TJ '98 XJ |
Re: '98 TJ Bucking Bronco
Does that mean it is stalling or partially stalling repeatedly?
Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "M. E. Bye" <fxdyna@hotmail.com> wrote in message news:euicj0h6cq7v0moc7v7g5g614svbjn1e59@4ax.com... > About a week ago, my '98 TJ (2.5L, 5-speed, 71K miles) began missing > at highway speed, bucking like a bronco. I chalked it up to a bad > tank of gas, so I dumped in a bottle of HEET and a bottle of fuel > injector cleaner. The problem continued, so I did the same thing with > my next fill-up at a different station. No improvement. Since then, > I've changed the plugs, installed new wires, distributor cap and > rotor, have cleaned the throttle body, and have disconnected all > electrical connections to the throttle body and fuel injectors and > have sprayed electrical contact cleaner on them. I still have an > intermittent miss at speed. Not as severe as before, but I still have > the problem. What's next? > > Thanks in advance for any assistance! > > Mark > '98 TJ > '98 XJ |
Re: '98 TJ Bucking Bronco
Does that mean it is stalling or partially stalling repeatedly?
Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "M. E. Bye" <fxdyna@hotmail.com> wrote in message news:euicj0h6cq7v0moc7v7g5g614svbjn1e59@4ax.com... > About a week ago, my '98 TJ (2.5L, 5-speed, 71K miles) began missing > at highway speed, bucking like a bronco. I chalked it up to a bad > tank of gas, so I dumped in a bottle of HEET and a bottle of fuel > injector cleaner. The problem continued, so I did the same thing with > my next fill-up at a different station. No improvement. Since then, > I've changed the plugs, installed new wires, distributor cap and > rotor, have cleaned the throttle body, and have disconnected all > electrical connections to the throttle body and fuel injectors and > have sprayed electrical contact cleaner on them. I still have an > intermittent miss at speed. Not as severe as before, but I still have > the problem. What's next? > > Thanks in advance for any assistance! > > Mark > '98 TJ > '98 XJ |
Re: '98 TJ Bucking Bronco
Does that mean it is stalling or partially stalling repeatedly?
Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "M. E. Bye" <fxdyna@hotmail.com> wrote in message news:euicj0h6cq7v0moc7v7g5g614svbjn1e59@4ax.com... > About a week ago, my '98 TJ (2.5L, 5-speed, 71K miles) began missing > at highway speed, bucking like a bronco. I chalked it up to a bad > tank of gas, so I dumped in a bottle of HEET and a bottle of fuel > injector cleaner. The problem continued, so I did the same thing with > my next fill-up at a different station. No improvement. Since then, > I've changed the plugs, installed new wires, distributor cap and > rotor, have cleaned the throttle body, and have disconnected all > electrical connections to the throttle body and fuel injectors and > have sprayed electrical contact cleaner on them. I still have an > intermittent miss at speed. Not as severe as before, but I still have > the problem. What's next? > > Thanks in advance for any assistance! > > Mark > '98 TJ > '98 XJ |
Re: '98 TJ Bucking Bronco
On Wed, 1 Sep 2004 15:45:30 -0700, "Jerry Bransford" <jerrypb@cox.net>
wrote: >Does that mean it is stalling or partially stalling repeatedly? > >Jerry Jerry... It's not stalling out. It sounds like a misfire and at this point, I just don't know whether or not its a fuel/fuel delivery problem or a spark problem. It misses, jerks, bucks. I may drive 5 miles down the road and everything is fine. Then I'll get a miss... or a flurry of misses... and everything is fine for another few miles down the road. Funny thing is that at idle there seems to be absolutely no problem. At slower speeds (like around town) it may do it... but rarely. Mark |
Re: '98 TJ Bucking Bronco
On Wed, 1 Sep 2004 15:45:30 -0700, "Jerry Bransford" <jerrypb@cox.net>
wrote: >Does that mean it is stalling or partially stalling repeatedly? > >Jerry Jerry... It's not stalling out. It sounds like a misfire and at this point, I just don't know whether or not its a fuel/fuel delivery problem or a spark problem. It misses, jerks, bucks. I may drive 5 miles down the road and everything is fine. Then I'll get a miss... or a flurry of misses... and everything is fine for another few miles down the road. Funny thing is that at idle there seems to be absolutely no problem. At slower speeds (like around town) it may do it... but rarely. Mark |
Re: '98 TJ Bucking Bronco
On Wed, 1 Sep 2004 15:45:30 -0700, "Jerry Bransford" <jerrypb@cox.net>
wrote: >Does that mean it is stalling or partially stalling repeatedly? > >Jerry Jerry... It's not stalling out. It sounds like a misfire and at this point, I just don't know whether or not its a fuel/fuel delivery problem or a spark problem. It misses, jerks, bucks. I may drive 5 miles down the road and everything is fine. Then I'll get a miss... or a flurry of misses... and everything is fine for another few miles down the road. Funny thing is that at idle there seems to be absolutely no problem. At slower speeds (like around town) it may do it... but rarely. Mark |
Re: '98 TJ Bucking Bronco
Sounds like maybe the crankshaft position sensor or camshaft position
sensor. Any stored codes? Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "M. E. Bye" <fxdyna@hotmail.com> wrote in message news:ejkcj0hs2pm68qj0pflhbs5eh1o3o7fa48@4ax.com... > On Wed, 1 Sep 2004 15:45:30 -0700, "Jerry Bransford" <jerrypb@cox.net> > wrote: > >>Does that mean it is stalling or partially stalling repeatedly? >> >>Jerry > > > Jerry... > > It's not stalling out. It sounds like a misfire and at this point, I > just don't know whether or not its a fuel/fuel delivery problem or a > spark problem. It misses, jerks, bucks. I may drive 5 miles down the > road and everything is fine. Then I'll get a miss... or a flurry of > misses... and everything is fine for another few miles down the road. > Funny thing is that at idle there seems to be absolutely no problem. > At slower speeds (like around town) it may do it... but rarely. > > Mark |
Re: '98 TJ Bucking Bronco
Sounds like maybe the crankshaft position sensor or camshaft position
sensor. Any stored codes? Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "M. E. Bye" <fxdyna@hotmail.com> wrote in message news:ejkcj0hs2pm68qj0pflhbs5eh1o3o7fa48@4ax.com... > On Wed, 1 Sep 2004 15:45:30 -0700, "Jerry Bransford" <jerrypb@cox.net> > wrote: > >>Does that mean it is stalling or partially stalling repeatedly? >> >>Jerry > > > Jerry... > > It's not stalling out. It sounds like a misfire and at this point, I > just don't know whether or not its a fuel/fuel delivery problem or a > spark problem. It misses, jerks, bucks. I may drive 5 miles down the > road and everything is fine. Then I'll get a miss... or a flurry of > misses... and everything is fine for another few miles down the road. > Funny thing is that at idle there seems to be absolutely no problem. > At slower speeds (like around town) it may do it... but rarely. > > Mark |
Re: '98 TJ Bucking Bronco
Sounds like maybe the crankshaft position sensor or camshaft position
sensor. Any stored codes? Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "M. E. Bye" <fxdyna@hotmail.com> wrote in message news:ejkcj0hs2pm68qj0pflhbs5eh1o3o7fa48@4ax.com... > On Wed, 1 Sep 2004 15:45:30 -0700, "Jerry Bransford" <jerrypb@cox.net> > wrote: > >>Does that mean it is stalling or partially stalling repeatedly? >> >>Jerry > > > Jerry... > > It's not stalling out. It sounds like a misfire and at this point, I > just don't know whether or not its a fuel/fuel delivery problem or a > spark problem. It misses, jerks, bucks. I may drive 5 miles down the > road and everything is fine. Then I'll get a miss... or a flurry of > misses... and everything is fine for another few miles down the road. > Funny thing is that at idle there seems to be absolutely no problem. > At slower speeds (like around town) it may do it... but rarely. > > Mark |
| All times are GMT -4. The time now is 12:58 AM. |
© 2024 MH Sub I, LLC dba Internet Brands