First off I am a new member here but not new to jeeps. I’ve had Cj’s, TJ’s JK’s and now my wife has a JL.
This jeep will be for my son. It’s a 1998 base model TJ we picked up as a project. It’s solid but has been slightly neglected. It has 150K miles. It ran good enough to drive home.
My main issue was to determine the engine light issue other dash lights such as “ check gauges” which I determined was an oil pressure sensor. I replaced the oil pressure sensor, fixed that light, then the engine light gave me a code for the throttle body sensor. After diagnosing all other options such as loose or missing grounds ( The ground strap to the head was not connected ) I finally replaced the TPS sensor. The engine light went off, the engine finally idled, a bit high but it idled and didnt sputter. Then the engine light came back on. So I read the code and this time it was P1391 cam/crank sensor.
At this point I decided it was time to give this jeep a full tune up. I ordered new wires, plugs, cap, rotor, distributor pick up ( cam sensor ) and a crank sensor. I focused on the cam sensor first, changed rotor, cap, wires and plugs. All the original parts were in dyer need of replacement. Started it up, seemed to run better and idle better but I should also interject here and say once the P1391 code came on driveability was diminished due to the engine bogging down when I pressed the gas pedal. After changing the cam sensor and the ignition parts the idle smoothed pout however the bogging was still evident.
So I figured I would at least replace the cam sensor, possibly that was the main issue. So last night I squeezed my fat fingers up under the bell housing and changed the crank sensor. Removed the old one from the connector, added some dielectric grease and reconnected the new crank sensor. I should also state all the ignition parts and sensors are standard brand.
So this is the part that is most troublesome to me, now the jeep won’t run, at best it barely idles. When I start the engine it seems as if the timing is off . Runs like crap. Can’t give it any gas or it dies.
I am at a total loss here and am at the mercy of the TJ gurus.
This jeep just might kick my butt. Any help would be greatly appreciated.
I love these jeeps, I truly feel the TJ was the last true jeep before they breeded with a rouge Tahoe.
This jeep will be for my son. It’s a 1998 base model TJ we picked up as a project. It’s solid but has been slightly neglected. It has 150K miles. It ran good enough to drive home.
My main issue was to determine the engine light issue other dash lights such as “ check gauges” which I determined was an oil pressure sensor. I replaced the oil pressure sensor, fixed that light, then the engine light gave me a code for the throttle body sensor. After diagnosing all other options such as loose or missing grounds ( The ground strap to the head was not connected ) I finally replaced the TPS sensor. The engine light went off, the engine finally idled, a bit high but it idled and didnt sputter. Then the engine light came back on. So I read the code and this time it was P1391 cam/crank sensor.
At this point I decided it was time to give this jeep a full tune up. I ordered new wires, plugs, cap, rotor, distributor pick up ( cam sensor ) and a crank sensor. I focused on the cam sensor first, changed rotor, cap, wires and plugs. All the original parts were in dyer need of replacement. Started it up, seemed to run better and idle better but I should also interject here and say once the P1391 code came on driveability was diminished due to the engine bogging down when I pressed the gas pedal. After changing the cam sensor and the ignition parts the idle smoothed pout however the bogging was still evident.
So I figured I would at least replace the cam sensor, possibly that was the main issue. So last night I squeezed my fat fingers up under the bell housing and changed the crank sensor. Removed the old one from the connector, added some dielectric grease and reconnected the new crank sensor. I should also state all the ignition parts and sensors are standard brand.
So this is the part that is most troublesome to me, now the jeep won’t run, at best it barely idles. When I start the engine it seems as if the timing is off . Runs like crap. Can’t give it any gas or it dies.
I am at a total loss here and am at the mercy of the TJ gurus.
This jeep just might kick my butt. Any help would be greatly appreciated.
I love these jeeps, I truly feel the TJ was the last true jeep before they breeded with a rouge Tahoe.
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