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I have a '00 XJ. Recently, my engine light has come on a few times after fill-up. I've read the other posts regarding this, but none included this: when I accelerate, as it's coming up in the RPMs, it "bucks" or misses a few times. I was wondering if having a leak in the fuel/emissions...

Wups. I meant digital multimeter.

Question. In checking ohms in a cam sensor and a crank sensor, what should the reading be if it's good? Some people say "infinite" - what does that look like on a digital meter? I have gotten readings of 0.00 and 7.5 on the cam sensors and 0.00 and 15.5 ish on the crank sensors. VERY CONFUSING!!!

That's exactly what I'm trying to do. I have already changed out the crank sensor. I changed out the cam sensor last night. It ran for 7 minutes, then stalled and wouldn't start again. The old sensor was showing 0.00 ohms cold and 15 ohms after stalling, so I assumed it was bad. I didn't...

Thanks, guys. Good stuff to know! I'll let you know what happens.

Maybe you are right. BUT, since i changed out my alternator, all my light and fan pulsing and transmission shifting has gone away.

Thanks. Where would i put the wrench to crank it?

Those links didn't show anything but a NAPA search page.

Thanks. Now, which cylinder is the #1 cylinder?

Chieftain, the alternator i installed has TWO and ONLY TWO terminals as did the one I took off. AND, there were no "extra" wires hanging idly by with nowhere to go.

Why would I pour water on the sensor?

Just to let you know, the voltage regulator IS in the alternator.

Does anyone know how to bring the engine up to TDC for the #1 cylinder? 2000 XJ, 4.0.

I do not know how to do that. And, my Jeep is a 2000 and doesn't have a distributor.

I read that article a few days ago. Thanks for posting it for me. It sounded hard for a very amateur mechanic. Do you think it is?

I have a powered multimeter. How would I perform this test? Can I do it with the engine not running but with the ignition on?

P1391 code. Either my Crankshaft Position Sensor or my Camshaft Position Sensor is sending an intermittent signal and causes it to run horrible (after it warms up) then not run at all. I just changed the Crank sensor and it fixed nothing. Very frustrating. I've read every post on NAXJA...

Where is the cam sensor located on a 2000 XJ 4.0?

I just took it out to see if it was still going to have the "bucking" issue and it just plain stopped running not far from my house. It won't even start, although it tries and tries. I tried tugging on wires as i did before, but it got no better. I left it and walked home. I'll go back in an...

As it turns out, I grabbed and moved every wire i could get my hands on and...IT STARTED!! I have have no idea why. However, now it's doing the bucking bronco things after 20 minutes of driving. Occasionally, it stalls. It's sending the infamous code P1391. I've read every post on NAXJA...