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Old 01-17-2014, 01:08 PM
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2000 gc 4.7

got this 2000 gc for 500.00 the owner said he was driving it when it made a knocking noise and then quit running.replaced cps but still no go.no power to injectors.This is my first jeep gc and it looks to be a challenge.my theory is that the pcm is bad and the engine started crossfiring thus making the knocking sound but after reading many threads on this subject I have a lot of things to check first before buying a refurb pcm as all the sensors relays and security items are in a series but I'm on it.
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Old 01-17-2014, 06:44 PM
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Congrats on the cheap find. I got mine also for $500 but I'm running condition

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Old 01-17-2014, 06:57 PM
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Re: 2000 gc 4.7

Welcome to the garage.
Check fuse 26 (15A) in the power distribution center under the hood, its feeding the injectors with 12V. Also check fuse 6 (30A) in the same center. Finally check fuse 12 (10A) on the junction block under the steering wheel area.
You could also swap the auto shutdown relay in the same center with the TCM relay for trouble shooting.
Did you also check for any fault codes using the key dance (or scanner)?
For key dance, switch ignition off/run three times and leave in run at the third time. the odometer will show DONE when all ok, or any fault code(s).
By the way, your jeep is a WJ, not a WK
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