4.0 Lost Power, thoughts? - JeepForum.com
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post #1 of 2 Old 08-22-2013, 05:55 PM Thread Starter
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1996 ZJ 
Join Date: Apr 2013
Location: Tucson
Posts: 176
4.0 Lost Power, thoughts?

It was 99 today and I drove about 20-30 miles in about 4 hours (delivery driver). I was just cruising at about 35mph when all of a sudden there was no throttle response. All the gauges were fine beforehand. Engine temp didn't go above 210-215 once. Now when I was trying to restart it the temp gauge was dead which is odd since my engine was obviously hot. My first thought is that my thermostat went out but I replaced that around 2 months ago. This happened about an hour ago so once the sun drops and my engine has cooled off I'll try starting it and brining it home.

Any thoughts/advice?


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Matte Black '96 ZJ 4.0
IRO 3.5" Benchmark Lift, Bilstein 5100's, 31x10.5x15 Westlake SL369 A/T's, Moog Super Trail Boss SS, KOR Rad Support, Chopped-up Front Bumper
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post #2 of 2 Old 08-22-2013, 07:40 PM
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1997 ZJ 
Join Date: Dec 2008
Posts: 9,000
wiggle the connectors on the PCM or just disconnect and reconnect them. sounds like bad solder joints or connectors.

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