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1995 4.0 Won't Start


 
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alf50990
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Joined: 20 Apr 2008
Location: Arizona

PostPosted: Sun Apr 20, 2008 3:15 pm    Post subject: 1995 4.0 Won't Start Reply with quote

Hi, I have 1995 with the 4.0 and an automatic trans. It won't start. It's getting very weak spark (1/16" inch jump). It started out as an intermitent problem but finally is dead. I have checked (ohmed) the coil and it checks okay. No codes have been generated. From reading past posts it sounds like it could be the CPS or the PCM. Is there a way to test the CPS? Whre is the CPS located? Thanks
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alf50990
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Joined: 20 Apr 2008
Location: Arizona

PostPosted: Sat Apr 26, 2008 4:55 pm    Post subject: Reply with quote

Disregard the request for help. I found the problem myself. I learned more about the electrical and sensors than I ever wanted to in the last week. The CPS (crank position sensor) went away, as in the output signal was only about 0.5V to 1.0V instead of the required 5.V.

Alf
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