95 12valve help with the charging system

DEZLFREK

DEZLFREK

my licence plate says it
Joined
Dec 13, 2009
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ok so my moms 95 started dropping the tack and charging system on her way back from idaho hunting earlier this year and went use the truck a couple weeks ago. needless to say the tach wouldnt work and it wasnt charging. so they replaced the alternator, the crank/tack pickup, the ecm and grounds, and its still not charging, the tack still wont work and the ac wont either..
what could it be now? its a new ecm from chrysler, tried two different alternators and 3 different tach pickups... we are lost.*bdh*:nail:
 
Check the crank sensor harness where it goes around the front cover, I've seen a few with frayed wires there.
 
Adam, maybe try swapping the automatic shutdown relay. Have you checked for power and grounds at the pcm, 5 volts at the crank sensor? We've got a couple 94-95 PCM's at the shop if you want to try them. Let me know if you need any diagrams too.
 
I would put my money on if I remember right the third or fourth prong over on the top row on the computer on passenger side under the hood. or that wire having a short that goes to that prong it is a ground and if that doesn't get contact you tach and alt will not work or read on the dash.
 
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