2nd Gen Non-Engine/Transmission Help!! electronics crashed in my '96

[Lightfoot]

I was driving home from a short trip to the store and the truck went sluggish on me. Has an automatic, seemed to be stuck in third. Had to manually dial in 1st to get away from the stop light. Then I noticed the GEN warning light, CHECK ENG. light, WATER IN FUEL light, TRANS. TEMP light, and WAIT TO START light were all on. The tach. and speedo were out. Overdrive is out. Also the one of the AIR COND. lines is iced up even though the unit is not turned on. The other circuits are normal. The truck temp guage is normal on the road. Can't find any blown fuses, other than an ABS pump fuse. Can anyone help me on this one?



'96 4X4, Quad Cab, rebuilt AT, Pac Brake, 4" exhaust,high flo muffler,Power Loc rear diff. ,454 gears, Off Road Tech front and rear bumpers, 12. 000 lb Warn Winch : : : : : :

 

[vssman]

Sounds like a bad engine speed sensor. Get a cup of your favorite beverage and so a search...

 

[EBottema]

You might have a bad speed sensor or maybe a malfunctioning computer unit... .

 

[tp0d]

Well, could be the above problems, but I would place my money on the pcm before the crank sensor due to all the lights being on...



First thing to try, and its almost free... Get some good electronic contact cleaner rated for use with plastic/rubber, and take apart every connector you can find and hose it down. This includes the 3 large connectors on the PCM behind the airbox. Then take off your battery terminals, and wire brush em real good. Check your ground to chassis/engine leads also.



If that doesnt help any, ebay might have a cheap deal on a PCM to try. .



good luck



-j