Mechanics

CHEVROLET TRUCK FUSE PROBLEM

1998 Chevrolet Truck • 170,000 miles

Truck died going down the road. Would not restart only attempted to start now after getting it home it only cranks. After sometime looking at it I have confirmed that we have spark, compression, 60psi of fuel pressure.I have changed out the ECM, crank sensor, cam sensor. Used a multimeter and have no power to the fuel injectors ( have not tested with a Noid light yet). So I would say that this is fuel problem but the head scratcher is that is we dump gas or spary starting fluid down the intake I still get nothing not so much as even a pop bang or back fire. Which first led me to believe it could be a timing chain( this was before I found the power issue at the injectors) but the distributor turns when you crank it over so it cant be the timing.
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Jaspers_87
January 12, 2013.



Do a compression test to see what the figure is. That will tell you if you have timing chain issue

put the old pcm back in the truck. Unless you got a new one and had it flashed to your truck

power to the injectors is controlled by a fuse. Check them with a test light. The pcm only controls the ground side

Roy

ASEMaster6371
Jan 12, 2013.
Compression checked out good. Old PCM is back in truck. Any more info on which fuse in perticular I should be looking for? IGN fuse or ecm fuse?

Tiny
Jaspers_87
Jan 12, 2013.
Check them all.

Roy

ASEMaster6371
Jan 13, 2013.