1993 Chevrolet Truck no fire.

CODY HERMIS

MEMBER
1993 CHEVROLET TRUCK
5.7L
V8
2WD
AUTOMATIC
230,000 MILES

I have a 93 Chevy truck with a 5.7L engine. It runs really good but will just shut off on u at anytime. One day it will crank up with two turns of the motor. And the next day it acts like the fuel pump is out. But fuel is coming out the TBI, I have replaced already the fuel pump, fuel filter, plugs, wires, cap + rotor, ignition coil, pick up coil, and module. Every time I replace something it runs great again and I get happy. But then same old thing happens. I ran the code and it's telling me it's a ESC. (Electric spark sensor ) I ordered it. Part# ESC104. Then I go to put it on and I can't find where it goes. I look it up and it's not where it shows to be. Guess some motors don't have that ESC. SO now I'm out of ideas.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

Have you checked the crank sensor? Was it the ignition control module that you replaced?

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Monday, January 19th, 2015 AT 6:20 AM

CODY HERMIS

MEMBER
2 POSTS

I replaced the box right behind the tbi that the short spark plug wire goes to. And I also replaced the ignition control module inside the distributor cap. And I replaced the pickup coil that you have to pull distributor out to get to.