Chevy won't start

Tiny
JUSTIN_B_U2
  • MEMBER
  • 1996 CHEVROLET TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 186,000 MILES
I have a 96 Chevy 3/4 ton with the 5.7 Ltr in it. I turn the key and it turns over but doesn't even attempt to Fire. I checked the fuel and I'm getting 55 psi so I eliminated that. It seems to happen more when it rains. Could it be my distributor or does that motor have a coil that could be malfunctioning?
Tuesday, May 31st, 2011 AT 4:31 PM

4 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If you have the spider fuel system, key on engine off, 55 psi may be too low. Should be 60--66 psi, key on engine off. After the vehicle starts, it will run on less pressure. You could try a little starter fluid in the intake. There are safety issues using starter fluid. Safety is your responsibility.

Do you have spark at the plugs? Do you have injector pulse?
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Tuesday, May 31st, 2011 AT 5:11 PM
Tiny
JUSTIN_B_U2
  • MEMBER
  • 2 POSTS
I don't have any spark that I can tell. I tried starting fluid and still no fire. The spark plugs wires and rotor cap are 4 months old. The engine ran fine when I parked. The next day it would fire. Turned over just fine but thats all it did.
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Tuesday, May 31st, 2011 AT 5:47 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How do you know, you don't have any spark? Did you visually check for spark at the plugs? You can take a spark plug wire loose, use a known good spark plug or spark tester in the boot. Ground metal part of tester to metal part of engine, watch for spark engine cranking. Let us know about spark.

I think your fuel pressure is too low.
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Tuesday, May 31st, 2011 AT 6:10 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If no spark, check for primary voltage at the coil, pink wire, goes hot when you turn on the key. Voltage comes from ecm 1 fuse, underhood fuse block. Your distributor cap--rotor--coil wire all ok?
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Tuesday, May 31st, 2011 AT 6:19 PM

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