98 Blazer 4X4 4.3L, Hard start or no start, starts with primer fluid, . Stumbles at full throttle

Tiny
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  • 1998 CHEVROLET BLAZER
  • 135,000 MILES

No start or hard to start, will start after spraying fluid into the intake but stumbles at full throttle. I changed the E.C.M. And fuel filter. I checked fuel pressure. It was 60 lbs. The fuel filter was 85% restricted. Still have no start after sitting a few minutes or hard starting while spraying fue into the intake.

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Tuesday, September 3rd, 2013 AT 2:39 PM

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Tiny
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  • 49,625 POSTS

Check fuel pressure but let it sit for 5 minutes and see if it drops or not it sshouldn't drop over 10 psi but 62 psi is better

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Tuesday, September 3rd, 2013 AT 3:17 PM

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