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1990 Chevy Silverado Engine stalls and has low power

Tiny
JIMC03561
  • MEMBER
  • 1990 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 107,000 MILES
My 1990 Pick up has been to several shops and the cost is getting high. I have been told it is a fuel pump problem, its will start and idle rough, but initial start up you have to continue to hit accelerator to keep it running. When I remove air filter and check I can see fuel spraying into the TBI. Is there a service kit for the TBI, I have also heard about a fuel pressure regulator diaphram kit that can be replaced. It seems to be over fueling? Or could it just be as simple as a fuel pump. The pump is still original.
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Tuesday, May 20th, 2008 AT 7:42 AM

7 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Is it setting a check engine light? Have you checked for vccum leaks?
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Tuesday, May 20th, 2008 AT 8:06 AM
Tiny
JIMC03561
  • MEMBER
  • 3 POSTS
No check engine light does not come on. But you can see and smell the fuel.
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Tuesday, May 20th, 2008 AT 8:09 AM
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Did you check the distrubitior cap and rotor to see there condition?
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Tuesday, May 20th, 2008 AT 8:16 AM
Tiny
JIMC03561
  • MEMBER
  • 3 POSTS
Yes. Dist cap and rotor are new. It has been on a computer and no codes or anything are present. The dealer wanted to replace fuel pump next at 1200.00 and I can do that for alot less.
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Tuesday, May 20th, 2008 AT 8:19 AM
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Why do they wanna replace it, is it low on pressure, what is the pressure do you know?
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Tuesday, May 20th, 2008 AT 8:21 AM
Tiny
JIMC03561
  • MEMBER
  • 3 POSTS
That was just the next step they say.
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Tuesday, May 20th, 2008 AT 8:27 AM
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Is it low on pressure or volume?
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Tuesday, May 20th, 2008 AT 8:32 AM

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