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1995 Chevy Suburban Hesitation when starting from Stoplight

Tiny
GRLZTOY
  • MEMBER
  • 1995 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 168,000 MILES
We fixed spark plugs, wires, distributor cap and rotor.

We also replaced the Fuel Filter.

The Suburban STILL runs rough AFTER its warmed-up. And from a stoplight.(It has no power).

Do you think it might be a sensor or the fuel pump?
Could you please advise me on what to check next?

Thank you
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Saturday, April 5th, 2008 AT 10:56 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Are there any troublecodes? If this is TBI fuel system, does the spray pattern on both injectors, look the same? I can't tell anything about fuel pressure by looking at the spray pattern, but I can see a difference in the spray pattern, from one injector to the other? Yeah, I'd check fuel pressure, also.

Usually if the problem is temperature related, I check the CTS. Can you put a scanner on it?
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Sunday, April 6th, 2008 AT 12:43 PM

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