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1993 Chevrolet S-10 flooding problem

Tiny
MCDOWELL03211
  • MEMBER
  • 1993 CHEVROLET S-10
  • 4.3L
  • 6 CYL
  • 325,000 MILES
Constant flooding already replaced major components and still wants to surge when you apply gas going down the hill. Already replaced map flow air sensor, both temperature gauge sensors, plugs, wires, egr valve, o rings in the injectors.
Thursday, November 28th, 2013 AT 9:25 AM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Did a diagnosis lead to all those parts or did you just try random things? One fairly common cause of too much fuel is a leaking fuel pressure regulator. Pull the vacuum hose off and see if it's wet inside. If it is, fuel is leaking into the intake manifold through it.
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Thursday, November 28th, 2013 AT 1:23 PM

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