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Hard start&will not stay running

Tiny
LAJER
  • MEMBER
  • 1994 GMC SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
I have a1994 gmc sub 1500 it hard to start and when it starts some time it runs for a few min. Other time have to keep foot on gas. Fuel psi is 13, I changed plugs, dis cap, rotor, coil, egr, egr sol, pressure reg, pcv, map sen, can. Purge sol, fuel pump relay, idle air contorl valve, iam lost as what could be wrong help please
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Friday, December 3rd, 2010 AT 10:44 PM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Do you have any fault codes? Clear and re test, not all codes will set a fault light, do this and report your findings.

Mark (mhpautos)
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Friday, December 3rd, 2010 AT 10:50 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pump and oil pressure sending unit this is the one that powers the fuel pump when the engine fires up
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Saturday, December 4th, 2010 AT 12:12 AM

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