1998 GMC K1500

  • Tiny
  • screwdriver33
  • 1998 GMC Truck
  • V8
  • 4WD
  • automatic
  • 167,000 miles

1998 gmc truck hard to start when cold or sitting for hours

Tuesday, January 4th, 2011 AT 5:30 AM

4 Answers

  • Tiny
  • fixitmr
  • Member

When was last tune up? How cold is it? Are you using premium gas?

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Tuesday, January 4th, 2011 AT 5:43 AM
  • Tiny
  • screwdriver33
  • Member

30,000 ago, 35 to 60deg f, using reg unleaded. I suspect fuel system or evap system. Have no driveability after start. Drive 20 miles one way.

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Tuesday, January 4th, 2011 AT 5:56 AM
  • Tiny
  • rasmataz
  • Member

You could be losing fuel pressure -check the actual fuel pressure with a gauge if its within specs-if okay test the coolant temperature sensor also clean out the idle air control valve and see what happens-

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Tuesday, January 4th, 2011 AT 7:06 AM
  • Tiny
  • screwdriver33
  • Member

I just replaced coolant temp sensor. Will check fuel pressure tomorro and try to clean iac valve. Thanks for the help.

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Tuesday, January 4th, 2011 AT 7:17 AM

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