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1998 GMC k1500

Tiny
SCREWDRIVER33
  • MEMBER
  • 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 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
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
  • 3 POSTS
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
  • MECHANIC
  • 75,992 POSTS
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
  • 3 POSTS
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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