K1500

1998 GMC Truck

Tiny

screwdriver33

January, 4, 2011 AT 5:30 AM

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

FOUND 3503 RELATED QUESTIONS

4 Answers

Tiny

fixitmr

January, 4, 2011 AT 5:43 AM

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

Tiny

screwdriver33

January, 4, 2011 AT 5:56 AM

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.

Tiny

rasmataz

January, 4, 2011 AT 7:06 AM

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-

Tiny

screwdriver33

January, 4, 2011 AT 7:17 AM

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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