1998 GMC Truck Repair Question
Topics covered: Fuel pressure, Coolant, Sensor.
Mileage: 167,000 miles.
Mileage: 167,000 miles.
Asked on January 4, 2011
K1500
1998 gmc truck hard to start when cold or sitting for hours
Answer
Replied on January 4, 2011
when was last tune up? how cold is it? are you using premium gas?
Replied on January 4, 2011
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.
Replied on January 4, 2011
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-
Replied on January 4, 2011
I just replaced coolant temp sensor. will check fuel pressure tomorro and try to clean iac valve. thanks for the help.