Engine Performance problem
1999 GMC Safari 6 cyl Two Wheel Drive Automatic 160000 miles
Sputters and seems like it's barely getting enough fuel when starting. Can't drive off right away. After about 10 seconds running, rpm smooths out and is fine and runs with no problems. Can be made to start much better, but not perfect by turning key on and off a few times without starting to cycle the fuel pump. If engine has been running and you turn it off and start shortly after it is also fine. Needs to be off an hour or two to have the problem. Fuel pressure is 53 lbs running, pops up to 60 when fuel pump is on and engine is not running, or when the engine is shut off. Showing codes P0118 Engine Coolant Temperature Sensor Circuit High Voltage and P0452 Fuel Tank Pressure Sensor Circuit Low Voltage.
Saturday, June 7th, 2008 AT 4:53 PM