Engine Performance problem
2000 GMC Safari 6 cyl Two Wheel Drive Automatic 120000 miles
When it is hot outside about 85 and we run the AC the van will slowly stop accelerating, starts off anything past 3/4 throttle and 1/2 and then anything other then an idle. After it cools down it runs fine again. This never happens in the cooler months. I have seen it happen when very hot outside even with the AC off, 95+.
I have a OBD2 software program that show an Fuel systems status or Open Fault when this occurs
I have jut replaced both the O2 sensors and the fuel filter and this did not resolve the issue.
have the same problem?
Tuesday, August 4th, 2009 AT 12:17 PM