I have a 94 GMC Safari with the W engine that never seems to warm up too operating temp during idle. My main concern is in the winter when prewarming it with my remote start. I have replaced the thermostat, O2 sensor, plugs ....the injector assembly that is on the inside of the intake (forget what its called) It starts and runs good gets the factory rated MPG actually 1 MPG better. My conclusion is that the idle mixture is set to too cold of a burn. The exhaust smells rich....not like raw gas more like an old 60's non computer car Can the eeprom be replaced to make a hotter idle burn. I have a eeprom burner and just need the file to copy it to a chip. Or is there program to read and edit the existing chip? If I turn on the front and rear heaters they remove enough heat that the t stat never opens during idle.
V6 Vortec idles cold
Jun 04, 2005
11 Replies
through the rad
reading but
than the engine
no change.
then idling if
through the rad
exact reading but
than the engine
stat no change.
when driving
then idling if
through the rad
exact reading but
than the engine
stat no change.
when driving
then idling if
(leaner) idle
rad feels cold....
goes through the rad
exact reading but
outside) and
than the engine
stat no change.
normal when driving
then idling if
(leaner) idle
the rad feels cold....
goes through the rad
exact reading but
outside) and
heat than the engine
195 stat no change.normal when driving
hard then idling if
(leaner) idle
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required