2002 chevrolet trailblazer ltz 4wd

240

Asked by Sep 07, 2017 at 12:03 AM about the 2002 Chevrolet TrailBlazer LTZ 4WD

Question type: Maintenance & Repair

hi having a crazy ussue with my trailblazer
..everytime i leave my truck running in park
for more then ten minutes with the ac on
and when i finally take off driving it in about
1/4 of a mile my truck just dies it turns off
completely rpms go to zero  and struggles
to stay on i have to wait like 5 minutes
before turning it back on and when its back
in dies again and its really getting me
frustrated already.. i also change the throttle
body shift solenoids new tranny oil i did
these changes cause when the ac is on
truck just takes off to slow i could have the
pedal all the way down and it just takes off
alittle by alittle anyone know whatbcould be
wrong if theres answers out ther let mknow
please asap and thanks

4 Answers

120,685

Find a shop that does "live data" scanning, you may have some sensors that are sending incorrect information to the computer when they get hot causing the computer too either lean it out so much it dies or just shuts down, make sure you tell them what happens and when so they know when it stalls out, and won't be wasting a bunch of time trying to duplicate it in the shop and not on the open road. One good thing is it fires back up once it cools down.

240

thanks for that yea it fires back up the second time i try to turn it on.. i also checked the water in the radiator and there was tranny fluid in the cooling system hopefully that was the problem of my truck shutting off it was probly overheating cause of the tranny fluid in the water and i guess it has some sensor that shuts off the engine to protect it... one more thing avery time the ac is on my truck takes off to slow after light turns green at a stop light and it goes slow untill it starts catching speed any ideas

120,685

There again it sounds too lean, so it can't carry any additional engine load at low RPM's, I still think a live data scan is the way too go on this.

1 people found this helpful.
240

thanks will do that

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