Hello,
I apologize in advance for the lengthy post.
I have a 2004 Trailblazer 4.2L with 97k miles on it and I've been having some overheating issues recently.
I live in a hot environment my temp gauge is usually sitting below 210F but lately it's been going 2-3 ticks above 210F when AC is ON while idling but goes back around 210F once i get moving. Today i decided to go for a quick drive (very hot today around 105F) it was 30 min drive my temps were in the normal range so i parked over and left the engine and AC running for about 10 minutes when I got back i found my temp gauge right at the 4th mark once i started moving it started to go down rapidly to 1-2 ticks above 210F. Went home parked the truck and heard burping noise coming from the overflow and was filled to almost the top with coolant.
Here's a clip:
A list of the things done on my truck:
-Replaced radiator and cap
-Replaced fan clutch (non ACDelco part)
-Replaced ECT sensor (ACDelco part)
-Replaced thermostat (ACDelco part about 2 years ago)
-Transmission cooler installed before AC condenser)
Please note that i only have a P0171 code which I'm working on fixing but it's a PITA.
Your help is needed and greatly appreciated.
Thank you in advance.
I apologize in advance for the lengthy post.
I have a 2004 Trailblazer 4.2L with 97k miles on it and I've been having some overheating issues recently.
I live in a hot environment my temp gauge is usually sitting below 210F but lately it's been going 2-3 ticks above 210F when AC is ON while idling but goes back around 210F once i get moving. Today i decided to go for a quick drive (very hot today around 105F) it was 30 min drive my temps were in the normal range so i parked over and left the engine and AC running for about 10 minutes when I got back i found my temp gauge right at the 4th mark once i started moving it started to go down rapidly to 1-2 ticks above 210F. Went home parked the truck and heard burping noise coming from the overflow and was filled to almost the top with coolant.
Here's a clip:
A list of the things done on my truck:
-Replaced radiator and cap
-Replaced fan clutch (non ACDelco part)
-Replaced ECT sensor (ACDelco part)
-Replaced thermostat (ACDelco part about 2 years ago)
-Transmission cooler installed before AC condenser)
Please note that i only have a P0171 code which I'm working on fixing but it's a PITA.
Your help is needed and greatly appreciated.
Thank you in advance.