I just bought a 2004 trailblazer near 20,000 miles on it. I was lately sitting in traffic and i look down and the tempature appraise as all the passageway in the red, i took it it to attain checked out and they can not figure out what is wrong near it, they said they had it sitting for 2 hours running and it did not overheat. it have not gotten to the red since then but it does run a touch hot. does anyone know? they checked the hoses and fan clutch and adjectives that
Answers: With 20K there shouldn't be any crucial issues. The TSB the guy was discussion about be for "higher than usual" temperature, but not for OVERHEAT (in the red). Deffinetly have the t-stat changed if it overheated. They are a misery on the TB, but it has to be done. It could enjoy been compromised.
The cooling system does NOT stipulation to be flushed, so dont waste your time/money on that.
The solid thing is to try to keep hold of track of all the factor that are occuring when it gets hot again. The agent will need that info. Its tough when they are not sufficiently expert to duplicate it.
It could have be something as simple as an air bubble surrounded by the cooling system. They can cause "hot" spots.
The bulletin the guy be talking roughly speaking is:
Some customers may comment on higher than typical engine coolant temperature measuring device readings when operating the vehicle within very large outside ambient temperatures, and surrounded by stop and go or slow moving traffic.
Cause
Reduced nouns flow across the radiator and preheated air from stopped or slow moving driving conditions from traffic congestion may result contained by normally high engine coolant operating temperatures as indicated by the warmth gauge.
Correction
Technicians are to reprogram the PCM next to an updated software calibration. This new service calibration be released with TIS satellite background update version 7.3 available July 7, 2004. As other, make sure your TECH 2(R) is updated next to the latest software revision.
This new calibration will bring the PCM to command small amounts of additional disciple engagement to control engine coolant temperatures and calculate readings closer to a customer perception of middle-of-the-road.
---------------
Like i said this is for people who say-so its running hotter than usual or hotter than their old vehicle. NOT for overheat. Overheat will not occur because of this bulletin.
Thanks! Goodluck
Their be a TSB bulletin on this vehicle about the electric enthusiast clutch check with your local salesperson to see if it applies to your vin# .....
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Answers: With 20K there shouldn't be any crucial issues. The TSB the guy was discussion about be for "higher than usual" temperature, but not for OVERHEAT (in the red). Deffinetly have the t-stat changed if it overheated. They are a misery on the TB, but it has to be done. It could enjoy been compromised.
The cooling system does NOT stipulation to be flushed, so dont waste your time/money on that.
The solid thing is to try to keep hold of track of all the factor that are occuring when it gets hot again. The agent will need that info. Its tough when they are not sufficiently expert to duplicate it.
It could have be something as simple as an air bubble surrounded by the cooling system. They can cause "hot" spots.
The bulletin the guy be talking roughly speaking is:
Some customers may comment on higher than typical engine coolant temperature measuring device readings when operating the vehicle within very large outside ambient temperatures, and surrounded by stop and go or slow moving traffic.
Cause
Reduced nouns flow across the radiator and preheated air from stopped or slow moving driving conditions from traffic congestion may result contained by normally high engine coolant operating temperatures as indicated by the warmth gauge.
Correction
Technicians are to reprogram the PCM next to an updated software calibration. This new service calibration be released with TIS satellite background update version 7.3 available July 7, 2004. As other, make sure your TECH 2(R) is updated next to the latest software revision.
This new calibration will bring the PCM to command small amounts of additional disciple engagement to control engine coolant temperatures and calculate readings closer to a customer perception of middle-of-the-road.
---------------
Like i said this is for people who say-so its running hotter than usual or hotter than their old vehicle. NOT for overheat. Overheat will not occur because of this bulletin.
Thanks! Goodluck
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Their be a TSB bulletin on this vehicle about the electric enthusiast clutch check with your local salesperson to see if it applies to your vin# .....
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