Question about 2008 Chevrolet Trailblazer
Check for a bad earth in the system . Possibly the earth strap on the motor or dirty battery terminals . IF the temp gauge will not work (bad earth ) and the ac stops working ( cabin air temp reaches setting) or the circuit has an earth problem switching off the ac. Check all wires for broken , not connected properly and check each earth point for clean and tight.
Posted on Apr 21, 2014
Testimonial: "I was also of the same opinion that's why I went to 02 different electricians and they have checked the wires in general. I will be grateful and appreciate if you tell me the exact wire or exact EARTH which need to be checked. Thanks"
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Posted on Jan 02, 2017
take the cap off of the radiator (whil engine is cold) start and run the vehicle. keep runnig 30mins after the vehicle is hot keeping notice of the rad fluid level.
keeping the cap off will prevent the pressure build up that woiuld keep the air in the system, keep adding water or antifreeze as the level goes down. this may take an hour or so.
also with the cap off, you will be able to see if your water pump is operating correctly. you will visibly be able to see movement in the rad when the pum is engaged.
Posted on May 26, 2009
Have you checked the antifreeze level lately? Low antifreeze will cause a temp sensor to give false readings. Does your heater work OK, as in does it blow hot air when heater is on? that is another symptom of low antifreeze.
As far as the check engine light coming off and on, I would bet it is the oxygen sensor that might need to be replaced.
Posted on Oct 20, 2009
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