Question about 2003 Chevrolet TrailBlazer
Went L Drive it make funny noise in the highway
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Posted on Jan 02, 2017
SOURCE: Service 4WD
is the 4wd working still, if not are the lights coming on, on the switch for the 4wd? usually when the service 4wd light comes on, on a blazer it is usually one of two things, either the solenoid on the transfer case, or more times than not it is the switch on the dash itself, they were not a good design and would overheat and go bad, actually they go bad so often that auto zone stores carry then out on the shelf in he doorman help section, they are only 20 or 30 dollars, and they pop out and in with very little effort.
Posted on Nov 10, 2008
a little tip a friend gave me in unlocking the 4wd drive on ramps or hill and then put in neutral let roll back a foot put in park and then let off the 4wd
when in 4wd the hubs get a little heated cause they need greased so they stick into position making it hard to come out of 4wd this which i spoke of i got stuck in the senerio where i almost drove home in 4wd from 300 miles away but i called my friend he told me bought this and so i thought it could help you
your hubs just locked up on you your bearings are going to need to be packed again this is normal for this
Posted on Dec 06, 2008
PO172 means that an oxygen sensor in bank 1 detected a rich condition (too little oxygen in the exhaust). I would replace the thermostat first. The computer could be injecting too much fuel because it thinks it never gets to operating temperature. That may keep the light off.
Posted on Jan 28, 2009
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