Question about 2003 Chevrolet TrailBlazer

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Service light came on for 4wd trailblazer 2003 what should l do....

Went L Drive it make funny noise in the highway

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 21 Answers

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

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shaggyrat
  • 1224 Answers

SOURCE: 99 silverado 4wd went out... transfer case?

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

hub

Posted on Dec 06, 2008

ewashmidas
  • 362 Answers

SOURCE: P0172 and P0128 Error Code 2003 Trailblazer 4WD

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

emissionwiz
  • 76691 Answers

SOURCE: reset 2003 trailblazer service engine light

is this the check engine yellow light?

Posted on Sep 28, 2009

  • 1 Answer

SOURCE: Service 4wd

my 4WD shifts on it's own, and back out when i turn the engine on and off. I thinks it's a sensor but not sure.

Posted on Feb 23, 2010

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1 Answer

Service 4WD has come on twice, two winters in a row.


Its your control module for the 4 WD on the transfer case hanging. They go bad often. I would replace

Jan 11, 2015 | 2003 Chevrolet TrailBlazer

1 Answer

2003 Trailblazer, service 4 wheel drive light on, goes in and out of 4x4, what to do?


Service 4WD light will come for a number of reasons; TCCM is not communicating, TC actuator is not following TCCM command, Front splined disconnect actuator is not engaging.

Mar 03, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

Chevy trailblazer 4wd is not engaging 4hi blinking and service 4wd light is on


There are two actuators that activate the 4WD components, one is for the Transfer case modes and the other is for the front axle disconnect. Both of these actuators make a distinctive noise (motor noise) when activated. First thing to do is with engine off and ignition on, switch from 2HI to 4HI and listen for two distinctive noises. If you hear both, more than likely the front spline disconnect assembly (at the front axle) is defective.
In order to troubleshoot the 4WD system, you need to have an understanding of the whole thing, it is not a DIY item.

Feb 21, 2013 | 2002 Chevrolet TrailBlazer

1 Answer

4 wheel drive does not engage


actuator may need service[lubed ]connection or wiring loose or damaged

Feb 22, 2010 | 2003 Chevrolet TrailBlazer

2 Answers

I have a 2002 Trailblazer. The 4wheel drive service light is on what should I do? The 4wheel drive isn't working at all. Can I continue to drive in 2 wheel High until I get to dealer?


Your fine to drive it on 2wd till you make it to the dealer, but in the mean time check your 4wd fuse. The 4X4 encoder motor is know to blow fuses in cold days and it's a simple fix by replacing a fuse for 35 cent then having a dealer replace it for $65.00 service charge. Good luck and hope ti's a simple fuse that has gone bad, there common to go bad when 4wd is engaged during cold operation.

Dec 26, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

03 Trailblazer service 4 wheel light activates while turning


check the lubricant in the transaxle, if it is low it will cause the light to come on.

Sep 21, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

Noise while driving in 4wd on snowy highway...


i will be honest u probably just need to have the front end serviced. could be the hubs and or bearings....transfercase

Dec 22, 2008 | 1992 GMC Jimmy

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