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4x4 issues, 4 LO works, but 4 HI doesn't. - TrailBlazer Chevrolet Cars & Trucks

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I had the same problem on my 95 jimmy. I could get it into 4 lo but 4 hi would not work. I replaced all the vacuum hoses that went to the transfer case and it fixed my problem.

Posted on Jan 10, 2009

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I have a 2003 Envoy and 4 lo works but 4 hi and awd doesn't?!?!?


It's a good possibility that some of the clutches in the transfer case are shot. When was the last time the transfer case fluid was changed? It needs to be changed every 50K miles using GM AutoTrak II fluid.

Dec 30, 2012 | 2003 GMC Envoy

1 Answer

Stuck in 4 wheel lo, how do i get it back to 2 wheel hi ?


On these issue, there are few solved help links for troubleshooting the issue easily.-------

Click the link below: ---

No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

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4X4 Truck makes roaring noise in the front end?

http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html

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Car will not go into 4WD high or 4WD low?


http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html

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No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

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4 wheel drive system will not disengage?

http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html

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4WD light is flashing and beeping? NO 4WD high?

http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html

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2002 Jeep Wrangler: 4WD Idiot Light is ON?

http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html

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Traction control switch will not engage on 4WD High or Low

http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html

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4WD light flashing and 4WD will engage after few minutes

http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html

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2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?

http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html

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4x4 front differential will not engage the axle on ford?

http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html

-------

4x4 will not engage on Ford F150?

http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html

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Dodge Ram 4x4 light keeps flashing

4X4 LOW LIGHT IS FLASHING ON DASH

http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html

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Ford 4x4 front wheels will not engage?

http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html

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These details will help.

Thanks.

Dec 09, 2012 | 1999 Chevrolet Blazer

1 Answer

Chevy blazer 2005 zr2 will not go into the 4X4 option either hi / lo or auto 4X4 press the button into each one and all it does is keep blinking and will not engage into 4 wheel drive


under your batt tray needs removed youll find a rubber hose goin to a vacume canastersee that it aint cracked or got a hole

Oct 27, 2012 | Cars & Trucks

1 Answer

I have a 1995 gmc jimmy 4x4 4.3l and I am having problems with the 4x4 .ok here's what my problem is When ever I switch in 4 lo or 4 hi The 4 hi don't seem to engage And the 4 lo engages and the...


The actuator under the battery runs the engagement of the front Diff .If 4 - wheel low is working and high is not then that is a linkage adjustment problem at the transfer case or a internal problem with in the transfer case not the transmission . Those transfer case are not that expensive from a salavage yard if that ends up being your problem and they are not that hard to change ... Alot easier then the transmission

Aug 05, 2012 | Cars & Trucks

1 Answer

4 lo switch not engaging on a 2003 Chevrolet 1500


If you refer to the owners manual I believe they state that you need to put the transmission in neutral while stopped to engage lo range

May 20, 2010 | 2003 Chevrolet Silverado 1500

1 Answer

4 lo working, 4 hi stopped working , A4WD never worked


Hi my name is Juan and I do own a trailblazer with the same year 2002 and I read the problem you have let me try to help you Have you try to shift to 4hi with your transmission in neutral ? the transmission needs to be in neutral in order to shift the transfer case to 4hi and the vehicle needs to be completely stooped also is your service 4wd light on?? if the light is on your transfer case needs service and it can be as simple as the switch inside your car or a solenoid that has not been detected by the computer

Mar 30, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

1996 Chevy 4X4 Problem with Transfer Case & Transmission?


check vaccum actuator on front diff?use vaccum gauge should be 25 to 30lbs to open had same problem 94 gmc sierra ext cabb 4x4 5.7 ordrive tranny

Mar 12, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

4X4 LIGHT KEEP'S FLASHING


Gm has had a huge problem with their 4x4 switches on those models. Replace the switch it's about a 10 minute job.The switch is about $70.00

Jan 12, 2009 | 2003 GMC Sierra 1500

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