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Replaced actuator pump and 4x4 light still flashes and it still does not work?

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  • Cars & Trucks Master
  • 14,585 Answers

Year, make and model? replace the 4x4 module. Passenger side under the kick panel...

Posted on Nov 18, 2014

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  • 2 Answers

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Posted on Jan 02, 2017

  • 158 Answers

SOURCE: 1988 chevy 4x4 actuator

The switch for the 4wd light is on top of the transfer case. It is probably sticking

Posted on Apr 07, 2009

planet-x
  • 232 Answers

SOURCE: s10 4x4 wont work

check the fuses supplying the front viscous-coupling system solenoids, there should be at least one fuse for this marked AWD or 4WD. Also the locking hubs or the front differential may be damaged from engaging 4x4 while moving.

If it is an auto then the fuse or box fluid levels are likely areas to check.

If the fuse is found to be intact, check the relays click when 4x4 is selected, and replace the necessary relay if it does not operate.

You will need the service manual for your car to locate and identify the correct electrical equipment for the 4x4 function.

Posted on Oct 24, 2009

  • 9 Answers

SOURCE: 97 chevy silverado 1500 Z71 has push button 4x4.

no it does not

Posted on Mar 03, 2010

  • 1 Answer

SOURCE: 1996 Yukon 4X4 Electronic Shift on Fly.

I had the same problem with the shift on the fly push-button 4x4 on my 97 Suburban. GM Shop manual indicates that it could be due to an encoder error on the actuator motor. Try pulling the transfer case fuse to reset the transfer case control module. Wait at least one minute. Re-install fuse then re-try operation. Did it last week and that saved me a trip to the dealership and extensive troubleshooting.

Posted on Jan 03, 2011

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My 4x4 is not working on my 2007 Yukon, I replaced actuator and the lights on the selective dial work but no dash warning light.


replaced what actuator ? The 4X4 switch on the instrument cluster ? Did you ever think of having it check for DTC'S - diagnostic trouble codes ? There are a number of them , they are there for shorting diagnostic time DTC B0770
DTC B0775
DTC B0780
DTC B0785
DTC B0790
DTC B2725
DTC C0300
DTC C0305
DTC C0306
DTC C0321
DTC C0326
DTC C0327
DTC C0359
DTC C0374
DTC C0378
DTC C0379
DTC C0550
DTC C0558

Feb 23, 2017 | Cars & Trucks

1 Answer

Will not shift into 4x4 drive


The Front Axle Actuator is probably your problem. I have replaced my Actuator TWICE in the last 7 years.... The Reason for the Service 4WD was the Failed Attempt. If you are able to test the Power going to the Actuator and there is none, then you have one of 3 switches that went bad but Chevrolet/GM is known for having the Defective Actuators. Aftermarket Actuators are available.
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Mar 03, 2014 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

When i put transfercase in 4x4 the light 4x4 start flashing and the 4x4 didnt work


On some models it takes awhile for the actuator to warm up and activate.It is possable the actuator needs to be replaced

Jun 08, 2011 | 2000 Chevrolet Tracker

1 Answer

Indicator for 4x4 wont stay lit


that is why the light flashes and goes off, it times out, the transfer case actuator motor has most likely failed or there is damage to the wiring to the transfer case, go under the truck and chack for wiring damage at transfer case which is at reat of the transmission.

Jan 07, 2010 | 2004 Ford F150

1 Answer

4x4 lights flash dont engage


I have a 2001 chevy blazer and for the last three years when i tried to engage by 4x4 the light would just flash, in any mode, low, high, or auto. I found a vacuum hose disconected located near the top center of the firewall. I plugged it in and i was good to go. After researching I found it is a common problem. The hose goes to the actuator under the battery.

Dec 07, 2009 | Chevrolet Blazer Cars & Trucks

1 Answer

97 gmc sierra won't go into 4x4. Electronic


Take the front axle actuator out of the axle. Plug it back in and have some one push the 4x4 button. The actuator should move, it's a liniar motor. If it doesn't then the actuator is bad or there is a wiring problem. If it does there is a problem in your front diff or some where else in the system.
I'd take a guess and say it's the front actuator.

Oct 11, 2009 | GMC Sierra 2500 Cars & Trucks

1 Answer

4x4 indicator light flashes continuesly


Hi, on the front axle is the actuator for the free wheel hub. This actuator works with vacuum. You will need to establish if you have sufficient vacuum on the actuator. You should have vacuum on one side of the actuator in 4x2 mode and then the vacuum should change to the other side when 4x4 mode is selected. If your vacuum is fine and the actuator moves far enough, then you should look at the freewheel sensor situated on the front diff. The sensor might be faulty which gives the control unit the wrong info.

Oct 01, 2009 | 2002 Mitsubishi Montero Sport

1 Answer

Electronic 4x4 will not disengage


Sounds like the shift motor on the transfer case is bad. You replaced the actuator on the front differential right?

Mar 18, 2009 | 1997 Chevrolet Suburban

2 Answers

95 Blazer 4X4 Problem


maybe changing the actuator is the next step. it may pull but not hard enough to engage the front axle

Jan 20, 2009 | 2000 Chevrolet Blazer

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