Question about Chevrolet 1500

1 Answer

My 1996 chevy silverado front differential actuator does not engage.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Chevrolet Master
  • 975 Answers

Yep,unplug it ,unscrew it ,plug it back in engage the 4x4 and watch,the piston should come out in like 2 seconds,kinda slowly ,it's a heated gas that extends it. Should come out with enough power to make it hard to stop with your hands. If it does come out,that's trouble ,shim out of place in the diff,
If it doesn't extend at all or only an inch or so ,it's the actuator. Should extend out far enough to make the rubber boot "wrinkle free".
If the actuator is ok,the axle housing has to come out.
If the truck is jacked up you can take the actuator out and engage the axle with a screwdriver or whatever ,just push on the piston where the actuator pushes ,should slide right in,only a small spring aginst it.

Posted on Mar 13, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 1996 chevy 4x4 im not getting juice to the 4x4 fuse neither are the front end locking in the transfer is locking in but not front tires the front tires still wont lock in if I run jumper wire from...


I would say the actuator itself located in the front differential is bad itself . If it is locked up , no matter how much juice you throw to it , it will not engage. Last one i purchased was around $98 dollars at the parts house and took about 15 minutes to change out . Mine was shorted out inside and blowing fuses .

Feb 16, 2015 | Chevrolet Cars & Trucks

1 Answer

4wheeldrive wil not engage


Manuel engagement uses a vacuum switch on transfer case that provides vacuum to the actuator next to the battery. Electric types a transfer case motor engages the front drive shaft and a electric axle shift actuator is used to engage the axle shaft on passenger side of differential

Nov 04, 2013 | 1996 Chevrolet Blazer

2 Answers

Have a 1985 chevy s10 pick up & the 4 wheel drive wont engage. I already replaced the solenoid on top of the transfer case, & it still wont engage. I can hear the transfer case engage & I have vacum at the...


Make sure that the vacuum hose connector is connected AND connected correctly at the transfer case and at the front differential. If that is all right and the front differential still doesn't engage, then you need to test the vacuum actuator at the front differential.

Oct 25, 2013 | 1985 Chevrolet S-10 Blazer

1 Answer

1989 chevy 2500 4x4 not engageing


front differential has a electronic modulator / actuator it engages / lock in front differential they burn out frequently I bought a manual one from my local 4X4 shop no more problems

Dec 17, 2011 | 1989 Chevrolet C/K 2500

1 Answer

Front wheels won't engage when in 4 wheel


Then the problem would be in the differential. something came loose or broke off the actuator on the inside

Jun 17, 2010 | 1996 GMC Sierra

2 Answers

I have a 2002 Chevy Silverado 8 cylinder 4wd extended cab. It has the push button shifter for 4wd. When I try to use 4WD Auto or 4WD Hi, the indicator lights come on but the 4wd does not engage. I read...


Fuse is located at the end of eh dash on drivers side and the Actuator is located at the front differential and on the passenger side.
When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.

Check voltage at the connector for the front actuator (at the front differential - it looks like a large bullet that threads into the front diff.) If it has 12 volts, the actuator is the problem. If it does not have 12 volts, check the transfer case switch and the power feed to the transfer case.

I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.

GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.

Good luck. The actuator is usually the problem 90% of time but recheck all of the wire harness just to maker sure there is no short before replacing any parts. The actuator may not be fully engaged or disengaged and the fork to the spline may be what is causing the grinding.

88-UP C/K ACTUATOR UPGRADE
VEHICLE SERVICED: 88-99 CHEVROLET FULL SIZE
PURPOSE: IMPROVE AXLE CONNECT ENGAGEMENT TIME AND
COMPONENT RELIABILITY.

SYMPTOMS: NO FRONT DRIVE AXLE ENGAGEMENT WHEN SHIFTED INTO 4X4.

Obtain the following GM part numbers:
(1) 26060073 Actuator
(1) 88959465 Harness/Spacer Kit

Feb 03, 2010 | 2002 Chevrolet Silverado

2 Answers

The 4wd in my 1996 chevy silverado 1500 wont work and i would like to know how many volts should be travelling through the 4wd wires


On the full size, the front actuator is electric, not vacuum.

When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.

Check voltage at the connector for the front actuator (at the front differential - it looks like a large bullet that threads into the front diff.) If it has 12 volts, the actuator is the problem. If it does not have 12 volts, check the transfer case switch and the power feed to the transfer case.

I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.

GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.

If I were you, I would buy a new heated actuator. They are available at most auto parts stores, and are about $90. They are also on eBay for about $55 plus shipping. These are very easy to change - just thread out the old one, and thread in a new one.

Good luck. The actuator is usually the problem 90% of time but recheck all of the wire harness just to maker sure there is no short before replacing any parts.

Jan 07, 2010 | 1996 Chevrolet K1500

1 Answer

2004 chevy 3500 dually 4X4 front axle not working and no light showing 4X4


On the full size, the front actuator is electric, not vacuum.

When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.

Check voltage at the connector for the front actuator (at the front differential - it looks like a large bullet that threads into the front diff.) If it has 12 volts, the actuator is the problem. If it does not have 12 volts, check the transfer case switch and the power feed to the transfer case.

I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.

GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.

If I were you, I would buy a new heated actuator. They are available at most auto parts stores, and are about $90. They are also on eBay for about $55 plus shipping. These are very easy to change - just thread out the old one, and thread in a new one.

Good luck, That actuator is usually the problem 90% of time.

Dec 28, 2009 | 2001 Chevrolet Silverado 2500HD

1 Answer

01 Chevy Silverado 4 X 4 not working. 4WD light


Having the same exact problem but with my 1999 escalade. Thought it was the actuator bought a new one installed it transfer case would engage but front end wouldnt lock. Took it out of housing left it plugged in got a friend to go through all the 4wd for me and the plunger never moved out the actuator. Checked my wiring harness which is a four prong ann it had one hot prong like it is suppose to. Traced wires even replaced dash switch same problem. Taking it to local dealership tom to have it checked for codes. I was told it could be the transfercase actuator even though its workin that actuator is what sends power to the front to engage the actuator to lock the differential.

May 12, 2009 | 2001 Chevrolet Silverado 1500

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

403 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8210 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...