Question about 1996 Chevrolet Blazer

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96 chevey blazer 4x4

No power to front wheels when in 4 wheel drive.....front drive line does turn

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  • gunrunner195 Nov 03, 2008

    i want to remove a radio from my 1500 chevrolet pickup

  • Anonymous Jan 19, 2009




    I have the same problem. After shifting it sound like the vehicle is in 4x4, but nothing is engaged. My mechanic told me I need a new "four wheel drive actuator". It costs under $100.00 at AutoZone.


  • Anonymous Jan 27, 2009

    4x4 button is lit but no power to front wheels. anti-lock brake light is also on.

  • Anonymous Mar 20, 2014

    dash selection ....will not come out of 4 wheel drive

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Sounds like the front axle electric actuator is bad. these are mounted on the front differential housing. they are known to go bad.

Posted on Nov 02, 2008

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I had the same problem with mine, your mechanic could be wrong. In order to engage the front hubs it requires a vaccum, there should be a vaccum diaphram underneath a bunch of stuff in the front left engine compartment. Left being your left if you're looking at your engine and front being the front of the vehicle. Look for that diaphram and check the hose from it and all the way back to your transfer case. Those hoses will sometimes get dry, cracked or rotted out. All i did was go get a reel of vaccum hose and some plastic connectors and it only costed me about 10 bucks. Good Luck

Posted on Jan 22, 2009

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I have 96 Blazer that has no light at shift counsel and does not engage to 4x4 when pulling lever into 4 high or 4 low. Any suggestions?

Posted on Dec 30, 2009

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Why would a front axle on a 96 chevy blazer break in two?

Posted on Feb 25, 2009

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1 Answer

What causes rear wheels not to engage whether in 2 or 4 whhel drive? Front ones only turn when in 4x4.


If the shaft is powering out to rear end then internal on rear possibly broken differential. If no power from case to rear then broken in case.

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2005 Kia Sorento - in 4 wheel drive, on dry pavement, going slow in forward, turning a corner to the left the rear drivers side wheel tries going in reverse and when turning right the passenger side wheel...


Hi,
Yes, this is normal while in four wheel drive on pavement.
I will try and explain why.
In four wheel drive the front and rear drive axles are linked together by a chain in the transfer case and gears in both axles. This is a direct link with very little play between the front and rear axles.
When cornering a rear wheel will spin faster, or slower depending on the direction of the turn. this causes a binding in the drive line because the drive line wants all the wheels to turn at the same speed. So the wheel "skipping" going in reverse, is the drive lines way of compensating for the different speed of the wheels turning.
Never should a four wheel drive be used on dry pavement. I could cause a break in one of the drive line components. On a slippery surface , snow, mud, gravel, grass, There is enough slippage in the surface to aloow the driveline to compensate for the different speeds of tire rotation.
So do not try at highway speeds on dry pavement.
Your four wheel drive system is working just fine.
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1 Answer

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Operationally vacuum holds the IWE ( Integrated Wheel Ends ) out, and once vac is removed the spring engages the IWE.

Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.

- If the front drive shaft does not turn :
Shut of the truck ( still jacked up, and supported ) remove the vac lines from the IWE. The spring should push the gears in, without the vac line on.
Check the vent line ( tube that is routed into the engine compartment with nothing attached to it ), for blockages.
If the vent line is clear, and with the vac lines off the IWE should be engaged ( both front wheels locked ).
If they lock, the problem is with the IWE solenoid not shutting off vacuum to the IWEs. There is a TSB on the 2004-2006 IWE solenoids, a newer revision has been made, and used from 2007 and newer MYs.

Here is a block diagram of the IWE system
b3ce05f.jpg

Dec 19, 2009 | 2005 Ford F-150

1 Answer

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there is a vacuum switch on top of the transfer case it applies vacuum when the truck is shifted in to 4 wheel drive . if you connect it to direct vacuum you front axle will be engaged all the time

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1 Answer

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1 Answer

2001 Kia Sportage 4 Wheel Drive Wont Engage


fuses relays in engine compartment or in dash board . look at transfer case look for vacuum lines or electric lines.its probably electric. because most 4 wheel drive uses electric motors.99 up to 2009s model.

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3 Answers

4 wheel drive lights


are you setting still or driving when ingaugeing the 4 wheel drive if you are setting still try putting it in with vehicle moving if it does not light up steady in 4wd then it is not going in 4wd

Oct 24, 2008 | 2001 GMC Jimmy

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