Question about 1993 Chevrolet S-10 Blazer

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4 wheel drive not working

I have a 1993 chev blazer. It has the manual shift into 4 wheel drive. When I pull it down to engage the 4X4 into 4 high, it does nothing. However, when I pull it down into 4 low it does nothing till I try put it back into 2 high, some grinding heard when put in park.

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Vacume lines or vacume switch on transfer case,or vacume pod to front axle.

Posted on Jan 07, 2009

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Changed to 4wheel drive low and I can't get it to change back to 2 wheel drive.


1999 Blazer. Thing's to check. 4x4 problem. There's an actuator pump under your battery plate. Make sure its in good shape and its working proper. Next check the cable that runs from the pump to the front transfer case. Then check the actuator switch on the front transfer case. Then check the vacuum lines from the front transfer case to the rear transfer case, that should be right under the drivers side door. There's also a actuator switch on the rear transfer case witch two vacuum lines run out of. Check them also, and last check your fluid level in your transfer case. Start from the beginning to the end. Don't forget to use your 4x4 every know and then to keep it up to power. Its not like the good old days. Where a pull of the lever on the floor engaged the 4x4. I hope this helps.

Apr 09, 2014 | 1999 Chevrolet Blazer

1 Answer

I have a 93 ford 250 7.3 deisel standard with a manual 4x4 and it wants to keep jumping from 2 wheel drive to 4 wheel drive and the 4x4 shifter doesn't want to push down into nuteral


Check out F150OwnersBlog.com or 4x4Owners Blog. It sounds like the actuator inside the transfer case is stuck.

If this is the Vacuum shift setup, the plunger inside the 4x4 box is sticking. You also could have low vacuum pressure from a bad Vacuum pump on the engine.

The Electric setups worked differently. The voltage running to the underside wires to the shift solenoid had set values to extend and retract the solenoid plunger. Often, a burned out light in the inside Selector switch on the dash would affect the Voltage sent to the solenoid. A silly thing like changing the indicator bulb would restore the proper voltage underneath the truck.

Remember to sequence the trans to neutral before engaging some of the transfer cases.

I hope my solution is helpful.

Jul 16, 2012 | 1993 Ford F250

1 Answer

Grinding in and out of 4 wheel drive


You say 'new' truck, 09? or new used? I have had 3 Fords, 3 w/ manual trans. case, if you go into 4x4 Low range, you must come to a complete stop before shifting the trans. case to 4x4 mode, and I always put trans (automatic) in neutral before slipping into 4x4, it engages smoothly, no grinding. 4x4 high range can be put in while moving, but I would let off the gas pedal, shift to 4x4 high range, then resume accelerating. If there is any grinding going on doing it as above, something isn't right. Check the trans. case fluid level also, to make sure that's not an issue.

Aug 15, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

95 blazer 4x4 4 wheel drive not working


There is a vacuum actuator mounted on the front differential that locks the shafts to engage four wheel drive.

Jan 28, 2009 | 1995 Chevrolet Blazer

1 Answer

1993 4X4 BLASER 4WHEEL DRIVE


Your blazer is equipped with a shift on the fly four wheel drive. That means that at speeds less than fifteen miles per hour you can shift into or out of four wheel drive by simply pushing the four wheel high button. If you wish to shift into four wheel low. Stop, put the transmission into park or neutral, and push the four wheel low button. Same procedure for shifting back out. Never shift into or out of four wheel low while moving. And be careful in four wheel low. At full throttle your still barely moving, you don't want to blow your engine up!

Dec 31, 2008 | 1994 Chevrolet S-10 Blazer

2 Answers

1999 chev blazer 4x4 system


I have a 1999 chevy blazer that stuck in 4 wheel drive. How do you get it out.

Nov 23, 2008 | 1999 Chevrolet Blazer

4 Answers

96 chevey blazer 4x4


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

Nov 02, 2008 | 1996 Chevrolet Blazer

1 Answer

Chevi blazer 1999 transmissioin shift problem


1- STOP THE VEHICLE
2- MAKE SURE IS IN NEUTRAL POSITION
3- ACTIVATE 4WD (HIGH) MODE( MANUAL OR ELECTRONIC SWITCH SELECTOR
4- MOVE LEVER SHIFT TO ''D' DRIVE POSITION
IF THIS DOES NOT RESOLVE CHECK TRANSFER CASE SWITCH

Aug 03, 2008 | 1999 Chevrolet Blazer

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