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You are watching: 2000 chevy blazer stuck in 4 wheel drive


i have actually a 98 blazer 4 wheel drive .. The problem im having actually is the vacuum canister under the battery box that pulls the cable to interact the former axle right into 4 wheel journey wont permit go and release the cable as soon as u placed it in 2 wheel journey .. Something ~ no lettting the vacuum off of the canister and i cant number it out .. Ns didnt recognize if over there is another valve somewere the releases the vacuum from this canister ... This hose that comes from it go somewere behind the motor and also then i cant watch it no longer .. Someone please help me cuz winter is comming and i would love to have actually my 4 wheel drive functioning right before winter comes .... Many thanks guys
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2000 GMC Jimmy 2wd 2 door / LQ9, L92 heads, 224/230 cam and also LS3 intake, She has actually been parted, stripped and retired.1998 Pontiac Firebird Formula, engine indigenous the Jimmy and also a developed t56- offered 2006 Trailblazer SS, acquiring a 403 stroker v TVS2300 2000 Olds Bravada- SOLD
Here"s what I"ve learned so much trying to acquire mine to work. The vacuum canister under the battery box only engages when in 4 lo. It is for additional traction as soon as in sand or pulling steep hills. In 4 hi it should not be involved at all. The line goes come a vacuum switch and on some vehicles is situated on the firewall. Mine 96 doesn"t have actually it there, however. Girlfriend should be able to remove the rubber hose (pull straight down) Then view if the cable moves openly by pushing the rubber part in and out. It have to be feather loaded and move through itself into the extended position. (this is the UNLOCKED position)
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there is a vacuum solenoid valve increase by the firewall, it might be that.didnt watch the last post sorry, however I did incorporate the factory manual location
2000 GMC Jimmy 2wd 2 door / LQ9, L92 heads, 224/230 cam and also LS3 intake, She has been parted, stripped and retired.1998 Pontiac Firebird Formula, engine native the Jimmy and a constructed t56- marketed 2006 Trailblazer SS, obtaining a 403 stroker with TVS2300 2000 Olds Bravada- SOLD
ill need to go out and also see if i can uncover that vacuum point on the firewall ns didnt notice it when i to be looking at it prior to .. Anymore help is still substantially appreciated too males thanks again
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I was reading through the business manual, however it did not give diagnostic info. I think it is a switch, for this reason it"s most likely the culprit.
2000 GMC Jimmy 2wd 2 door / LQ9, L92 heads, 224/230 cam and LS3 intake, She has actually been parted, stripped and retired.1998 Pontiac Firebird Formula, engine from the Jimmy and also a built t56- marketed 2006 Trailblazer SS, gaining a 403 stroker with TVS2300 2000 Olds Bravada- SOLD
I was analysis through the service manual, yet it did not offer diagnostic info. I think it is a switch, therefore it"s most likely the culprit.
Just got ago from my neighborhood transmission shop. I was wrong saying the vacuum canister just engages in 4 lo. (I"ll need to reread my owners manual.) mine Jimmy is still grounding in 4 hi however the technology at the shop disconnected the vacuum hose at the tee up the heat a few feet and plugged the hose through a golf tee. This disconnected the front axle native the drive line. The transfer case is quiet engaged yet is no driving the front axle. Need to drive to Detroit tomorrow and also he said this will al least obtain me under the road with no damage but my fuel mileage will suffer. Once I have more time, will certainly out her right into the shop because that repairs. He believes that the "motor" is frozen, providing the signal that is stuck in 4wd, thus, not releasing the vacuum top top the canister.
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Just got earlier from my neighborhood transmission shop. I was wrong saying the vacuum canister only engages in 4 lo. (I"ll need to reread my owners manual.) mine Jimmy is still grounding in 4 hi but the tech at the shop disconnected the vacuum hose at the tee increase the line a couple of feet and also plugged the hose v a golf tee. This disconnected the former axle indigenous the journey line. The transfer instance is quiet engaged however is no driving the prior axle. Have to drive to Detroit tomorrow and also he stated this will al least get me under the road with no damage however my fuel mileage will certainly suffer. Once I have much more time, will certainly out her right into the shop for repairs. That believes that the "motor" is frozen, providing the signal that is grounding in 4wd, thus, no releasing the vacuum on the canister.

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Are you certain the transfer situation is still involved with it in 2HI? seize the prior driveshaft and shot to revolve it to be sure. If it is free, your problem can be the vacuum switch on the transfer case that activates the actuator. 98 3-button setups have a move on the transfer case. Cheapest point to try. Look in the HELP! ar of Autozone. Replace it and cycle that through all of the settings (but wait about 10 seconds in between shifts). If it works, you could have simply solved her problem.If that is locked (or friend can"t acquire it right into 2HI), it might be her encoder on the transfer case (likely) or the computer (less likely, yet common). Also check the ATC fuse under the hood. I once obtained it stuck in 4WD and also it to be the ATC fuse. GM dealer put a 10A rather of a 20A to try to defraud me. Also shot pulling the 4WD fuse for around 10 secs to reset the system. If that works, that is electric (TCCM (computer) or the encoder). If that is engaged, in 2HI and the encoder is functioning (going v all the settings properly), you might be looking at an inner transfer instance problem.
1998 GMC Jimmy 4.3L SLT ~131,000 MilesMods: eBay Eurotails, Spectre CAI, B&M transmission cooler, deep trans pan, inner LEDs, Posi-Lok, tail/turn/reverse/fog light LED switch 2007 Chevy Trailblazer 4.2L LT~54,000 MilesMods: k&n CAI, infectious diseases world fashion cooler, deep infectious diseases world fashion pan, bull bars, LED spot lights/light bar, blue LED internal lights, tail/turn/reverse/fog light LED conversions