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Blazer Jimmy 4WD Questions

76 messages,  Last post on Aug 04, 2008 at 8:04 PM

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What is this discussion about? Chevrolet Blazer, GMC Jimmy, Auto Repair, SUV

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#63 of 76 Re: 2001 Chevrolet Blazer 4WD [wally1937] by zenebisis Jan 16, 2008 (3:34 pm)
Replying to: wally1937 (Apr 10, 2007 9:28 am) yes, no fuse means no cruise... check the wires for the ABS on the new bearings, this is what causes that ABS problem... I had it twice, once before replacing the bearings and the 2nd time I had a broken wire leading to the ABS box... you may need to pass a dealer to have the computer reset on the ABS once this is fixed... good luck.. BTW if the bearing are not GM AC delco this can also be your problem, the first set of bearing I got, just didn't work with the ABS system and had to be replaced a 2nd time.
#64 of 76 4wd question by zenebisis Jan 16, 2008 (3:40 pm)
I have a 97 blazer LT with the 4wd, only i don't have the buttons to swap from 2 to 4 wheel... I wanted to know if this option can be added and what changes would have to be made to do so? anybody done this already?
#65 of 76 1995 Chevy Blazer S-10 4WD not engaging by chevyride22 Feb 04, 2008 (9:46 am)
My 1995 Chevy S-10 Blazer will not go into 4WD. The 4WD is electonic with a button for 2H, 4H, and 4L. When you hit the 4H button, the light comes on and you can hear the relay in the control module in the dash activate. I can also hear the tranfer case motor engage. The drive shaft to the front differential is also engaged. I have replaced the vacuum switch on top of the transfer case (ball inside was sticking). I am not getting vacuum to the vacuum diaphram actuator located under the battery tray. This is what engages the 4WD. I have checked all vacuum hoses for breaks or kinks. Where does the vacuum hose go after it leaves the actuator? It appears to go in behind the motor on the back leftside as you face the motor, but cannot see where it connects. Does anyone have or know where I can get electrical and vacuum diagrams of the 4WD system? Are there any other items that can be checked? Thanks.
#66 of 76 I NEED HELP!!!!!! by gmc94 Feb 11, 2008 (10:41 pm)
Hi i recently bought a used 1994 GMC Jimmy and i have some problems with the 4-wheel drive switch. When i goo into 4-wheel high it will not let me i can feel the gears trying to switch but it doesnt work, but when i switch it into 4-wheel low it works perfectly i dont know if i should replace the switch or it has somethin to do with the transfer case itself can someone help me
#67 of 76 '99 Blazer 4x4 grinding by jerseyj2 Feb 15, 2008 (8:53 am)
Hi,   I have recently acquired a '99 Blazer w/ 3 button electronic 4WD. It has almost 190,000 miles on it and has already become a money pit. I've replaced the transmission and torque converter, intake manifold gasket and both upper and lower ball joints in a 2 month period. Now I'm concerned about the 4WD. When I got the truck the 4WD worked fine..shifted on the fly smoothly no grinding. After I got it back from the tranny/ torque converter work there was a nasty grinding when i put it into at 50mph and was told by the mechanic that did the transmission work that I should always be stopped and in Park or Neutral to put it in 4WD regardless of what the manual said. That seemed to be fine but last night (I live in Michigan with lots of snow right now) I put it in 4H just to get it into the driveway and when the tires started spinning there was a terrible grinding from underneath. I am still able to move it from 4H to 2H (haven't tried 4L) and it seems to drive fine in either with no grinding unless the tires spin. Any clues would be greatly appreciated. I have put almost $3500 into repairs on this truck (which is more than I paid for it in the first place last November).   Thanks! Replies to this message: dtlb26 (Feb 18, 2008 8:52 pm)
#68 of 76 Re: '99 Blazer 4x4 grinding [jerseyj2] by dtlb26 Feb 18, 2008 (8:52 pm)
Replying to: jerseyj2 (Feb 15, 2008 8:53 am) I have the same problem. Talked to mechanic, suggests there is a small motor that switches the 2wd and 4wd. I'm taking in my car in 1-2 weeks..I hope that fixes it.
#69 of 76 Re: 2002 4X4 stuck in 4L [posblazer] by chevyride22 Feb 23, 2008 (10:37 am)
Replying to: posblazer (Dec 14, 2007 3:27 pm) Where is the "vacuum switch under the hood seal" located? I am not getting vacuum to my actuator located under the battery tray. I have checked all the vacuum hoses and all are o.k. Do you know where the vacuum source is located ? If I connect a vacuum source to the actuator I can get the 4WD to operate. I have what looks like a sensor that is located between the battery and the coolant reservoir and is mounted on the fender well. One end has an electrical connector and the other end has a vacuum hose on it. Is this the switch you are refering to? Thanks.
#70 of 76 buffgene by buffgene Feb 24, 2008 (2:09 am)
I have 1994 gmc jimmy 4wd when i push the 4 hi or 4 lo the light flashes an i hear what sound like a relay then the light goes out no 4wd any help thanks.
#71 of 76 leitte by leitte May 24, 2008 (9:35 am)
where is the fuel filter for a 1992 S10 blazer 4x4 located? Replies to this message: jlflemmons (May 24, 2008 2:31 pm)
#72 of 76 Re: leitte [leitte] by jlflemmons May 24, 2008 (2:31 pm)
Replying to: leitte (May 24, 2008 9:35 am) Isn't it in the frame rail under the drivers door?

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