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Chevrolet Blazer GMC Jimmy Transmission Problems

382 messages,  Last post on Apr 12, 2013 at 10:12 AM

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What is this discussion about? Chevrolet Blazer, Transmission, SUV

Messages Page 37 of 39

#360 of 382 97'chevy blazer 4x4 Transmission problem by greasymike

Dec 04, 2011 (3:59 pm)

I was driving down the road about 50 mph. & suddenly the trans.acted like it was in neutral
i coasted over to the side & i didn't have any gears at all, no foreward or reverse gears!
I know it isnt the transfer case because when you put it to drive, you would hear noise from it,
no unusual noises no matter which gear you put it in?
Could this be the front pump going out, or possibly the torque converter,
It was real strange, it went from fine to no gears at all just like that! thanks Would appreciate
any input on this. Mike!

#361 of 382 Re: 97 Blazer Transmission Key switch [drakmor2012] by dgcaller

Dec 05, 2011 (2:34 am)

Replying to: drakmor2012 (Dec 04, 2011 2:19 pm)
There are several input sensors that feed the computer, which controls a set of solenoids in the valve body. They are what actually do the shifting, along with the shift lever. All those solenoids require electricity, of course, and if the power gets interrupted by a bad contact in the key switch (where the power comes from) all sorts of weird things can happen. Having only 2nd and 4th gears, for example, or stuck in 4th when the shift lever is in Drive. But you can have bad solenoids too, especially the high pressure solenoid. There are some bugs in the original wiring harness in the valve body, and Chevy has a replacement harness that has two solenoids hard wired to it. But don't go replacing anything yet. Did the service engine soon light come on when you had this trouble? If so, take the car to a diagnostic place and have them check the DTCs (diagnostic trouble codes). They tell you exactly what it wrong. UM, well. most of the time. When my key switch went out, I got DTCs saying two of the solenoids were bad, but it turned out that they were just not getting power from the key switch.
Hope this helps.
Diane

#362 of 382 Re: 97'chevy blazer 4x4 Transmission problem [greasymike] by tony_7991

Dec 05, 2011 (6:44 am)

Replying to: greasymike (Dec 04, 2011 3:59 pm)
Sounds a bit like my trouble. Can you remember if your speedometer keeps working? In my case, it was the speedo sensor.

#363 of 382 Re: 1996 Chevy Blazer Transmission Problem [emse82] by rodantheblazer

Dec 17, 2011 (2:22 am)

Replying to: emse82 (Nov 07, 2011 6:46 am)
I got the same car. I understand what your talking about when u say the "First Ten". My car has the same issue where it only shifts just right in those first mins at the first start of the day. Get someone to check your codes. Mine was my 3-2 Shift Solenoid. I went to AdvanceAuto and got the part for like 30 something. The Solenoid just melts out in these type of trans. Just gotta drop the pan and unplug then replace. Very simple if you dont mind getting a bit messy. Good luck fellow blazer

#364 of 382 Re: 97'chevy blazer 4x4 Transmission problem [greasymike] by brothers6317

Mar 08, 2012 (6:57 pm)

Replying to: greasymike (Dec 04, 2011 3:59 pm)
did you ever figure out what the problem was with your blaz??? mine is doing about the same thing....HELP PLZ.

#365 of 382 Re: 97'chevy blazer 4x4 Transmission problem [tony_7991] by chevyproblems

Apr 11, 2012 (3:47 am)

Replying to: tony_7991 (Dec 05, 2011 6:44 am)
SAME PROBLEM HERE! Yesterday my trany went on the highway, for about a month ive heard a whining loud noise ONLY when I accelerate. Friends thought it was the brakes, altho I had 2 brake lines rotted thru. My gas gage hasnt ever worked, too costly to repair. Had problems with it sticking in 4wd/2wd, hubby fixed that. Now it needs some kind of shield thats gonna cost me 250, but in order to pass inspection IT NEEDS TO RUN! I am in BIG trouble without my vehicle. It's a 97 blazer with approx 180k miles. My friend owns a 98 thats in MUCH better shape, hoping to buy hers and transfer her trany into mine, but I have to hear what the shop has to say first. I feel your pain Blazer drivers, CONSTANT HEADACHES, and BIG ones.

#367 of 382 replaced trans; no gears by mtmtntop

Apr 14, 2012 (12:01 pm)

95 blazer 4x4 4.3; seal went out while my wife was driving, ran it dry, but it still shifted into 1 and 2nd. i bought a used trans, which was identical but now i have no gears at all. I have checked to make sure flex plate is on right, pulled a radiator cooling line to make sure front mount pump working. when i installed, i had to pull the converter back out about a quarter inch to bolt to flexplate. i have run it to check the fluid. all these things check out. i hear a whirring noise no matter what gear i have it in, but the vehicle does not move. any ideas?

#368 of 382 99 Blazer LS auto 4wd no reverse by jayarmbar

Aug 06, 2012 (1:41 pm)

First off I am new to the forum. I did spend a couple of hours searching for my problem. I found a few that were close and I tried some of the solutins that were posted.
 I have a 99 Blazer automatic with the auto 4wd, 4 buttons 4.3 vortec.
  
Last night I was driving home and heard a loud squeal and felt like I lost power. The engine was still running it just didnt feel right. So I parked it and left it overnight.
  
This morning I got in started and Reverse does not work at all. I can go forward in all four gears 1,2,3 and D. I checked the fluid both hot and cold and it is fine. I disconnected the battery and tried to find the trans. fuse as was suggested in another post. I couldn't find the trans fuse so I just checked the onesthat the owners manual said were engine, selenoid etc. Still no reverse.
  
I looked for the plug and neutral button but couldnt find them. There is what appears to be a kevlar plate from the front bumper almost all the way back to the back 2 doors. It has some type of oily fluid all underneath it.
  
I am not a mechanic and don't know a whole lot about newer cars. I am not in a huge rush but I would like to use my only car.
  
Thank you all in advance.

#369 of 382 Re: 99 Blazer LS auto 4wd no reverse [jayarmbar] by jmccann

Aug 06, 2012 (4:19 pm)

Replying to: jayarmbar (Aug 06, 2012 1:41 pm)
I don't have any suggestions for you except to suggest you take it to a transmission shop to have it diagnosed and possibly repaired, I have had similar problems with my Blzer but I lost all forward gears but still had reverse, I tried to pull the transmission myself and I did get it out but I had no confidance in putting it back in after it was repaired so I had a local shop do it, the bill was over 3,000 dollars and in hindsight I should have put the money into a newer truck in the first place. The transmission went out three more times after the rebuild but it was repaired under waranty, the final fix was turning up the pump pressure for firmer shifts, I am still driving it.

Messages Page 37 of 39

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