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Chevy S10 - GMC S15 and Sonoma Transmission Problems

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Comments

  • jfreejfree Posts: 5
    I don't understand why it would run fine for the fifteen minutes or so we drove it around after getting everything buttoned up, then forty miles on the highway, then decide to start acting up. It doesn't run hot, it doesn't sputter or hesitate like it isn't getting enough fuel. The fuel pump is only two years old or so and the filter was changed at the same time as the pump. Are you thinking bad injectors? I put it into reverse and it doesn't even feel like it's engaging anything. Push the gas pedal and nothing. In drive it feels like walking in chest high water.
  • gonogogonogo Posts: 869
    Are you saying you have no reverse all the time or only after driving 40 miles?
    When you push the gas pedal and nothing does the RPM rev up?
  • jfreejfree Posts: 5
    I have no reverse right now and I had no reverse before I changed the transmission. It will go reluctantly in drive, but I doubt if I can get up to any respectable speed. When I try to accelerate with the truck in reverse it revs to about 2500 rpms. I used to be able to smoke the rear tires with the brake held so if it is the brakes locking up I don't know why it won't break free in reverse as its the opposite of first. When it first crapped out on me I just assumed it was the tranny, the engine was running as good as it had in quite a while and while I was on the highway it felt like I just lost all power to the rear wheels. Putting the truck in park wouldn't hold it still, the fluid smelled like burnt death, and the truck would barely move so I figured the tranny was just toast. Now I'm wondering if there really is a significant connection to the brakes, like maybe the rears are getting hot and locking up at highway speeds. Maybe the brake light coming on isn't connected to the ABS light coming on. I usually replace the front pads every year and a half or so, the rear shoes were replaced in '04. I'm just shooting in the dark, trying to think of anything. My patience is wearing thin with this truck.
  • gonogogonogo Posts: 869
    Well a wiring problem would not cause no reverse. Will it go back if you push the truck?
    What is the history on the replacement transmission, junk yard?
    That transmission is infamous for broken sun shell, no reverse, no second or fourth.
  • jfreejfree Posts: 5
    Its a used tranny with supposedly 44k on it. It has a ninety day warranty on it so I'm covered there. I just don't want to go through the trouble of another replacement if something else is the problem. It doesn't want to roll backwards in neutral. I had to mess with it for a half hour yesterday to make it move in reverse so I could get it up on a car hauler to get it to my garage.
  • gonogogonogo Posts: 869
    If it will roll back with the drive shaft disconnected, has to be a transmission problem.
    Any chance you rear differential is shot?
  • jfreejfree Posts: 5
    I jacked the rear end up yesterday and ran through the gears. Nothing in reverse, in drive it makes a terrible racket, metal an metal, coming from the tranny. The place I got it from sold me a piece of junk, no better than the one I took out. The only thing I can think of is the new fluid made it run okay but once it all ran through and thinned out it was back to junk. I'm going to have to pull it out again and try to find a better tranny. I checked the rear brakes when I had it off the ground, no problems there, and the rear end felt and sounded okay. Thanks for your replys.
  • gonogogonogo Posts: 869
    Yes, planetary gears are shot, and sun gear too.
  • Hi, please help! I know little to nothing about cars, haven't had one in 7 years, but recently bought the above mentioned vehicle(it's a 4 speed), cheap, for use only sparingly. After a few weeks and adding maybe...30 miles to the odometer it's suddenly hard to get into any gear without grinding. My completely uneducated guess and hope is that the clutch cable is not tight enough, and is not adequately disengaging what needs to get disengaged when I shift. This guess is because I do ride the clutch more than I ought to due to a frighteningly long and narrow driveway that I have to use first gear and the clutch pedal to squeeze through. And the pedal does seem looser than when I first got it (though it's not dropped to the floor as if the cable was snapped). The problem seems to get worse as the car warms up (and ended up today in the car stalling out with the clutch pushed all the way down to the floor). The previous owner said they recently replaced both the slave and master cylinders. I am not super great at timing my gear changes to avoid grindage (though getting better). Reverse and first are bigger problems. Can someone tell me how to adjust the tension on the clutch cable, and if this could even be my solution? If I am way off base, and need a mechanic, any ideas on how much it might cost to repair? I am quite poor, especially right now, but do need the car for some things. Would the Chiltons book help me? I can't afford to buy one, but the library (ironically, the branch all the way across town) has a copy I could check out. Thanks so much for your time and advice!
  • 97 s-10 4 cyl. 5 speed.

    switched rear axle for two reasons, burned old one up, and gas mileage.
    old rear end had 4:10 gears in it. switched with 1995 s-10 rear axle with 3:42 ratio.
    done this before some years ago, but found out you don't just change out speedo gear anymore. parts guy at dealer said that the speed sensor listed for that truck is the same for many years as well as for manual or automatic trans. now have calibration issues. anyone have the answer to getting it re calibrated? is it an pcm thing?
    any help is much appreciated.
  • gonogogonogo Posts: 869
    I believe it is a PCM cal, call a dealer and check and get an estimate.
  • schlaschla Posts: 1
    i broke the tranny on my 98 S10 when I was rolling slightly forward when I set it into reverse. there was a bang and then no reverse and no third gear. shop told me to replace the transmission. called AAMCO and they were a waste of time estimating how much it would cost to repair
  • fordfan_17fordfan_17 Posts: 175
    you broke the reverse reaction shell its a common weakpoint in all 4L60/4L60E transmissions but you should have only 1st gear and 3rd gear only ( takes a long time to shift from 1st to 3rd. trans will have to be removed and the shell replaced
  • Sounds like it could be a bad clutch. This happened to me with a dump truck that I drive at work. My boss ended up having the clutch replaced in the truck.
  • jugfujugfu Posts: 2
    I have a 2003 sonoma 2wd 2.2 litre with automatic trans. ocassionally trans will not move in 1st or reverse, feels like its slipping but will eventually catch in to gear.
    will not do this everytime usually when first taking off for the day.
    any information would be appreciated. Thanks
  • fordfan_17fordfan_17 Posts: 175
    try letting your vehicle warm up before trying to shift into gears its not a fix for what we in the transmission industry call "morning sickness" but it will give you a little time to get some money saved up for an overhaul.
  • jugfujugfu Posts: 2
    I have a sonoma with a 4L-60E 2wd with a four cylinder,does anyone know if the 4l60e out of a sierra or silverado would fit this truck, trans has removable bellhousing. thanks for any help
  • fordfan_17fordfan_17 Posts: 175
    what year ? since there are running changes such as pwm pump and non-pwm pump makes a difference and what year is the vehicle your getting the trans from? and what engine size will also make a difference because of calibration for instance you have a 4 cylinder and the truck has a v8.....
  • I am getting a P1886 code (shift/timing solenoid). it shifts hard from first to second gear, and check engine light is on. i need to an e-check on vehicle to obtain plates for the truck. with the check engine light on the truck will fail automatically. can anyone help me locate this solenoid, and can i replace it or does t need to be torn down to get to the solenoid. Any help would be appreciated. the abs light also comes one once in a while for no reason. the truck has been sitting for about 7 or 8 months. thanks
  • My 89 Gmc s - 15 with a 2.5 litter 5 speed 2 wheel drive sputters durring shifting and when down shiffting it likes to grind in third can some one please help me on theis two things.
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