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Chevrolet transmissions & drivetrains repair questions and answers

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  • Keith
    Keith - 2006 Chevrolet Uplander - Transmissions & Drivetrains - 5/9/2014
    Tranny slipping between 1st /2nd and 2nd/3rd gears.. seems to be common problem for this car.
    Took the car to my mechanic no codes popping up showing anytning wrong, tranny fluid level is fine, been reading about solenoid problems? Any help would be great!
    0 answer
  • Keith
    Keith - 2006 Chevrolet Uplander - Transmissions & Drivetrains - 5/9/2014
    Transmission is having trouble between 1st and 2nd and 2nd and 3rd gears. Seems like a common problem for this car.
    No codes popping up in the computer of the car when i took it in to get looked at and tranny fluid it at the proper level. Heard something about solenoid's possibly being the problem?
    0 answer
  • wayne
    wayne - 1994 Chevrolet C1500 - Transmissions & Drivetrains - 5/8/2014
    Truck idles high while engines runs setting still
    all the vac lines and fuel lines are in good shape had transmission leak on the trans lines but i fixed but still have the idle high problem but when i put it in gear truck completly dies
    • GT500Knights
      5/8/2014 GT500Knights
      Check ignition timing. It may be too far advanced. Using a timing light, readjust ignition timing. But there are a few things to do prior to adjustment.

      Timing must be set under the following conditions:
      - normal operating temperature
      - air cleaner installed
      - air conditioning off
      - transmission in neutral
      - disconnect SET TIMING connector. The location of the set timing connector is inside the cab where the heater box and the carpet meet on the passenger side floor. Pull carpet back to expose the single wire and connectors on the outside or the control module harness. The wire colors are tan with a black stripe. DO NOT disconnect 4 wire connector at distributor.

      To adjust base ignition timing, after the above steps have been followed, loose the hold down bolt at the base of the distributor. Use the timing light to determine how far the mark on the harmonic balancer needs to be moved so that the base timing is set to 0° BTDC. Tighten hold down bolt at distributor and re check for proper timing. Clear control module trouble code by disconnecting control module power source. With engine at operating temperature, drive vehicle at part throttle with moderate acceleration and decelerate to idle condition. This will "teach" the control module and return engine to normal performance.

      Double check for any vacuum leaks.
  • wayne
    wayne - 1994 Chevrolet C1500 - Transmissions & Drivetrains - 5/8/2014
    I had a transmission leak but i fixed i now have a problem when the trucks sits idles high but all vacuum lines good
    all vacuum lines are in good shape
    0 answer
  • AutoMD Member
    AutoMD Member - 1994 Chevrolet G20 - Transmissions & Drivetrains - 5/7/2014
    Will not downshift at speed or when stopped
    Can downshift manually and will upshift normally. Think it might be downshift relay but unable to find location
    0 answer
  • AutoMD Member
    AutoMD Member - 2008 Chevrolet Malibu - Transmissions & Drivetrains - 5/6/2014
    Service traction light is on, my car goes from ok to shifting funny wen upshift, light for engine came on got it checked
    and it said bank 1, o2 sensor but it goes off and comes back from time to time, but the service traction light is on idk whats happening? i have a malibu 2008 Lt v6
    0 answer
  • AutoMD Member
    AutoMD Member - 2011 Chevrolet Silverado 1500 - Transmissions & Drivetrains - 5/4/2014
    Rear end noise at 40 mph
    58000 miles just bought dont known history. At 40 miles an hour rear end stars humming below 40 its quite and above 40 it goes away.
    0 answer
  • Cobalt Owner
    Cobalt Owner - 2008 Chevrolet Cobalt - Transmissions & Drivetrains - 4/19/2014
    Why would the RPM change rapidly up and down between 30mph and 60mph?
    When driving between 30-60 mph the RPM needle will go up and down and the car will have jerking movements a few times before it stops. Could this be a speed sensor problem?
    0 answer
  • AutoMD Member
    AutoMD Member - 2002 Chevrolet Trailblazer - Transmissions & Drivetrains - 4/18/2014
    Why does my car jerk while accelerating.
    My trailblazer jerks lightly kinda like a skip when accelerating but doesn't do it when gas it pushed down harder. Only when lightly gassing arround 50-60 mph. Doesn't do it when I let off gas or accelerate harder just the inbetween. What could this be?
    • HouseCallAuto
      4/18/2014 HouseCallAuto
      Plug in a code reader and read fault codes. Checking for codes cannot be skipped as it is the first thing that should be done.
  • AutoMD Member
    AutoMD Member - 2003 Chevrolet S10 - Transmissions & Drivetrains - 4/15/2014
    The clutch pedal is at top when engaging. and push pedal to floor the trans is hard to put in gear. no slipping of the c
    clutch is only 30,000 miles old and I am 1,000,000 miles of exp. on clutches.
    • alex
      4/15/2014 alex
      how many miles are on the transmission you could of had a syncro clutch break or something. if you change the oil in the tranny look for. don't be alarmed if their is alot of shavings in there
    • HouseCallAuto
      4/15/2014 HouseCallAuto
      If the transmission is difficult to put in any of the gears (not just first gear) with clutch pedal depressed but it is able to easily engage in the gears with the engine not running, then your cause is the clutch hydraulic system has either a bad slave cylinder or a bad clutch master cylinder or the system has to be bled.
  • Apache
    Apache - 1998 Chevrolet Tahoe - Transmissions & Drivetrains - 4/11/2014
    2WH led on shift control switch is off.
    no led on shift control switch unless I push a button. 2WH only lights if I press it, flashes then goes off. all buttons do the same.
    0 answer
  • tweet
    tweet - 1998 Chevrolet C1500 - Transmissions & Drivetrains - 4/3/2014
    I have a 98 chevy 1500 1/2 ton v8 my transmission will shift fine to 5th but once it warms up it will only shift to 3rd
    At first it shifts fine but after it warms up it shifts hard out of first gets to 3rd and it wont shift out if i come to a stop it stays in 3rd when i take off
    0 answer
  • AutoMD Member
    AutoMD Member - 2003 Chevrolet Cavalier - Transmissions & Drivetrains - 4/2/2014
    I noted a recall on the Power Train in 2007. I purchased car from private owner, therefore, did not receive recall noti
    notice. Please let me know if I have any options. I am now having problems with my Cavalier
    0 answer
  • AutoMD Member
    AutoMD Member - 2011 Chevrolet Silverado 1500 - Transmissions & Drivetrains - 3/30/2014
    Loud nocking in rear end, when coasting and then accelerating
    My 2007 GMC made this same noise and they would take the drive shaft out and put grease on the yoke. Chevrolet dealer said this would not be required on my 2011 chev. Now the last few weeks there is a popping noise when the transmission shifts about 30 to 40 miles ...
    0 answer
  • AutoMD Member
    AutoMD Member - 2006 Chevrolet Avalanche 1500 - Transmissions & Drivetrains - 3/23/2014
    Vehicle Slows/hesitates/stops -while-the traction active warning is on what is the problem ?
    This occurs about every 100 miles .
    • Jimm
      3/23/2014 Jimm
      It does that to tell you that your traction control senses slip on one of the wheels and is transferring some of the spin to the other wheel(s). May be related to one or more wheel speed sensors.