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Pontiac transmissions & drivetrains repair questions and answers

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  • j_rangel92
    j_rangel92 - 1996 Pontiac Grand Prix - Transmissions & Drivetrains - 9/28/2013
    My pontiac won't go faster than 20 mph and it won't reverse. It also makes a weird noise. What's wrong with my baby? :(
    It makes a weird ticking or clanging noise in different shifts. It won't reverse but when it's in drive it doesn't make any noise. It won't go faster than 20mph. It doesn't jerk when the gears shift (it's an automatic) and it does stay on. It doesn't turn off.
    • HouseCallAuto
      9/28/2013 HouseCallAuto
      The transmission is *probably* junk. Gonna be like $1500 to fix it. Maybe more. Sorry, can't sugarcoat this one. Unless cat converter is clogged up.
  • j_rangel92
    j_rangel92 - 1996 Pontiac Grand Prix - Transmissions & Drivetrains - 9/27/2013
    Is this a transmission problem? My car won't reverse and won't go faster than 20mph and it makes noises.
    It doesn't turn off or jerk when it goes faster. It makes different noises in different shifts (reverse, park and neutral) It won't go faster than 20mph. What's wrong with my baby? :(
    0 answer
  • Kristin
    Kristin - 2005 Pontiac Grand Prix - Transmissions & Drivetrains - 9/13/2013
    Why is my car shutting off while driving?
    Recently while driving my RPM will drop to 0 and my car will shut off. After pulling over and letting it sit a minute it would start right back up. It displays a message saying reduced engine power, electronic throttle control and service traction system. My engine ...
    • HouseCallAuto
      9/13/2013 HouseCallAuto
      Buy a code reader from amazon for $17 and plug it into the diagnostic connector under the driver side dash and read the fault codes that are stored and update this post with the code numbers and then we will tell you what to do next.
  • psjordan70
    psjordan70 - 1998 Pontiac Grand Prix - Transmissions & Drivetrains - 9/10/2013
    My transmission will not go in drive or 3rd /2nd gears.It will go in reverse @1st gears
    It has leaked transmission fluid for about a year now
    0 answer
  • sherrihayward
    sherrihayward - 1999 Pontiac Sunfire - Transmissions & Drivetrains - 9/2/2013
    Cause for an engine to rev over 5 rpm...sluggish no power
    So driving down the hwy at 100/kph fine for first 50km then began to "hiccup. RPM would jump to 3-4 then drop back to 1-2. Pulled off highway let car sit. Started again problem immediatly presented at 20-20/kph. symptoms seemed better when dropped to 2nd gear....for ...
  • nbdude1
    nbdude1 - 2006 Pontiac Pursuit - Transmissions & Drivetrains - 8/24/2013
    My car is an automatic, base model. It makes a loud humming noise, the faster you go, the more it hums.
    155000km's. Hum is not engine related, it only happens when it hits around 25 mph and higher. The faster you drive, the louder and higher it hums, like tire noise. Throw it in neutral when driving and the sound stays the same.I rotated the tires , but this did not ...
    • Jimm
      8/24/2013 Jimm
      Where does the humming noise sound like it's coming from? In the center of the vehicle, like the engine or transmission? Does the noise sound localized - like perhaps from one of the wheels at the corner? Does the hum change according to the road conditions - such smooth versus bumpy or rough?
      Check the following conditions; worn / faulty constant velocity (CV) drive axle (on the front wheels), worn / faulty upper strut bushing (either front or rear), worn / faulty wheel bearing / wheel hub bearing (front). low transmission fluid (check and refill as necessary).

      Check these items, then post a reply with the results - for further assistance.
      8/24/2013 nbdude1
      Hi Jimm, thanks for the reply. The sound seems to be coming from the wheels, maybe more so on the drivers side. the sound only increases with wheel speed, not with the engine or when pushing it hard through the drive range of gears. Road conditions make no difference, or going around corners. If I am driving it faster than 25mph the sound is there constantly. I will check fluids and reply.
  • humble_jeremy
    humble_jeremy - 1997 Pontiac Grand Prix - Transmissions & Drivetrains - 7/28/2013
    Transmission slips out of gear but can put it in neutral turn car off and start it while still moving
    And will drive just fine for 2 mi. - 30 mi. And start slipping out of gear agsin and it startef making a rubbing - clicking noise like gears trying to engage. When I turn car off and restatt it quits until it pops back out I'm a mechanic haves to trans. Computer or ...
    0 answer
  • lovaweak
    lovaweak - 2002 Pontiac Grand Prix - Transmissions & Drivetrains - 7/22/2013
    Why wont my car shift into 2nd gear? Takes off fine and reverses, thats it!
    it has 160,000. miles on it. 4 diff mechanics put it on comp, no trans codes coming up. All 4 say something totally different! Not sure what to do. Fluid level is fine, but has a little orangish color.
    0 answer
  • kysington
    kysington - 2001 Pontiac Grand Prix - Transmissions & Drivetrains - 7/22/2013
    My tranny wont shift out of 1st gear in my 01 grand prix
    I have a 2001 Grand Prix GT i just got done replacing seals on the tranny, and it was working fine one night coming home, woke up the next morning and it wont shift out of 1st gear, i only have reverse and 1st. no matter how high the RPMs get it wont shift, and wont ...
    • lovaweak
      7/22/2013 lovaweak
      I dont have an answer but I have the same problem with my 2002 grand prix. Everybody saying something different!!
  • whoami1
    whoami1 - 2000 Pontiac Grand Prix - Transmissions & Drivetrains - 7/22/2013
    Shifter will not release from park all the time.
    I have gotten it to release when I push down with a pen where there is a little cap you take off.
    • CVO
      7/22/2013 CVO
      Stoplight switch directs current to the stop lights, cruise control, and shift interlock to turn them on or off
      When not replaced, stop lights will run continually or not function, potentially causing premature bulb failure, safety issues and/or the transmission will not shift out of park.

      Apply the brakes and check to see if the brake lights are on. In the event if the brake lights aren't on, then the cause is the stop light switch.

      2. If the brake switch is good, then inside the automatic transaxle control ( BTSI ) , the park lock solenoid could be malfunctioned.
  • prusaksr123
    prusaksr123 - 2009 Pontiac Solstice - Transmissions & Drivetrains - 7/6/2013
    I am looking for shifter, botton does not engage to letcar out of park.
    car has 12000.00 miles on it.
    • John's Auto Repair
      Seems there's a problem with the shift interlock mechanism. This is used to prevent shifting out of
      park unless the brake pedal is depressed.
    • silversteve
      7/4/2013 silversteve
      Hey dude,

      You can ask your question to some mechanics. Try this:
      I always get good answers there to my auto issues and questions. Your first question is free.

      Just thought I would let you know,
      7/4/2013 CVO
      Harry, i'm a DIY mechanic for 40 years, I went one of the site recommended by the people just like YOU and asked an auto question, i didn't get the right answer, they didn't refund my $$,LOL, I found the answer at AutoMD which is free.i joined AutoMD to help the unfortunate drivers to maintain family budget for their children.

      petermetchikoff 6/6/2013
      Yeah, thanks for the spam Stesh! Beat it!

      stesh 6/6/2013
      Hey dude,

      tweaty40 6/6/2013
      thanks but tried that site and it doesn't work at all
  • kentconn1
    kentconn1 - 2002 Pontiac Grand Prix - Transmissions & Drivetrains - 7/5/2013
    Why would my car get louder when it goes faster?
    its quiet at idle but as i gain speed it gets loud was told its the hub bearings? also told pin hole in muffler? not sure if its the exhaust getting louder ,engine or what is getting louder
    • Ray
      7/5/2013 Ray
      What type of sound is it, where is it coming from, and when does it happen? Are we talking engine speed or vehicle speed? I am assuming the car has to be moving, but you did not state that.
      7/5/2013 kentconn1
      vehicle speed as speed increases it gradually gets louder from inside the car it sounds like exhaust sound but i cant really tell for sure
  • kentconn1
    kentconn1 - 2002 Pontiac Grand Prix - Transmissions & Drivetrains - 7/4/2013
    My car idles quietly but gets louder the faster i go
    was told its the front hub bearings could this be true? any other possibilites? was also told could be pin hole in muffler?
    • Jimm
      7/4/2013 Jimm
      Need more information and details - what gets louder, the engine noise? The wheels or tire nosise? The exhaust noise? Can you please add detail; such as what changes louder or noisier? What conditions does the noise change - engine speed? Vehicle speed?
      7/4/2013 kentconn1
      sounds like its exhaust noise gets loud over 40 mph
      7/4/2013 kentconn1
      i suppose it could be engine noise?
      7/4/2013 kentconn1
      not really a noise i guess just louder
  • janeb1964
    janeb1964 - 2002 Pontiac Grand Prix - Transmissions & Drivetrains - 7/2/2013
    Car starts and runs. can not shift vehicle into any gear.
    • HouseCallAuto
      7/2/2013 HouseCallAuto
      So you are saying that you cannot remove the shifter from park? Your details are not clear. "can not shift vehicle into any gear" has more than one meaning.
      7/2/2013 janeb1964
      yes. the shifter won't budge.i squeeze the button and pull on shifter and it does not move. i do hear a clicking sound.
    • HouseCallAuto
      7/2/2013 HouseCallAuto
      1. Verify there is a good ground on the Orange/Black wire at the shift lock actuator.

      2. Check for power on the dark Green/White wire with the key on until the brake pedal is depressed.

      3. Check the Pink wire for power anytime the key is on.

      4. This wiring is under the console shifter.
      7/4/2013 janeb1964
      thank you. it was just a broken wire.
  • rdwilkinson
    rdwilkinson - 1996 Pontiac Firebird - Transmissions & Drivetrains - 6/15/2013
    Why does car shudder when engaging firs gear?
    Seems to be heat related. This is not a problem when first using the car. But as it heats up, trying to start from first the car needs excessive rpms to go. This does not occur in any other gear. In fact can start from second gear and does not happen. Also is my ...
    0 answer