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Pontiac Sunfire Transmission Problems

16 messages,  Last post on Sep 02, 2009 at 6:48 PM

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#7 of 16 transmission trouble, shifts gears hard at low speeds & RPMs go way up by driveit3 Jan 17, 2008 (9:58 am)
2001 sunfire, 103000kms. I was returning home from a long trip on the highway doing a constant 110km then the RPMs would go way up unnecessarly ( going up by 500). It would constantly keep doing this , approx every min. So i went to a lower speed same thing. And the car also had less hp, extremely bad going up the hills ! Was getting passed by transfer trucks! BUT , when i brought the car into a GM dealership they could not find anything wrong. I picked the car up and it worked fine, until a week went by then it happened again. Brought it back to the dealership, 6 hours later I get a call the car is working fine they couldn't find anything wrong with it. I'm wondering if every time i bring the car in the techs at the garage reset the computer on the car,....because they can not find any error codes. SUNcrape. ANY ONE ELSE THIS HAPPEN TO >>>>> help Replies to this message: pontiacsucks (Feb 22, 2008 12:40 am) driveit3 (Mar 03, 2008 2:29 pm)
#8 of 16 Re: transmission trouble, shifts gears hard at low speeds & RPMs go way up [driveit3] by pontiacsucks Feb 22, 2008 (12:40 am)
Replying to: driveit3 (Jan 17, 2008 9:58 am) My son's car (2000 Sunfire) had similiar problem. Went on for about a year and finally wouldn't shift out of 1st. $2450 later (transmission repair) and $900 in 2 other repairs which left us stranded on the road (instrument cluster and ignition switch), we are selling the car. I would give you the same advice! Replies to this message: driveit3 (Mar 03, 2008 2:29 pm)
#9 of 16 Re: transmission trouble, shifts gears hard at low speeds & RPMs go way u by driveit3 Mar 03, 2008 (2:29 pm)
Replying to: pontiacsucks (Feb 22, 2008 12:40 am) Thanks for the response. I was planning on selling the car any way this fall. Now i am certainly am going to sell IT. Pontiac Sunfire sucks!
#10 of 16 5-Speed rev'ing after shift by slackerman Apr 23, 2008 (5:32 pm)
My 1996 Pontiac Sunfire (2.4L, 5-Speed manual, 127,000 miles) has developed what feels like a slipping clutch, but is not. After driving the car 10 miles, shutting it off for 20 minutes, and then starting out again, I can shift from 1st to 2nd, or 2nd to 3rd, and the engine will rev as if it is in neutral before catching and slowly accelerating. Anyone else have this problem? I've had a trustworthy garage check the clutch without result. Could this be some sensor or an electrical issue? Any ideas? I love this car and don't want to give it up! Replies to this message: slackerman (Feb 17, 2009 4:26 pm)
#11 of 16 by msokol87 Oct 22, 2008 (1:31 pm)
I had to replace the transmission in my 2000 sunfire coupe not shortly after I purchased it at the beginning of this year. However, not too long after it was supposedly "fixed", I noticed a grinding between 1000-2000 RPM, between 35 to 40 MPH. This has been going on since May. The car never had any pick-up and go, but this all changed significantly when the transmission was fixed. Nevertheless, I still feel and hear the grinding, in spite of the fact that everyone I've asked to drive/simply be a passenger and listen has not felt/heard anything. One of my previous cars died from transmission problems so I do know what I'm talking about. The question is this: what part could it be that needs fixed? I only experience this one problem. Has anyone else out there got the same grinding in that gear? Replies to this message: Too2fast4u (Dec 19, 2008 2:37 pm)
#12 of 16 Re: [msokol87] by Too2fast4u Dec 19, 2008 (2:37 pm)
Replying to: msokol87 (Oct 22, 2008 1:31 pm) i guess where talking about an auto tranny here. if it was replaced and started grinding , i would take it back to where it was fixed , should be under some type of warrenty. The pick up and go sounds like a torque converter prob, but could also be a bad transmission, if this is a manual tranny i would say you have some ring gear problems which will just get worse over time..
#13 of 16 Re: 5-Speed rev'ing after shift [slackerman] by slackerman Feb 17, 2009 (4:26 pm)
Replying to: slackerman (Apr 23, 2008 5:32 pm) The problem was the ignition coil.
#14 of 16 transmission switch by corey96 Apr 05, 2009 (12:10 pm)
i have a 96 sunfire gt and it has a automatic transmission and i was planning to switch it to a 5-speed would it b cheaper and/ or eassier to buy a whole new transmission or take one outta a old car?
#15 of 16 transmission problems by shanej07 Aug 11, 2009 (5:52 pm)
My 2001 pontiac sunfire will not shift into overdrive. The previous owners replaced the transmission, and it still will not shift into overdrive. It tops out around 50 mph at 4k-5k rpm. If anyone can help me diagnose this problem i would greatly appreciate it.
#16 of 16 '99 sunfire by bwoch75 Sep 02, 2009 (6:48 pm)
So my '99 Sunfire was leaking tranny fluid and coolant. We checked to see if I blew a head gasket but there was no coolant in the oil. We changed the radiator and now my check engine light is on and if shifts really hard. There is also tranny #2 in the car. Anyone have any advice on what I should do/change??

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