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Chevrolet Impala Transmission Problems

184 messages,  Last post on Nov 13, 2009 at 11:24 AM

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#2 of 184 Transmission Problem by gchecksfield Sep 21, 2004 (4:19 pm)
Nosirrahg thanks for Post 910. I was lazy and did not check earlier posts. Turns out the problem on mine is intermittent. Right now running fine. I went to a reputable independent shop. He said the Impala has had problems with the pressure control module. He also said without a check engine light and no symptoms he would not recommend doing anything. Did you get a check engine light? I went to a Chev dealer. The Service Tech said that there were no such problems with the Impala transmission. If anyone knows the number of the technical bulletin I would like to take it to the dealer. Thanks. Replies to this message: nosirrahg (Sep 22, 2004 5:29 am) chevyman12 (Oct 04, 2004 3:05 pm) nosirrahg (Oct 05, 2004 6:17 am) cuff (Nov 21, 2006 9:34 pm) nosirrahg (Nov 21, 2006 9:44 pm) and 2 more... level (Nov 04, 2008 7:50 am) and 9 more...
#3 of 184 Re: Transmission Problem [gchecksfield] by nosirrahg Sep 22, 2004 (5:29 am)
Replying to: gchecksfield (Sep 21, 2004 4:19 pm) I did NOT get a check engine light; just abrupt shifting and a noticeable whine on one particular day. The only other thing I'd noticed prior to that was a tendency to "hunt" for a gear on gradual upgrades, where the transmission couldn't decide whether to stay in OD or shift down to 3rd - that probably started 3-4 months before I had this obvious problem and took it in and got it fixed. Granted, when I drove the car from home to the dealer to get it fixed, it didn't exhibit any problems - I don't know if I could have ignored it and been fine or not; but from the way it sounded earlier that day, I'd have been afraid to drive it anywhere. Replies to this message: chevyman12 (Oct 04, 2004 3:05 pm) nosirrahg (Oct 05, 2004 6:17 am) cuff (Nov 21, 2006 9:34 pm) nosirrahg (Nov 21, 2006 9:44 pm) cuff (Nov 22, 2006 6:27 am) and 1 more... level (Nov 04, 2008 7:50 am) mrcorey985 (Dec 02, 2008 3:53 pm) and 8 more...
#5 of 184 Re: Transmission Problem [nosirrahg] by chevyman12 Oct 04, 2004 (3:05 pm)
Replying to: nosirrahg (Sep 22, 2004 5:29 am) I have experienced the same problem can you tell me what the dealer did to fix it.   thanks Replies to this message: nosirrahg (Oct 05, 2004 6:17 am)
#6 of 184 Re: Transmission Problem [chevyman12] by nosirrahg Oct 05, 2004 (6:17 am)
Replying to: chevyman12 (Oct 04, 2004 3:05 pm) I don't have the invoice handy, but all I remember was they replaced a "PCM" (pressure control module, I think); I want to say the bill ended up being $500. As I recall, the bulk of that expense was for labor.   It really only acted up that one afternoon, but it was severe enough that even though it seemed fine the next day when I took it in, I wanted to get it attended to before it got worse. As I think I mentioned before, I'd noticed some hesitation at times on slight upgrades for several months prior to that, and thus far that also seems to have been corrected by this fix.   Good luck!!

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