Guest breather Posted August 17, 2012 Share Posted August 17, 2012 I have a 1990 Reatta with approx 99k miles on it. In the morning when the trans is cold. it will go in gear and not shift into next gear. After revving a little, it will go into the next gear and run fine for the rest of the day. If I put a can of Seafoam Trans Tune in it, it will shift fine for a few days.I would hate to have to put another tranny in it if It isn't necessary. Could it be a shift modulator or vacuum modulator problem? Any ideas would be appreciated. Also am looking for the passenger door outside moulding. The Reatta is Black.Thanks for your reply in advance. Link to comment Share on other sites More sharing options...
Guest waxbgone Posted August 17, 2012 Share Posted August 17, 2012 Three of my four Reattas had the same problem. I anxiously await the answer. I always thought it was a sticky pressure regulator valve, and Seafoam is a (temporary) fix. Link to comment Share on other sites More sharing options...
padgett Posted August 17, 2012 Share Posted August 17, 2012 Did you try replacing the fluid and filter then adding the SeaFoam ? Link to comment Share on other sites More sharing options...
Guest RaverReatta Posted August 18, 2012 Share Posted August 18, 2012 Heat and cool expand and contract things. The parts inside your transmission may just be worn down enough that when they are cool they don't "grab". After a car warms up all its' little parts do as well. Could be time for a rebuild or repair, or could be just a good idea to let it idle and warm up (good to do in cold weather anyway), and rev the engine a few times like you said. Link to comment Share on other sites More sharing options...
DAVES89 Posted August 18, 2012 Share Posted August 18, 2012 My Black does it when it is "winter" cold. Had the tranny flushed. Now I fire it up, back out of garage, sit in the driveway [in reverse] for 10-20 seconds, finish backing out of the driveway, then drive away a little aggresively, shifts great. Only issue I ever had was 1st into 2nd. Link to comment Share on other sites More sharing options...
Booreatta Posted August 18, 2012 Share Posted August 18, 2012 Mine seems to shift a bit early from 1st to second. It dont seem to have much of an impact on the trany but its just not right. Will changing the fluid help that? I have never changed it and it has 65,000 milesNever gave it a lot of thoughtChuck Kerlsboodreatta@cox.net Link to comment Share on other sites More sharing options...
Ronnie Posted August 18, 2012 Share Posted August 18, 2012 Mine seems to shift a bit early from 1st to second. It dont seem to have much of an impact on the trany but its just not right. Will changing the fluid help that? I have never changed it and it has 65,000 milesNever gave it a lot of thoughtChuck Kerlsboodreatta@cox.netAdjusting the throttle valve cable should help that. Link to comment Share on other sites More sharing options...
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