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#1
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Slipping Tranny... Torque Converter???
Here's exactly how it happened... COLD Start up on a COLD night (-10 C), car won't move in reverse without revving high (I backed into the driveway off the street to warm up). Once the engine came down to 750 rpm, I took off and everything seemed normal. Everything normal for about 5 miles/10 minutes in the city then into the country. Then as I was accelerating out of a turn the tranny seemed to down shift way too easily... I press the pedal (not hard enough to down shift normally) and it down shifts and revs high. I make it to my buddy's house, when I went to go in reverse to parallel park it took high revs to move again. I added the 1.5 quarts of fluid I had on hand. No change in performance and it won't move in drive either. I don't know what the level was before because the dip stick (since the tranny was replaced) never seemed to read correct, even the tranny guy was confused on it.
I went in the house and didn't come back to the car for at least 6 hours. It was obviously stone cold again at start up, ambient temp about the same. Thing acted normal for about the same distance and time on the way home the started acting up exactly the same way again. I parked the car on the street and didn't come back to it for at least 3 days. Ambient roughly the same, Start up and head to the same place as before. I make it half as far and now it's really puking! I need to rev it even harder in forward or reverse to make it move. I limp home and take my Jeep from then on. The only time since then I've moved the car was to get it off the street for the snow storm. Stone cold it tool high revs to move it in either direction. I think it is the torque converter because the tranny shifts fine once I get up to speed... I just takes LOTS of revvs to get there. My logic is: it is taking waaaaay too much input to the tranny to get the desired output. Once the output of the tranny reaches the required speed per the shift linkage position shift point it will shift fine.
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1984 190D 2.2 Auto 220k 2001 Jeep Cherokee Sport 70K 2004 Lexus RX-330 ??K 2005 Chrylser Crossfire LTD 6K Play guitar? Go to www.cyberfret.com for free online lessons! |
#2
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Bump
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1984 190D 2.2 Auto 220k 2001 Jeep Cherokee Sport 70K 2004 Lexus RX-330 ??K 2005 Chrylser Crossfire LTD 6K Play guitar? Go to www.cyberfret.com for free online lessons! |
#3
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sounds like the torque converter could be a real possibility, maybe ur clutches are stripped?
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82' 300SD |
#4
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Well I don't think that drive and reverse would go bad at the same time... Last time the tranny took a **** on me only drive blew up and reverse worked.
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1984 190D 2.2 Auto 220k 2001 Jeep Cherokee Sport 70K 2004 Lexus RX-330 ??K 2005 Chrylser Crossfire LTD 6K Play guitar? Go to www.cyberfret.com for free online lessons! |
#5
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did u say that you just had it rebuilt?
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82' 300SD |
#6
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I think
That the primary problem is in the front pump. Low on oil and on a cold night and you can eat a front pump real quick. The front pump is really the heart of all these automatics. The convertor usually has some fluid in it and is really only a fluid clutch with a reduction in gearing when necessary. But when the front pump is gone it has no means the hook up with the gearing in the transmission, either forward gears or reverse. I would say you should look for a good used tranmission and when you replace it, also put in a rebuilt or new convertor.
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Junqueyardjim Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis 1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA 2003 Jaguar Type X, AWD. beautiful, good mileage, Mom's car, but I won't let her drive it! |
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