Please help. Nobody has had an answer for me.

Tiny
INGRAM81
  • MEMBER
  • 2001 CADILLAC DTS
  • 4.6L
  • V8
  • FWD
  • AUTOMATIC
  • 132,129 MILES
2001 Deville DTS. 132,129 miles rebuilt motor, 80, xxx on transmission.

In the mornings on both a hot and cold day when I start my car I put it in drive and it doesn't want to move until almost 2000 rpms. Even giving it a second to fully go into gear it still does it. Once it does start to move it takes a while for it to actually wanna go anywhere. I've replaced the range sensor and filters. Had a fluid flush 3 times. Also when driving down the road with shifter in D position will suddenly downshift to either 1st or 2nd gear. Shift indicator on dash will move to the gear it shifted to. What could be causing this problem? I've been to the best transmission shop around my area. Its giving no codes for anything transmission related, they have hooked it up to a laptop and ran computer testing while driving. Only way to get the vehicle back into drive is to either come to a slow roll around 15-20 mph or neutral shut off restart and pit car back in drive and then it will be fine.
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Tuesday, September 23rd, 2014 AT 6:37 AM

6 Replies

Tiny
HMAC300
  • EXPERT
Kinda sounds like the clutchpak is slipping or a seal bad maybe the trans shop has said that.
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Tuesday, September 23rd, 2014 AT 8:25 AM
Tiny
INGRAM81
  • MEMBER
One car is warmed up it it will go it gear and move right away with out having to go so high in rpms. And when it downshifts if I puty foot to the floor it will shift through all the gears except overdrive. Trans shop said they didn't think it was anything to do with the clutch packs or a seal. They said had to be a sensor or somethinng of the sort. I was thinking maybe the trans fluid pressure switch.
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Tuesday, September 23rd, 2014 AT 8:40 AM
Tiny
HMAC300
  • EXPERT
That should show up on a code if a clutch pak seal is worn when it's cold it slips that is what it sounds like. Especially since you don't have any overdrive
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Tuesday, September 23rd, 2014 AT 12:17 PM
Tiny
INGRAM81
  • MEMBER
Well I do have overdrive. It will go back into overdrive if I shut the car off and turn back on while in neutral. Or when I come to about a 20 mph roll. Then itll shift back into overdrive on its own. But will shift REALLY hard after that. I had my transmission replaced because my last one was doing the same thing. Said my clutch packs were leaking and was cheaper to buy a transmission than it was to have it rebuilt. I got the transmission out of a car that I know drove perfect before pulled as it was my uncles car and got t-boned.
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Tuesday, September 23rd, 2014 AT 12:25 PM
Tiny
HMAC300
  • EXPERT
Dont'know what to tell you other than what I have it may be a short in wiring or a bad battery as well autoparts check those for free
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Tuesday, September 23rd, 2014 AT 12:41 PM
Tiny
INGRAM81
  • MEMBER
Well looks to me as if maybe it could have been the battery. I pulled the seat bottom up and there is 3 inches of water where the battery sits and the terminals are all nasty. I didn't know that could cause that problem to happen. Hopefully once all cleaned up it will fix the problem.
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Tuesday, September 23rd, 2014 AT 1:50 PM

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