TC and/or Transmission Problems!! Help?
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From: Springdale AR
TC and/or Transmission Problems!! Help?
Tonight while driving 80 mph down the freeway in my automatic, I felt a bizarre 'shift' sensation from the drivetrain accompanied by the 'check engine' light. I pulled off the freeway to stop the car, so I could see how it felt going through the gears. I accelerated normally, and the shifts were incredibly rough -- like the TC was locked in the cruise mode. I'll be taking it into the dealer tomorrow, but wondered if anyone out there has had any similar experience.
PS I put the 3.42s in about 500 miles ago, and I have been slightly more aggressive than normal; but not abusive. :confused:
PS I put the 3.42s in about 500 miles ago, and I have been slightly more aggressive than normal; but not abusive. :confused:
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From: Murphy TX
Cruise-In II Veteran
Re: TC and/or Transmission Problems!! Help? (daesoph)
My money would be on having thrown a slip code. When it sets the TCC unlocks (your "shift"?) and max line pressure is commanded (making for very firm shifts.) Check your codes.
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From: Cleveland OH
Re: TC and/or Transmission Problems!! Help? (ToplessTexan)
My money would be on having thrown a slip code. When it sets the TCC unlocks (your "shift"?) and max line pressure is commanded (making for very firm shifts.) Check your codes.
Wow ... that sucks ... it has never happened to me ...
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From: Springdale AR
Re: TC and/or Transmission Problems!! Help? (ToplessTexan)
Thanks for the response. How do I check my codes? This is my first 'check engine' issue. I suppose I could pull out my owners manual... :lol:
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From: belleville n.j.
Re: TC and/or Transmission Problems!! Help? (daesoph)
the code should be P1870 and you should only get this code in the highway. normal around the town cruising should never give you this code. everytime you jump into the highway you will have to clear this code manually if you don't get your car tuned to the gears. have your DIC cleared. then hold "options" while you hit "fuel" three times. you will see it go into the diagnostic mode. hit "option" one more time and it will go into manual diagnostic. hit "option" again and clear the codes with "reset"
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: TC and/or Transmission Problems!! Help? (daesoph)
Your dealer won't warranty this because of the GEARS. Listen to the above post. Go get the car programmed!!!!!! I had the same problem, when the hard shifts come in hang on man is it hard. Superchips makes an affordable program that works quite well. :yesnod:
Bob
Bob
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From: Murphy TX
Cruise-In II Veteran
Re: TC and/or Transmission Problems!! Help? (robsvette)
the code should be P1870 and you should only get this code in the highway. normal around the town cruising should never give you this code.
Code inspection via the DIC is written up in the C5 FAQ too. :)
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Instructor
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From: Springdale AR
Re: TC and/or Transmission Problems!! Help? (Buckmaster)
After reading many posts here, I opted for the 3.42s, and had the dealer reprogram to the 3.15 setting. I had read that was a slick way to go...
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Drifting
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From: Shelton CT
Cruise-In II Veteran
Re: TC and/or Transmission Problems!! Help? (daesoph)
Hi there,
It is absolutely CRITICAL that you reprogram the PCM accordingly.
The harsh shifts are due to maximum line pressure, which is demanded when the code sets.
This means maximum hydraulic pressure. This is fine for a default mechanism, however, should NOT be accepted.
Internal transmission failure could be cause if this situation is NOT corrected.
Besttoyou, c4c5 :chevy
It is absolutely CRITICAL that you reprogram the PCM accordingly.
The harsh shifts are due to maximum line pressure, which is demanded when the code sets.
This means maximum hydraulic pressure. This is fine for a default mechanism, however, should NOT be accepted.
Internal transmission failure could be cause if this situation is NOT corrected.
Besttoyou, c4c5 :chevy
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From: Murphy TX
Cruise-In II Veteran
Re: TC and/or Transmission Problems!! Help? (daesoph)
After reading many posts here, I opted for the 3.42s, and had the dealer reprogram to the 3.15 setting. I had read that was a slick way to go...
Instructor
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From: Greeley CO
Re: TC and/or Transmission Problems!! Help? (c4c5specialist)
This answers my question in a seperate post also as I am getting this code after the 3.42's and the Yank 3000. So guess now I just need to keep waiting for Steve Cole to finish my re-program. Does anyone know if he can be bribed to get it to me faster? ;)
