2005 Chevy Suburban Tranny Problems

Tiny
JIM AESHLIMAN
  • MEMBER
  • 2005 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 88,000 MILES
At 82000 miles my tranny started slipping in 3rd and 4th gear. I brought it in to a local chevy dealership and they said I needed a new transmission to the tune of $5,000.00 or they could rebuild this one for $2,500.00. I chose the $2,500.00 number. Over a period of about 6 or 7 months I put about 6,000 miles on the truck, approx. 200-250 miles per week on short little runs to the store and stuff. About 1 week ago my wife started driving it to work which is about 50-60 miles away. On the third day of this driving she noticed the tranny slipping again in the 3rd and 4th gear. I brought it back to the dealership and they checked it out and told me that they couldn't get it to slip at first. They took the truck out for a 20 minute run and nothing happened. Then they took it out later for a 40 minute run and that is when the tranny started slipping. They opened it up and noticed filings in the tranny oil pan and that is telling them that the torque converter needs to be replaced, but they will give me a deal and will only charge me $1400.00. My questions to you are as follows:
1: I know the torque converter is in a drum, is this drum sealed so the oil or filings couldn't enter into the rest of the transmission parts?
2: If the torque converter is the problem, wouldn't I also have problems in 1st, 2nd and reverse?
3: If the torque converter is the problem, wouldn't I have problems right away, not only when the tranny warms up?
4: If they rebuilt my tranny wouldn't they automatically install a new torque converter as part of the rebuild?
5: Wouldn't I have metal filings in the oil pan if the 3rd and 4th bands went out again?
Sunday, August 2nd, 2009 AT 8:47 AM

1 Reply

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
Actually for a rebuild at the dealer that should have included the torque converter, when I rebuild them I always replace the torque converter. If the converter has metal in it after driving it all the metal flakes will circuilate back into the trans, and 2 when ever you do a rebuild you have to flush the tranny cooler and lines to remove all the metal fron the system, if you dont you back to square one again.I find it odd that the dealer didnt replace the converter and flush the cooler, it manditory to do so. As far as paying again I would not an go back to the service department and tell them its there mistake and need to correct it, plus a rebuild carries a warranty.
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Sunday, August 2nd, 2009 AT 12:24 PM

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