Ha! You were right, and you'd never guess what the real problem was after all that. A bad ground wire! They (local GM dealership) said there is a GM tech bulletin on it, but I didn't get the #. $110 bill from the dealership, and I'm back to a great shifting tranny!!
Can you believe it was so simple! AND the dealer was honest about it! I should've bought a lottery ticket that day! Thanks for the help. Mike RMilkiewicz wrote: > Well Mike, this is what I found out. It's not a torque converter problem. > That's the good news. The bad news is it could be any of a number of things. > And unless you know something about that trans you may have to take it in to > someone. > Back in 1996 we had a problem with a supplier who made the "O" rings for the > accumulator valve piston. These rings were allowing fluid to get past the > pistons in the valve and this would cause a 4th gear problem. 3 to 4. > If the guy who rebuilt the trans nicked an "O" ring replacing them this > would cause it also. There are 2 pistons. It could be the valve body. You > may have the 2-3 valve sticking or the 3 - 4 valve. He may have left a ball > out or put it in the wrong hole in the valve body. > It could be the over run clutch piston leaking. The 2 selinoids you refer to > are really called "A" and "B". They have a small "O" ring on them also. They > may be cracked. > It could be your lock up not coming on when it should. To test that, drive > the car in 4th then shift to 3rd. Your RPM should go up immedieately. With > in a second or two. There is no truth to the torque converter blowing up and > fragging your trans. The turbine blades are brazed solid. The sprag is solid > except for some roller bearings. This may not be much help to you as you > will still have to pop for a guy to look at it. But at least you won't waste > any money on a torque converter you don't need. The guy I talked to has this > same truck as you. He loves it. He has over 10 years as a mech. in our > quality garage. > Rich > ----- Original Message ----- > From: "Michael Pell" <[EMAIL PROTECTED]> > To: "RMilkiewicz" <[EMAIL PROTECTED]> > Sent: Friday, April 02, 2004 11:37 AM > Subject: Re: [Chevelle-list] OT: "NEW" torque converters > > > Oops, forgot that part. > > > > 96 Chevy C3500 with 454 89,000 miles > > > > Thanks! > > > > RMilkiewicz wrote: > > > > > Mike, what truck do you have? I'll take this info to work and talk to a > > > garage mech. tonight. > > > ----- Original Message ----- > > > From: "Michael Pell" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]>; "ChevelleList" > <[EMAIL PROTECTED]> > > > Sent: Friday, April 02, 2004 11:15 AM > > > Subject: Re: [Chevelle-list] OT: "NEW" torque converters > > > > > > > Awesome, I was hoping to find someone like you. :-) > > > > > > > > I was told by a tranny guy (owned a trans repair shop) that most of > the > > > remans > > > > are not of good quality, and will only last about 15k miles, and that > if > > > one > > > > goes bad, all the debris from the converter is disbursed throughout > the > > > > transmission, thus, requiring a full rebuild. > > > > He's no longer in the business, so he doesn't have anything to gain > from > > > giving > > > > me a false story. > > > > > > > > Here's my problem: Busy 3-4 shift. Bulletin No 77-71-77 seems to > > > describe it > > > > well. > > > > The 3-4 shift (or into OD, I'm not sure now) can take 4-5 seconds > during > > > cold > > > > weather, the colder it is outside, and the colder the trans is, the > worse > > > the > > > > problem seems to be. And it's not uncommon for me to watch the tach > > > remain > > > > stationary while the MPH increases. > > > > > > > > I just changed the fluid and filter. Both were very clean, no > converter > > > looking > > > > debris in the filter. > > > > > > > > I did have a problem code that indicated torque converter or the TCS. > And > > > at > > > > that time, I had 1 day where it wouldn't go into overdrive at all. > Since > > > I > > > > changed the fluid and filter, and reset, no codes have shown. I > intened > > > to > > > > replace the TCS, but Advance Auto gave me the wrong part. Doh! > > > > > > > > First thing I think I'd like to do is replace the TCS. And maybe the > 3-4 > > > shift > > > > solenoid. > > > > However, I've not yet located a TCS (Autozone, Napa, Parts America, GM > > > Parts > > > > counter is next on my list), and I'm not sure which of the 2 switches > is > > > the 3-4 > > > > switch (both look identical to me). > > > > > > > > If that doesn't fix the problem, then I'm thinking the converter is > bad. > > > > > > > > Previous owner said the trans had a full rebuild and new converter > about > > > 15 > > > > miles ago. Again, the trans fluid looked brand new. > > > > I've had the truck for about 1500 miles now. > > > > > > > > If I end up replacing the converter, do I need to replace anything > else? > > > Or can > > > > I just swap the converter and fluild/filter, and go on? > > > > > > > > Do you believe the reman converters are as good as a new one? Do they > > > really > > > > only last 15k miles? > > > > Any suggestions for a company? I've talked with a guy at CSI, he > claims > > > they > > > > are a high-end company as far as quality goes. $250. > > > > > > > > Any suggestions or advice is greatly appreciated! > > > > Thank you very much! > > > > Mike > > > > > > > > > > > > RMilkiewicz wrote: > > > > > > > > > I work at Hydra-Matic. I build the 4L80-E. These converters could be > a > > > > > reman. But we also ship new service converters. The converter is one > of > > > my > > > > > departments and we have a service schedule we have to make for the > > > dealers. > > > > > Even if you get a reman, it's done by a company we use. Insist on a > new > > > one > > > > > if that's what you want. He can order it from us if he doesn't have > one > > > on > > > > > hand or get one from another dealer. But why pay the extra money for > new > > > > > when a reman is just as good and it's cheaper. > > > > > Rich > > > > > ----- Original Message ----- > > > > > From: "Michael Pell" <[EMAIL PROTECTED]> > > > > > To: "The Chevelle Mailing List" <[EMAIL PROTECTED]> > > > > > Sent: Friday, April 02, 2004 9:14 AM > > > > > Subject: Re: [Chevelle-list] OT: "NEW" torque converters > > > > > > > > > > > I've been told they are all remans...... And I don't trust the > guys > > > > > behind > > > > > > the counter to know for sure. > > > > > > Anyone on this working for GM Parts? Can you confirm this? > > > > > > > > > > > > Thanks Bill! But neither carry these converters. > > > > > > > > > > > > Mike > > > > > > > > > > > > Dale McIntosh wrote: > > > > > > > > > > > > > Let's see...your friendly Chevrolet dealer? > > > > > > > > > > > > > > Dale McIntosh > > > > > > > > > > > > > > I've stopped 4,365 spam messages. You can too! > > > > > > > One month FREE spam protection at > > > http://www.cloudmark.com/spamnetsig/ > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > From: [EMAIL PROTECTED] > > > > > > > > [mailto:[EMAIL PROTECTED] On Behalf Of > Michael > > > Pell > > > > > > > > Sent: Thursday, April 01, 2004 8:58 PM > > > > > > > > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; > > > ChevelleList > > > > > > > > Subject: [Chevelle-list] OT: "NEW" torque converters > > > > > > > > > > > > > > > > Anyone know where I can get a brand new (not remanufactured) > > > > > > > > torque converter > > > > > > > > for my 96 Chevy Dually (4L80e trans)? > > > > > > > > A stock replacement item would be fine. > > > > > > > > > > > > > > > > Thanks, > > > > > > > > Mike > > > > > > > > > > > > > > > > -- > > > > > > > > Check out my webpage at http://www.ProStreetCar.com > > > > > > > > TREMEC Distributor at http://www.5speedTransmissions.com > > > > > > > > Team Chevelle member #1778 (Gold), ACES member #1377 > > > > > > > > Hoosier State Chevelle Assoc (www.IndianaChevelles.com) #6 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > Check out my webpage at http://www.ProStreetCar.com > > > > > > TREMEC Distributor at http://www.5speedTransmissions.com > > > > > > Team Chevelle member #1778 (Gold), ACES member #1377 > > > > > > Hoosier State Chevelle Assoc (www.IndianaChevelles.com) #6 > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > Check out my webpage at http://www.ProStreetCar.com > > > > TREMEC Distributor at http://www.5speedTransmissions.com > > > > Team Chevelle member #1778 (Gold), ACES member #1377 > > > > Hoosier State Chevelle Assoc (www.IndianaChevelles.com) #6 > > > > > > > > > > > > -- > > Check out my webpage at http://www.ProStreetCar.com > > TREMEC Distributor at http://www.5speedTransmissions.com > > Team Chevelle member #1778 (Gold), ACES member #1377 > > Hoosier State Chevelle Assoc (www.IndianaChevelles.com) #6 > > > > > > -- Check out my webpage at http://www.ProStreetCar.com TREMEC Distributor at http://www.5speedTransmissions.com Team Chevelle member #1778 (Gold), ACES member #1377 Hoosier State Chevelle Assoc (www.IndianaChevelles.com) #6
