Transmission Overheating?
Thread Starter
Race Director
Joined: Oct 2004
Posts: 18,401
Likes: 3
From: Retired but working
Cruise-In VI Veteran
Transmission Overheating?
Long drive from Texas to Ohio. Engine heat running 194 -205 with average of 199 to 201 with AC on.
Tranny flushed and filled 10,000 miles ago.
Tranny A4 runs 187 -205, but before when climbing hills (outside air 98+) temp would go to 201 -205 then drop back down to 194 or so, almost in line with engine temp. Now it goes slowly to 201 and stays there. Is this to hot? Having rad flushed and filled and tranny oil level checked. Cleaned rad and condenser out yesterday and got out minimal crud.
Any ideas?
thanks in advance.
Jim
Tranny flushed and filled 10,000 miles ago.
Tranny A4 runs 187 -205, but before when climbing hills (outside air 98+) temp would go to 201 -205 then drop back down to 194 or so, almost in line with engine temp. Now it goes slowly to 201 and stays there. Is this to hot? Having rad flushed and filled and tranny oil level checked. Cleaned rad and condenser out yesterday and got out minimal crud.
Any ideas?
thanks in advance.
Jim
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
205 is nothing. I was heading back from my friends place over the weekend and got caught in some nasty traffic. It was 105 degrees outside and the trans temp hit 237 degrees.
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Anything over 200 causes premature wear and the higher the temp the more wear... You may need an additional tranny cooler... This info came from Rodney at RPM transmission.. Hes the tranny guy on this forum and knows the 4L60e as well as anyone in the business. My 99 A4 ran 210-220 in the summer time.. It went south on me at around 40k miles
Last edited by David426; Jul 21, 2010 at 05:59 PM.
Thread Starter
Race Director
Joined: Oct 2004
Posts: 18,401
Likes: 3
From: Retired but working
Cruise-In VI Veteran
Having the coolant drained flushed and replaced and having the tranny flushed. Added a cooler and Had the tranny done 15k ago just to be on the safe side will get it done again. Off to PA for 6 months and don't want any trouble while on the road. Get a bit paranoid when the tranny gets up to 200 as it has always run max 185 or so. The temps up here are pretty warm this year.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Pro
Joined: Sep 2008
Posts: 660
Likes: 17
From: Tustin California
Put in "trans cooler" under search and go back several months for threads. I put a B&M under the drivers headlight. It works great. Figure about $500.00 for everything. You will have to fab up simple brackets and go to several different places to get what you need for a clean install. I'm FI so I could not put in front of the radiator. If you are going to boost your vette later then I suggest under the drivers headlight. Just make sure you triple check for clearance when the headlight retracts. Good Luck! Rod
Pro
Joined: Nov 2005
Posts: 626
Likes: 0
From: Fresno CA
you spent $500 on a trans cooler? One of the biggest B&M coolers is $177 with fittings and ss hose. What all did you buy?
Pro
Joined: Oct 2001
Posts: 668
Likes: 26
From: Wadsworth Ohio
I had a RPM transmission put in this summer and RPM recommended a B&M cooler with the fan on it. This keeps the trans fluid about 20 degrees cooler than the water temp reguardless of out side temp. The RPM transmission is outstanding I just love it.
Pro
Joined: Sep 2008
Posts: 660
Likes: 17
From: Tustin California
If you can buy a B&M supercooler #70297, 14 feet of braided line, all the proper fittings, adapters, wiring, loom material, and brackets and bolts for less than $200, then my hats off to you! Don't forget tax and shipping. Rod
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Plus insulation costs or your time to install. that is up to if not over $500 total
