Normal Transmission Temperature?
I own a 2004 2500HD Silverado with the 6.0 gas engine. They must have run out of the correct instrument clusters while mine was on the line, so I was blessed with a transmission temperature dummy lig...
Forum Discussion
By popular request, here is that outdated chart from the 70's:
Nomad, I have the same 4L80E in the Suburban. Running empty in cool weather, temp is about 150, will get to 175 or so when towing and won't get any hotter than 200 when pulling a long hill with the 8500 lb trailer in the summertime.
You likely have GM Dexron III fluid in the transmission. Around 05 GM retired Dex III and replaced it with Dexron VI, which is a full synthetic fluid and backwards compatible with all transmissions that used Dex III. If you drop the pan and change the filter, I would recommend refilling with Dex VI.
I believe you are thinking of Ford gauges, many have reported them to be glorified idiot lights.
Nomad, I have the same 4L80E in the Suburban. Running empty in cool weather, temp is about 150, will get to 175 or so when towing and won't get any hotter than 200 when pulling a long hill with the 8500 lb trailer in the summertime.
You likely have GM Dexron III fluid in the transmission. Around 05 GM retired Dex III and replaced it with Dexron VI, which is a full synthetic fluid and backwards compatible with all transmissions that used Dex III. If you drop the pan and change the filter, I would recommend refilling with Dex VI.
SteveB wrote:
I remember reading somewhere that the GM gauges were really "idiot gauges" in that they give the impression of a gauge but with maybe 3 or 4 positions for the needle.
I believe you are thinking of Ford gauges, many have reported them to be glorified idiot lights.
