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Ok, that might explain why they said that at the dealership.... as far as towing, it's pretty consistent under heavier load (uphill, warm weather) but doesn't drop much otherwise. I was thinking a larger capacity pan with the new gears. Just replaced both oil and tranny cooling lines, had everything checked and looked good. This was done at my normal garage, not the dealership.
Fixed it for you.
Thanks! Swathdiver commented the dealership may have been thinking of a different trans... I had both sets of cooling lines replaced, mechanic said the cooler looked good, but I may start looking at an upgrade. The pan isn't terrible, about $300, and with my buddy we can do it.
Standard procedure for salespeople..
All I could find, I think FL might be a fleet specification..
Thanks for the correction. More details, please, so I can get learned?
The K2s with the 6L80 and transmission thermostat have a different cooling system for the transmission. Their fluid goes into the cooler built into the top of the AC condenser and back to the trans. Because the fluid doesn't get preheated anymore like the old way of first going into the radiator, a thermostat was used as its substitute.
Liking this would be damning it with faint praise. It deserves the 'Helpful' Check mark.
Hmm, interesting. This is a fleet designation but I thought it was reserved to Suburbans. I see now he doesn't have 5W4 nor the wiring options, so I stand corrected!
Well I do not see the RPO Code 5W4 so it would not be an SSV? Now I am confused as I thought all the police 4x4's were SSV's?
All I know for sure is that it was a Homeland Security truck out of Texas, according to the paperwork from the previous owner that bought it at govt auction. No radio counsel, spot lights or warning lights ever installed, no evidence of plugged antenna holes anywhere.
| GAM= Vehicle Government (GSA Sales) so it's a US Government vehicle ordered by the General Services Administration and probably an admin fleet Tahoe since you don't have a 5W4 RPO code. | VEHICLE GOVERNMENT (G.S.A. SALES) |
Thank you!!
In addition to @opfor2 information provided, the VIN also gives it away. The 5-6 positions are K4 and not K2. The latter is for a 4x4 Police Tahoe. The former is a 4x4 Government Fleet vehicle.
The police package is nice. It is most likely the Daytime Running Lights have already been deactivated so you don't have to bother with that. Engine stop-start will also be deactivated so that'll save you another hundred dollars on the gadget that does that.
Yes, the DRL's are deleted... besides changing out the gears, maybe the torque converter, I'm almost done with getting it where I want it to be!
More trans fluid probably wouldn't hurt, but an additional trans cooler definitely does the trick it is pretty easy to do if you already have the auxiliary trans cooler especially.
That's what I'm thinking. If I'm going to swap the gears, might as well do a new pan and add the cooler.
Howdy neighbor! Chapel Hill here... Im at 160k, runs like new after all the work done. Not in search of more HP, but need to drop the trans temp when towing. Otherwise she's perfect!This 6L80 and 5.3 (DoD deleted but hardware still inside) has 276k miles.
And welcome, neighbor. I work in Orange County, live in Mebane....
