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Old 08-19-2019, 08:01 PM   #6 (permalink)
Diesel Specialist
BrennanK's Avatar
Join Date: Nov 2011
Location: Minneapolis, MN
Posts: 1,349

Definitely something funny going on.

I was in Atlanta this past weekend and I was doing 70-75 unloaded in 95* heat with the AC on and over the 60 miles I drove the fan was on fully engauged over a 1/3 of the time. ECT were around 202 the whole time.

Then today I went to fill up with fuel. Left it idling for the AC after pulling off the highway with the ECT at 198. After pumping fuel in I got in and the ECT was 207 and the AC was almost not cold.

Rather frustrating to have a truck that can't keep itself cool when it's unloaded let alone loaded.
2005 Black GMC Sierra 2500HD SLT - CCSB
AUX Radio Input (iSimple ISGM535) - High Idle Mod - Head Gaskets (June [email protected]) - OEM Cab Lights - LBZ Mouth Piece - All On Headlight Mod - Puddle and Footwell LED's - OEM Towing Mirrors - Uniden BCT15x Scanner - Gauges in Trippin' Overhead mount - Rigid Industries Dually Backup Lights - UC6 radio with LUX amp
-Stock tuning and staying that way

LBZ door badges, Kennedy lift pump, aux CAT filter
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