Hey Guys. We are working with a unique project and would like to resolve our charging system issues. The vehicle is a 2007 Tahoe LTZ SUV with a GM LS7 7.0L engine and GM 4L80E transmission.
First of all, see our most recent attached tune file...
We have had the OEM 07 Tahoe PCM & TCM flashed with a new VIN for a vehicle with a 4L80E transmission, for proper operation.
We are having an issue with the fan system. The vehicle has a dual fan system factory. The fans are setup to come on at 100% at the lowest temperature setting possible. We would like BOTH fans to run 100% at all times once the coolant reaches this temperature, all the way up the scale. We have this set properly it seems, but the fans do not respond to our new settings... Any idea why? How do we fix this issue?
I appreciate everyone's help... Please advise.