Electrical issues....

[clinebarger]

Originally Posted by sandking

The volt gauge is pegged. All other gauges good, battery and alt are good.

Stepper motor for the volt gauge is bad....Rebuild or replace cluster.

Originally Posted by sandking

The stereo/navigation and dash lites stay on when you turn the ign off and with the key out and the driver door open, but if you open the rear door, they turn off. Sometimes it works with the driver door as it is supposed to.

Door ajar switch in the latch is sticking

Originally Posted by sandking

Last night, the heater would not turn on untill the truck was in drive. In park, no air blowing.

Can you duplicate that over & over? The park/drive thing could be a coinsedence, Check for burned/melted connectors on the blower motor & blower motor resister pack