Trying to diagnose and get a game plan for my 1994 Suburban K2500 with rear heat and air AC issues.
Can someone walk me theu what the problem could be before I tear into this thing and make it new?
Front low pressure lines are cold and evaporator is making water.
3 lines coming out of compressor. 2 larger low side lines. One goes to front evaporator and one goes to the rear evaporator. Line going to front into dryer is cold. Line going to rear is not cold.
Just after I start truck, low side line coming out of compressor going to dryer get cold. Temps get cold out of the front vents. It gets down into the 30s. I rev up the motor to 2000rpm, I can hear compressor cycling, but temps continuously warm up coming out of front vents.
Rear vents not getting cold.
Front vents climb into the 70s while compressor is cycling. Temps never make it back down into 30s.
Any help figuring this out is greatly appreciated.
Can someone walk me theu what the problem could be before I tear into this thing and make it new?
Front low pressure lines are cold and evaporator is making water.
3 lines coming out of compressor. 2 larger low side lines. One goes to front evaporator and one goes to the rear evaporator. Line going to front into dryer is cold. Line going to rear is not cold.
Just after I start truck, low side line coming out of compressor going to dryer get cold. Temps get cold out of the front vents. It gets down into the 30s. I rev up the motor to 2000rpm, I can hear compressor cycling, but temps continuously warm up coming out of front vents.
Rear vents not getting cold.
Front vents climb into the 70s while compressor is cycling. Temps never make it back down into 30s.
Any help figuring this out is greatly appreciated.