Happy Hummer
Well-Known Member
- Messages
- 1,465
- Location
- Wisconsin
1st noticed about two weeks ago. This past Saturday drove 220 miles round trip and noticed with defrost mode selected that engine rpm's fluctuate by as much as 100-200 rpm's.
The H3 has never done this before. I have replaced the water pump, radiator and fan clutch within the last 2+ mons.
Just freaking me out because of the parasitic drain on the engine. You can actually feel the engine up cycle down cycle with a/c compressor cycling.
So, is this normal?
If not what would cause this?
As stated never been like this b4...
The H3 has never done this before. I have replaced the water pump, radiator and fan clutch within the last 2+ mons.
Just freaking me out because of the parasitic drain on the engine. You can actually feel the engine up cycle down cycle with a/c compressor cycling.
So, is this normal?
If not what would cause this?
As stated never been like this b4...