My car seems to kinda buck almost like its missing but only dose it when the defrost is on it dose it sometimes at idle and even just driving down the road..I was thinking maybe iac..
My car seems to kinda buck almost like its missing but only dose it when the defrost is on it dose it sometimes at idle and even just driving down the road..I was thinking maybe iac..
Sounds like the AC compressor cycling to me.
With the eng on and set up the same open your hood and watch the AC clutch, it the stumble happens when the clutch engages you have found the cause. This is normal operation.
My car seems to kinda buck almost like its missing but only dose it when the defrost is on it dose it sometimes at idle and even just driving down the road..I was thinking maybe iac..
by defrost do you mean the rear window defrost, as in the button to the left of the steering wheel? cuz that would have nothing to do with the compressor... but I also have no idea why using it would cause stumbling
I know that the ac and defrost put a pull on the motor but..When i had my ac on when it was hot i never really felt the pull at all..I hope mike might chime in see what the master has to say..