A/C acting weird>>>

[babytahoe]

With the a/c on,sometimes it makes a weird noise from the upper dash area (like a fluttering noise) and will stay there if i hold the throttle at a certain point. Also the a/c will not blow as hard when i am accelerating say from a light or to pass someone. When i let off the gas,it blows harder. Any ideas? Thanks:)

[T Man]

year make and model

[Mikz86TA]

On WOT (wide-open-throttle) the compressor disengages, which will make it not blow cool. I think the cool air density makes it seem like its blowing more. Check for leaves in the cowl on th noise.

[babytahoe]

year make and model
that would help,right??

1994 S10 Blazer 4.3

[babytahoe]

On WOT (wide-open-throttle) the compressor disengages, which will make it not blow cool. I think the cool air density makes it seem like its blowing more. Check for leaves in the cowl on th noise.

Thanks...definately NOT leaves....like the "mode" door getting stuck?? Like i said,i can "hold" the noise at a certain throttle point but goes away when letting off.

[89VORTEC]

Check your vacuum source to the interior. Could have a cracked vac hose.

cpi motor check line tees behind plenum. tbi motor, check line tees near ac accumulator (silver cylinder).

Also might wanna check the vacuum servos to the right of the gas pedal and make sure no lines fell off.