So I never drive with the AC on, but it got hot as balls this week so I made an exception. Getting on the freeway and getting up to speed I notice the engine rev sounds different. As my brother put it, it sounds like I'm driving a Decepticon. I'm gonna try and get some video of it but does anyone have any idea if this is incredibly abnormal?

Sent from my Super Evo 2D!

you could be low on freon. Its not really good to never use the ac if you know it works. gotta keep stuff circulating. Seals soft etc. As far as the engine noise when the compressor is on the fans should be on. Could be that. Could be the system is low putting a big drag on the engine. Could be a lot of things.

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2000 Silvermist GTP. CAI, 180 t-stat, stage 2 shift kit, u-bend and resonator delete, fastkatt tuned PCM, autolite P104's, 3.4 pulley, altenator wire upgrade.

even if the system is in 100% working order t still puts a load on the engine

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

Mines doing the same thing. I dont think the clutch is working right you put a gauge on it. It'll bury the gauge. Think a sensor maybe im not for sure though.

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02 Chevy Zr2-sl2,2"BL,Mtclassic II's,Flowmasters,duratrak lockers 3.73's gears
97 Dodge avenger-to many to list-Sold
02 Gp Gt- Intake,Gmpp,PCM,3In Dp.