Car bogs when A.C. turns on???
 

My friends 97' stang has a problem when he turns the ac on. If the car is idlng it will shake harshly when the ac kicks on or when he's on the road it kinda jerks. What can it be? Someone said it might be low freon but I don't see how freon would do that.

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67'fastback-Edelbrock carb,intake,cam,valve springs.Rhode lifters, CompCam rocker arms, windage tray,cerama coated headers,dual flows with H-pipe, modded c-4,tci stall converter,perma cool electric fan,aluminum water pump,griffen aluminum radiator,accel 8.8 cable,wide cap distriburator,magnetic pick up,v-matic hurst shifter,edelbrock performer nitrous, carter electric fuel pump,ignitor coil,solid motor mounts,magna racing suspension,poly urathane bushings,under rider traction bars, comp. eng. s

Try replacing the serpentine belt; it may be loose or slipping a bit and when the A/C compressor kicks on, the slack is abruptly taken up and you get the jerking and/or shaking. Worth a try and won't do any harm.

If that isn't the problem, it could be in the compressor itself, but do the easy stuff first.

same as mr 5.0 said....