AC AND HEAT DRIVING PROBLEM, PLEASE HELP!!!!!

[93SHOMTX]

hey guys, ive had this problem for a while now, but its really starting to get to me, when driving if i turn the heat on, or the air on it puts a huge drag on the car, if im at idle it drops about 500 rpms, i have a 93MTX and with it on not only do i lose all kinds of acceleration, but i shifts really hard, i mean it goes into the gears great, but when letting off the clutch, it pops rough if you know what i mean, its tough to describe, youd know if you drove her, any and all info would be a great help, thanks guys, Dan

 

[sdpatt]

Check your A/C compressor's health. it may be damaged and absorbing too much horsepower. Also reset the idle speed program. Here it is... one... more... time.

1) Disconnect the negative battery terminal, or
...1.1) Optionally, disconnect the keep alive memory connector in the small wire also landed to the negative battery terminal. You can then wait the 10 minutes, reconnect the plug, and go to step 6).
2) Turn the headlight switch ON.
3) Wait at least 10 minutes.
4) Turn the headlight switch OFF.
5) Reconnect the negative battery terminal.
6) Start engine normally (never press on the gas pedal when starting a fuel injected engine).
7) Allow idle speed to settle for at least 30 seconds.
8) Within 70 seconds after starting the engine, apply all accessory loads that the engine will see at idle. Do these concurrently.
...8.1) ATX SHOs only: shifter to DRIVE.
...8.2) Climate control to MAX A/C.
...8.3) Headlight switch ON.
...8.4) Turn steering wheel 1/4 turn side to side.
...8.5) Press brake pedal.
9) Do not turn off the engine for at least 5 minutes.
10) It is preferable that the car be driven immediately after setting the idle programming.
11) While driving, allow the coolant temperature to rise to the normal range.
12) Run the car through its entire performance range.

 

[93SHOMTX]

hey thanks a lot, ill try that tonite

 

[VNUK1SHO]

I'm havin the same problem , I did reset the idle today but did not help. Also it has a weird sound when idling especially when the compressor kicks in. I'm curious how expensive a new compressor and if I can get one from a regular taurus or sable?

 

[stangeater]

I'm havin the same problem , I did reset the idle today but did not help. Also it has a weird sound when idling especially when the compressor kicks in. I'm curious how expensive a new compressor and if I can get one from a regular taurus or sable?

Most of the time, You don't need a new compressor, just the clutch. You can get one at autozone. I had the same problem, and a new compressor clutch did the trick. Good luck.

 

[VNUK1SHO]

Thanks man I'll try that and post my results.

 

[hawkeye18]

12) Run the car through its entire performance range.

Translation: drive it like you stole it.

 

[PaulNasers]

if it is the compressor cluch dont u think that you would be burning belts
if the clutch is bad it locks up right?

 

[hawkeye18]

it most certainly can lock up and fry/snap the belt.