Question about 2000 Mercury Sable
I have a 2000 Mercury Sable V6 3.0L OHV, with about 72,000 miles. The A/C compressor went out recently. To replace the compressor and accumulator would cost about $600....for me to do it myself. Instead I opted for a bypass pulley that only cost about $45, altogether.
However, The car now has high RPMs, almost as if it's not shifting gears. At 3500 RPMs, I'm doing about 40MPH. It's not in overdrive either. Could this be related to me swapping out the A/C compressor?
The Check engine light is also on, and there's a gear with an ! in the middle that keeps flashing. I'm guessing that's my transmission light.
If it's nothing with the transmission, how do I fix this? If it is with the transmission, How is it that the transmission was fine until I changed the A/C compressor out for the bypass pulley?
You may have disconnected 1 or more vac. lines on accident in the process of swapping to the bypass pulley. the transmission light is never a good sign, however it is a very common problem on the AX4S transmission that is in your car as they are about the most problematic front wheel drive trans there is. try also pulling all the fuses and relays that control the a/c system. it should only cost about 300$ for a compressor and drier for your car (dont buy it at the dealer! )
the cars computer may be confused because it is not getting a signal from the wire harness to the compressor and is stuck in high idle mode due to that.
Posted on Sep 26, 2008
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