Question about 2000 Mercury Sable

1 Answer

High RPMs, Check Engine Light on, and Transmission light flashes

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?

Posted by on

  • 1 more comment 
  • wadonalex Sep 05, 2008

    check engine light and the engine is shek

  • Jay Green Sep 26, 2008

    Well, I figured out the issue. I had checked the vacuum hoses, wire connections, and even put a meter on the harness to make sure it wasgood and no wires had been broken. I almost thought it was the harness because it's right by the exhaust manifold and some of the connectors have been melted/fused together from the heat. [nice job Ford, of protecting your cables to avoid fire and auto trouble] But this wasn't the problem. I checked fuses, but not all of the fuses. There are SEVERAL spots where fuses are located. I don't remember doing anything to blow a fuse, but it's possible a contact may have touched something on the alternator. I replaced the fuse (one of the larger ones in the panel by the battery), and all is well.

    The sad thing is, I only found this out this Monday. The car has been sitting for about a month.

    FYI - A refurbished compressor for this car is $300+, and the dryer is another $120-$175. Had the compressor been replaced, it STILL would have had the high RPMs due to the fuse. Call me crazy, but I'm not seeing any genius behind the engineering of this vehicle.


  • Jay Green Apr 17, 2009

    I got it fixed. Shame on me for not immediately posting the fix, but I travel a lot for work.

    Anyway, it was a fuse. A fairly large sized fuse in the panel under the hood, but a fuse nonetheless. I also had to replace an emission control device on the exhaust manifold, but that didn't have anything to do with the transmission issue.


×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 96 Answers

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

  • wyatt connolly
    wyatt connolly Sep 26, 2008

    no they are terrible cars if it wasnt for fords i would have starved as a mechanic for 25 years lolz but u can get all of it for 300$ or so trust me. call 1 800 radiator and tell them you are a shop and just make a new account with them and have it delivered. :)

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2004 Ford Explorer transmission shift problems, O/D light flashes, engine RPM high.


Stop using it

If have been, you may have ruined it,
just driving ten miles

Have a trans shop diagnose the issues

The clunk into reverse troubles me alot

I used to own a trans shop

Mar 12, 2013 | Mercury Grand Marquis Cars & Trucks

2 Answers

2002 Mercury sable misfiring only on cylinder 3


Can't believe some the lame answers here. Anyone having this issue check the PCV hose where it attaches too the air intake, the rubber breaks down and develops a leak. But these engines also have wiring issues that causes crankshaft sensor to fail at startup or under 1000 rpms causing the computer to shoot a code and trigger the engine light. I have these issue cause the above problem.

Jul 07, 2012 | 2002 Mercury Sable

1 Answer

My check transaxle light came on and is flashing. and the car is idling high


Check the vacuum line that runs from the intake manifold down to the vacuum modulator on the transmission. I'm betting it has come loose or the hose is broken.

Aug 30, 2011 | 2000 Mercury Sable

1 Answer

2003 sable with 140,000 miles rpms jumping and straining sound beneath the hood near belt what could be the prob and check engine light is on?


Thanks for choosing FixYa and welcome. Since your check engine light is on, you need to take it to Autozone or Advanced and have it scanned. They do this for free and it just takes a minute. Your light is on because your computer has detected a problem with your car. There are over a hundred different things that can cause the light to come on, this is why you need to get it scanned. This way, you know what to change and your not throwing your time and money away on parts you don't need.

Apr 26, 2011 | 2002 Mercury Sable

1 Answer

!999 Mercury Sable, 3.0L OHV - I just put Autolite app104 double platinum spark plugs in, Autolite #96837 ignition wire set on, and an air filter. All was fine for 20 miles and then my "Service Engine...


Computer has detected a fault--may or may not relate to the work you did. Please get a diagnostic scan of your OBD II connection and report trouble codes back to us. If you are in US, Autozone and Advance, among others, have free scanning service. We need the codes to diagnose.

Sep 30, 2010 | 1999 Mercury Sable

1 Answer

Is it wise to buy a 2002 mercury sable with the 3.0 OHV engine with 28,000 original miles? Are these engines dependable, attaining high mileage (over 200, 000)?


You can probably expect over 200,000 if you keep up on maintnence with regular oil changes and everything but anything with only 28,000 miles is really good!!!

Oct 16, 2009 | 2002 Mercury Sable

1 Answer

Engine Lights On...


When you hook up the scanner, make sure the ignition is off. After you plug it in, turn the key to "run".....do not start the car.

Jan 28, 2009 | 2001 Mercury Sable

1 Answer

1989 Mercury Sable, 3.0L V-6, Auto Trans. Engine Idles at about 2000 RPM.


Check your vacuum hoses (They are 3/8" Rubber hosing on the right side of the engine, you will need to remove the air intake piping (Also remove the throttle body to make accessing them easier) This is the #1 cause of high idling in the 3.0 OHV and 3.0 DOHC sable engines.

Jan 17, 2009 | 1989 Mercury Sable

Not finding what you are looking for?
2000 Mercury Sable Logo

373 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Fordexpert

Level 3 Expert

5331 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...