Question about 2002 Mercury Sable

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Engine racing/roaring The engine on my 02 Mercury has been racing/roaring since I bought it and has had some difficulty in the last few days when pulling up hills. The car acts like it is running hot but no indicator lights are coming on. Fluid levels are all good and the car runs very well on level road. Not sure what the issue could be.

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IT'S THE TIMING CHAIN/BELT! Well at least that would be my diagnosis based on previous experiences. Read On Below.....

I had this issue on a 2001 Ford Escort ZX2. I lost all my uphill pull & had to gear down on hills that I normally did not. I took it to a mechanic buddy & he determined it to be the timing chain/belt. When he tore it down he discovered that it was not the actual chain but was the chain's tensioner pully. It was in more than a few pieces. I had him replace the chain as well just because it was probably the OEM part & I didn't want to have to go back in there to replace something that he had to take off to replace the pully that was bad & I had already bought it so it was a no brainer. So it could be the timing chain & if by chance it is you SHOULDN'T BE DRIVING IT AT ALL because it can & will eventually, in a nutshell, cause damage to the point that the engine would be inoperable altogether. I was lucky that I didn't screw up the engine on my escort.

Posted on Jun 05, 2015

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You will need to do a compression test on the pistons. it could be the stem seals have failed on the valve stems. (this is for hills) racing /roaring, racing could be a weak clutch if manual/ auto can be incorrect settings been put on gear box. roaring can be a leaking manifold or leaking exhaust before or after first box or cat leaking.

Posted on Mar 22, 2014


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Posted on Jan 02, 2017

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SOURCE: I have a 2002 mercury cougar and my check engine

thats when you need to get it scanned sounds like water is getting in a sencer o2 perhapes but scan it for the code it should be stored in the memory

Posted on Sep 01, 2009

  • 373 Answers

SOURCE: Check engine code 1407

two people told me it was the egr valve
one guy said he replce the hose and it worked for him
I hope this helps

Posted on Feb 03, 2009

  • 104 Answers

SOURCE: "check engine light flashing"

The flashing check engine light is typical of a misfire issue. There are two things I would do to start with.

1. Take the vehicle to an auto parts store like Autozone and have them hook up their scan tool so that they can retrieve stored trouble codes. Even if the check engine light is not on, they should be able to retrieve recently stored codes.

2. Do a complete tune up. New plugs, new plug wires, new air filter, new fuel filter if it has not been done recently.

If the parts store pulls the codes and they cannot tell you what they mean, post them up here and I will see what I can dig up for you.

Posted on Jan 02, 2009

  • 1985 Answers

SOURCE: I have a 1999 Mercury

check for dirt or rust in those injector screens

Posted on Jan 03, 2010

SOURCE: Mercury Mountaineer sputters and backfires when climbing a hill

EGR Valve!
Do you have a MIL Light on? If so,what codes do you get?
Also,maybe a bad ignition coil

Posted on May 24, 2010

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The PCV is a valve and a hose, that sucks engine ring bypass gasses and reburns them. if it plugs up the engine leaks oil.

if the hose cracks it sucks air and the AFR goes lean and bucks.


only on engines (unstated) that use a MAF sensor.

engine that use a MAP sensor ,race too fast with full power and no jerk with air leaks.

next time post engine type. as we can not guess this.

the list.....

2.0 L FS-DE I4 (99-02)

2.3 L L3-VE I4 (02-05)

2.5 L GY-DE V6 (99-01)

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if unsure, (why fix any engine,if unsure>)but in the USA

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no engine , no country, no joy,

Jul 18, 2014 | 2000 Mazda MPV

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My 02 mercury mountaineer transmisson sims to have problems changing gears the over drive light is flashing

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Did they road test the car with the scan tool along &
capture live data?

What did you pay for?

What did they do?

Try a dealer or different shop

You drive the car long enough for the
problem to occur,they have to do the same

Did you leave the car for a few days,ever use
the shop before,are they capable of that kind
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That truck has a electric fan clutch its probley the noise your hearing they stay on too long sometimes.Ive replaced at least 6 of them in the last 2yrs.

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check the brake booster and vac supply to it. big hose on the booster.

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Need MUCH more information in order to help.

Is the engine getting spark? Is their fuel pressure at the rails ?
Is their oil in it ? Battery connected properly ? Miles on the engine?
Engine size ? Has any one ever replaced the neutral safety switch ?

Jun 01, 2009 | 1994 Mercury Cougar

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