I have a 2003 sable that hesitates while accelerating from a stop, drivin, on the freeway and now it hesitates while at a stop sign. Taken to two mechanics cannot find the problem. could it be tranny?

Asked by May 02, 2010 at 09:42 PM about the 2003 Mercury Sable

Question type: Maintenance & Repair

Taken to two mechanics and the hesitation is getting worse.  Had the 60,000 mile service.  Nothing show on the computer but mechanics have felt the hesitation.  Not sure what to do with the car.  Don't know if I should take it to the dealer.

12 Answers

70

First thing I would go after is the O2 sensor. It has the final say as to whether or not the correct air/fuel mixture is being delivered. It is also how the computer knows if any of the sensors in the fuel managment system are acting up. If the correct amount of fuel is going in but the manifold air pressure sensor disagrees then the computer will tell you there is a problem with the map sensor. In either event, if the O2 sensor goes you may not get any feedback from your car about what the problem is and it won't know if its adding the right amount of fuel. Second think I'd go after is the EGR valve. After 35K miles on my 2001 3.0L it pitched a code that said "Insufficient EGR Flow". The mechanic said replace the EGR but I took it home and went through the testing in the book and it turned out to be the delta pressure feedback sensor. It is part of the EGR unit and much easier and cheaper to replace than the EGR valve itself. Apparently the unit they used was so bad in the original production that they were on there fourth iteration when I replaced mine. Just because the computer could let you know when there is a problem doesn't mean it will. Especially if the O2 sensor is bad.

7 of 7 people found this helpful.
40

Did you ever figure it out? My Sable is having what sounds to be the same problem! Its been at the mechanics for a week after I changed a bunch of things. We are both stumped.

4 of 4 people found this helpful.
125

If it's the 24V version they have a problem with a rubber elbow that tears and leaks air past the mass air flow sensor. Usually it comes up as a 'Too Lean' code.

7 of 7 people found this helpful.
160

I have the same problem as bob12271 but when my car was at freeway speeds the engine light would flash and then stay on. i was able to get codes read and it said it could be multiple problems like fuel pressures or cylinder 6 misfiring. I replaced the fuel filter and it seems to be running much better but it is still hesitating with no engine lights involved. Iam worried its the fuel pump but could it be just a o2 sensor? i have a 2003 24v mercury sable ls with 75,000 miles.

8 of 8 people found this helpful.
160

I also replaced the air filter.

2 of 2 people found this helpful.
30

spark plugs and wires fixed mine. it not so easy as the back cylinders require pulling off part of the intake.

3 of 3 people found this helpful.
60

Same thing happens with mine but after hesitating after being completely stopped it seems to run ok but the transmission wont change. The code says short circuit but the mechanic is saying bad computer. Could it be?

4 of 4 people found this helpful.
60

I meant the transmission wont shift from first (automatic)

2 of 2 people found this helpful.
160

I have the same problem with my 2003 24v hesitates when accelerating between 40 to 45 mph it starts epically when going up hills and no lights come on. I took it to the mechanic and he couldn't find anything. I see a lot of people complaining about this. Is there a recall for this?

16 of 16 people found this helpful.
20

I have a 2004 Sable ls premeium with 3800 miles. Slugish with take off sometime. hesitates at about 40 jerks and bucks when you hit gas slightly. No codes at all. Ordered a new iacv hope that solves the problem.

2 of 2 people found this helpful.
60

I've had all of these problems and it ended up being 2 of 4 catilac converters...I believe thats what there called. I know there's 4 of them. As soon as we took them out pieces just fell out of them. It was clogged. Thought I would share my story. I have a question. I have a 2001 sable and now it only sputters at stop signs or lights. If it's in park it's fine, driving is also fine. It's just at stops with foot on brake.

6 of 6 people found this helpful.

My miles to E is wrong...it was working & now it says 473 miles to E whats wrong ????

Your Answer

Sable

Looking for a Used Sable in your area?

CarGurus has 832 nationwide Sable listings starting at $1,900.

ZIP:

Mercury Sable Experts

  • #1
    JP1956
    Reputation
    710
  • #2
    Tom Demyan
    Reputation
    640
  • #3
    Guy Outland
    Reputation
    410
View All

Related Models For Sale

Used Ford Taurus
183 Great Deals out of 15,810 listings starting at $1,850
Used Chevrolet Impala
559 Great Deals out of 35,105 listings starting at $900
Used Mercury Grand Marquis
33 Great Deals out of 1,705 listings starting at $1,000
Used Ford Explorer
891 Great Deals out of 67,382 listings starting at $1,800
Used Honda Accord
1,043 Great Deals out of 56,909 listings starting at $1,099
Used Buick LeSabre
15 Great Deals out of 1,765 listings starting at $750
Used Toyota Corolla
782 Great Deals out of 53,296 listings starting at $1,502
Used Toyota Camry
932 Great Deals out of 79,642 listings starting at $750
Used Chevrolet Malibu
968 Great Deals out of 66,096 listings starting at $1,000
Used Mercury Mountaineer
28 Great Deals out of 1,157 listings starting at $1,900
Used Ford Escape
1,029 Great Deals out of 93,152 listings starting at $1,200

Used Cars For Sale

2009 Mercury Sable For Sale
4 Great Deals out of 46 listings starting at $3,495
2008 Mercury Sable For Sale
6 Great Deals out of 119 listings starting at $1,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.