Question about 2006 Mercury Montego

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Sudden acceleration when stopped and foot on brake - like at a stop light.

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The very first thing u must do here is get the electronic engine control system tested, this is not just a passive code test like Kragen auto parts runs but an engine running test active test, the throttle control system has sensors that need to be checked, the scanner does this and reports problems found, I strongly suggest u have the dealer do the diagnosis ASAP before u run into someone.

Posted on Aug 25, 2010

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Posted on Jan 02, 2017

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1 Answer

My mav running fine then all of a sudden started missing and stalling when i stopped at lights..when i restarted it it went well for a few weeks then started doing the same more frequently..


if this is happening when you have your foot on the brakes (at lights ) it is probably a failing brake booster allowing too much air into the manifold

Nov 09, 2015 | Cars & Trucks

1 Answer

Shuts down at stop signs


do the simple test
start the car and see if it idles normally-- foot off the brake--if so good
now put your foot on the brake -does the engine stop-- if so then replace the brake booster as it has a vacuum leak
you may not notice the difference as most people sit at lights with their foot on the brake so all they understand is that the engine stops at lights.

Jun 30, 2015 | 2008 Chevrolet Hhr

1 Answer

My honda jazz is giving me a problem.when i am by the stop and i accelerate when its green light i feel a shake on the front end wheel.have have changed the tyres i did alignment but still the same


I'm guessing there's a delay in the front brakes releasing when you take your foot off the brakes. Try this experiment. In a large parking area (like a shopping center) where you can give yourself plenty of braking distance, use your emergency (parking) brakes to bring your car to a stop. The parking brakes only operates the rear brakes. When you come to a complete stop, accelerate and see if you still feel this shake on the front steering axle. If the symptom stops when you only use the rear brakes, then the brake master cylinder is not releasing the hydraulic pressure on the front brakes when you take your foot off the brake pedal. Who ever did your tires and alignment job should have suspected this, assuming you mentioned this symptom to them.
You spelled t-y-r-e-s which indicates you originated from Australia or UK England. In USA & Canada, we spell t-i-r-e-s. Put another shrimp on the barbie for me :-)

Nov 29, 2013 | Cars & Trucks

1 Answer

When coming to a stop, the brakes work fine until I get almost stopped, then the pedal will push down further and brakes will come on hard, and stop vehicle hard, what could be the problem?


Sounds like your master cylinder is bad on your brake system. If you are stopped in your driveway(not on the street) leave the vehicle in park. Start the car and place your foot on the brake with light pressure and keep this pressure on the pedal. If the pedal continues to drop slowly to the floorboard your master cylinder is leaking past the primary piston in the master cylinder. If this is the case have this repaired immediately. Your brakes could just all of a sudden not be there the next time you apply them when you need to stop.

Apr 05, 2012 | 1995 Buick LeSabre

1 Answer

Why wont my 2008 dodge avenger shift from park?


I assume you are pressing firmly on the brake pedal. If so, it is most likely the brake safety switch, not detecting that you are.
Contact your dealer about the override for this, (usually there is a button somewhere), if that fixes it, you need to get it replaced.
All new cars require that you press the brake to be able to shift out of park; this prevents the so-called "sudden acceleration" problem, when you put your foot on the accelerator instead of the brake, shift into drive, and then no matter how hard you press on the accelerator (which you *think* is the brake), the car will not stop, in fact it "races out of control".

But occasionally this switch goes bad and has to be replaced.

Sep 05, 2010 | 2008 Dodge Avenger

2 Answers

When first driving, I hear a high pitched whistling sound while my foot is on the accelerator. As I pick my foot off the accelerator, the sound will stop completely or after a moment or two and then return...


I have the exact same problem, however reversed. My whistling sound stops when I accelerate and starts when my foot is off the accelerator. Frustrates me and am afraid to have it looked at for fear of the cost of fixing this problem. Have you since discovered what the problem is or was?

Oct 12, 2009 | 2004 Jeep Grand Cherokee

2 Answers

Acceleration Issue


your fuel injectors are clogged

Aug 03, 2009 | Hyundai Accent Cars & Trucks

1 Answer

Engine races in ALL gears. 1997 Honda Passport 4WD


My gas petal used to stick on the jeep so i spray up in there on the petal to stop it from sticking ore the brake light woud stay on becuse petal got stuck try some WD40 just dont sray on your petal ok might work

Jul 18, 2009 | 1997 Honda Passport

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