Question about 2005 Mercury Mariner

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06 mercury mariner wont accelerate rpms go down with pedal to the floor , only goes up to 3,000 rpms, then declines, cant drive 25

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Posted on Jan 02, 2017

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SOURCE: Brakes on 2000 Mercury Moutaineer wont stay

did you check the master cylinder? makke sure the cap is on tight....and full of fluid

Posted on Jan 11, 2009

  • 73 Answers

SOURCE: engine ideling

Check for a vacuum leak around your intake probably close to the throttle body

Posted on Feb 06, 2009

  • 66 Answers

SOURCE: '97 Mercury Mystique car bogs down and won't accelerate

check fuel pressure . fuel pump likely going bad

Posted on Jun 29, 2009

  • 1 Answer

SOURCE: 2006 Mercury Mariner - sticky gas pedal

I have a 2005 Mariner with the same problem. Always when the weather drops

Posted on Jan 09, 2010

  • 85 Answers

SOURCE: 1993 Mercury Grand Marquis, Brake fluid leaking

Hi, the reason the pedal goes to the floor is because the brake line going back to the rear axle blew, first you will need to find where the hole is and cut out the bad section, usually you can find a clean spot further down that you can cut out the bad spot. you will need to go to the parts store and get a new piece of brake line and a tubing cutter and a double flare kit. usually you can rent one of these to save money.

Posted on May 22, 2010

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1 Answer

Why does engine run rich at times under acceleration?


not enough detail
to get an engine to accelerate , the air /fuel mixture is moved to rich in accordance with engine rpms
the more rpms the richer until the peak rpms are reached
( accelerator pump-power valve in carbies and ECM settings according to accelerator position
black exhaust smoke in diesels
so if you press the accelerator slowly then the air/fuel mixture is altered constantly in relation to the pedal setting
If you floor the pedal then it moves to rich and you get black exhaust smoke until the air mixture is again in balance

Oct 21, 2015 | Cars & Trucks

1 Answer

2007 ford expedition wont rev past 2500 rpms in park or goin down the road


Start by checking your TPS switch (throttle position sensor) located on the throttle body . They turn while your foot pushes the accelerator pedal . TPS voltage goes from 0 to 5 volts and is easily checked with a volt meter .

Apr 06, 2014 | 2004 Mercury Mountaineer

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My 2002 hyundai accent 1.6 wont go above 25 miles an hour. idles high at 1500 - 2000 in park. drives normal until 25 and wont gaain speed til i drive another mile and half down road, then jumps tp 3200 rpm...


Possibly but to find the fault have the fault codes read . It may be the accelerator position sensor . Don't waste money until you have the codes to point you in the right direction

Mar 05, 2014 | Hyundai Cars & Trucks

1 Answer

Break pedal goes to floor but still has ablity to stop


Check that vacuum line to the servo or booster (as it is sometimes called) is attached with no holes in it if that looks good then its probably the servo. the servo is what your master cylinder bolts onto. this happened to mine, to replace simply unbolt master cyl. from serve the unbolt servo by reaching under dash just above brake pedal and pulling carpet down and remove the 2 or 3 nuts or bolts holding servo then pull servo from firewall and replace.

Feb 26, 2014 | 2005 Mercury Mariner Premier

1 Answer

Cant accelerate past 4,000 rpms


Intake leak of bad mass airflow sensor. You can clean a MAF.

Dec 31, 2013 | Isuzu Rodeo Cars & Trucks

1 Answer

When I get the Durango up the 25 or 40 speed the rpms start to act up and you feel a rumble in the gas pedal and the RPMs gets stuck I have to let the Rpms drop to around 1 or below1 RPMs before the rpms...


that is a throttle body male function, open the hood and see the are where your accelerator cable is attached see if that sticks if not then your throttle body needs a service or replacement...

Oct 19, 2011 | 1999 Dodge Durango

1 Answer

I depressed the accelerator pedal when i started my engine and now it wont start on my mercury grand marquis


you may have flooded the motor jusy wait half hour and retry if it doesnt start try holding to the floor and cranking untill it trys to run then by holdig it down it clear the flood only crank 15 to 20 seconds and dont take foot off pedal when you stop cranking just wait 30 to 45 seconds to crank agian and never let up until it runs. hope this helps Thunderboltz

Jan 28, 2010 | 1997 Mercury Grand Marquis

2 Answers

2006 Mercury Mariner - sticky gas pedal


I have a 2005 Mariner with the same problem. Always when the weather drops

Jan 07, 2010 | 2006 Mercury Mariner

1 Answer

I HAVE A 2006 FORD RANGER LEVEL 2 4X4....when giving it gas in neutral or park the motor jars around 3,000 rpms and won't go higher? when driving it works fine and passing gear works fine too...just when i...


Funny....thats a safety feature ford now uses. Keeps you from blowing the engine and no you cant by pass it. So yes its natural. But nice to know that someone still trys to feed some speed.....

Jul 31, 2008 | 2000 Ford Focus

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