Question about 2000 Mercury Cougar

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2000 mercury cougar engine speed stays up when gas pedal is released, sometimes increases when pedal is releases to shif up gears, takes 3 seconds or more to come down to idle when gas pedal is released, will hold at 2000 +- 250 rpm when driving and releasing gas pedal and just letting it go onj by itself, but will drop in rpm if brake is used and gas pedal is released to slow down, and sometimes at a stop light will almost stall dropping to 250 rpm then recovering to a good idle speed of 750 rpm. The idle control motor was changed less than 10,000 miles ago (New Ford part used).

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  • Contributor
  • 8 Answers

Almost sounds like the cruise control is engaging

Posted on Dec 04, 2012

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: 98 Mercury Tracer idle drops at a dead stop and

Check your PCV valve tube (to the right side of the top of the engine. When mine did this, the tubing for the PCV valve had dry rotted and cracked, thus losing pressure and stalled the car. Ford parts department has these at any dealership if that is the problem.

Posted on Jun 20, 2009

  • 2 Answers

SOURCE: engine stalls after cold start-up & release from high speed idle

I had a similar problem.  I found the filter cartridge below the pcv valve had carboned up, and after the crank case pressurized, oil was forced out the pcv supply line to the throttle body.  The idle air control valve solenoid got oil in it and caused my problem, but only when it was cold.  The pcv cartridge is accessed by removing the pcv valve and the rubber fitting that the pcv valve mounts in.  It can then be fished out with a pick set, and it is a pain because you can't see it, but you can get you hand back there.  I hope this helps you.

Posted on Feb 28, 2009

  • 1 Answer

SOURCE: 95 Mercury cougar won't get up to speed from the take off

shifts first to second hard

Posted on Apr 18, 2009

oneStan
  • 430 Answers

SOURCE: stalls when idling

This generally is your throttle position sensor or Idle speed control motor. The idle is controlled by the Power Conotrol Module/computer & shouldn't really require adjustment at the throttle body if the components are installed & working properly.

The symptom you are describing is a textbook example of a failure in one of the parts listed above.

As always, I suggest you do check your air filter & fuel filter if not changed recently, use an OBD II tester to provide you with any engine codes that haven't yet triggered the "check engine" light. Some single codes don't trigger the light & some do, just a good check you can usually have done at a local auto parts store. Free as a rule from some of them. They want to sell you the parts! Good luck.

Posted on Feb 07, 2010

  • 73 Answers

SOURCE: Engine Stalls

for the oil pressure guage issue you need to change the oil pressure sending unit.

Posted on Apr 11, 2010

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1 Answer

How to relearn throttle body on a Lexus is250


Pedal Relearn Procedure
Accerlerator Pedal Released Postion Learning is and operation to learnicon1.png the full released postions of the accerlerator pedal by monitoring the accelerator pedal sensor output signal. It must be performed each time harness connector of accelearator pedal postion sensor or ECM is disconnected.

1. Make Sure the acceleartor Pedal is fully released
2. Turn Ignition switchON and wait at least 2 Seconds.
3. Turn ignition switchOFF and wait at least 10 Seconds
4. Turn Ignition switchON and wait at least 2 seconds.
5. Turn Ignition switchoff and wait at least 10 seconds

Throttle Valve Relearn
Throttle ValveClosed Postion Learningicon1.png is to learn the fully closed postion of the throttle valveby monitoring the throttle position sensor output signal. It must be performed each time harness of
electric throttle control actuator or ECM is disconnect.

1.Make sure accelerator pedal is fully released.
2. Turn ignition ON
3. Turn igntion switch OFF and wait at least 10 seconds. Make sure that the throttle valvemoves during the 10 seconds by confrming the operating sound.
(You can hear the TB sound when you have key on and shifter in first gear and step on the gas. So you know what you listening for.)


Idle Air Volume Relearn Procedure
The Following Condtions Must be met in order for procedure to Work.

Battery Voltage :More than 12.9 volts at idle
Engine Coolant Temp 158-203 degrees Farenhiet
Electric Load Switch OFF i.e Air Condition, headlamps , rear defogger
Steering Wheel: Neutral Postion (Straight Ahead)
PNP Switch: OFF (Park Neutral Switch i.e. Clutch Switch...pretty sure)


1. Perform ACCERLEARATOR PEDAL RELEASED POSTIONS LEARNING
2. Perform THROTTLE VALVECLOSED POSITION LEARNING
3. Start engine and warm it up to operation temperature
4. Turn igniton switch OFF and wait at least 10 seconds
5. Confirm Gas Pedalif fully realeased, then turn igniton switch ON and wait 3 seconds
6. Fully step on and release gas pedal5 time within 5 seconds
8. Wait 7 seconds and fully step on gas and stay on until MIL stops blinking and is steady.
9. Fully release the Gas pedalwithin 3 seconds after the MIL has turned ON steady.
10. Start engine imediatly and let idle. Wait 20 seconds.

Sep 22, 2014 | Lexus IS 250 Cars & Trucks

Tip

How to reset ECU,Throttle and Accelerator Position Learning


Hi.

Below the procedure to reset ECU,Throttle and to perform Accelerator Position Learning on Nissan. It works on Titan, Altima, Infinity, pathfinder and other models.

ECU Resetting


While performing the procedures below, ensue that you are respecting the times stated. If the steps are not done within the specified times, the module will not reset. You will need to use a watch or a chronograph while performing the procedures.

Procedure:

1. Ensure that the accelerator pedal is fully released, set ignition switch to the “ON” position, then wait 3 seconds.
2. Follow the steps a and b below, repeat the two steps in sequence quickly for five times within 5 seconds.
a. Push hard the accelerator pedal untill fully depressed.
b. Release the accelerator pedal in full.
3. Wait 7 seconds, then depress the accelerator pedal completely, and hold it for about 10 seconds until the CEL (check engine light) starts blinking.
4. Release the accelerator pedal while the CEL is still blinking.
5. Wait 10 second.
6. Depressthe accelerator pedal in full and hold it for 10 seconds or more.
7. Fully release the accelerator pedal while the CEL light keeps flashing.
8. Turn the ignition switch to “OFF” position and start the vehicle. If procedure has been done correctly, then the light light will turn off.
If the light continues to stay on, repeat the procedure.

Accelerator Pedal Release Position Learning

Procedure

1. Ensure that the accelerator pedal is completely released before starting the procedure.
2. Turn the ignition switch “ON” and wait at least 2 seconds.
3. Turn the ignition switch “OFF”, and wait at least 10 seconds.
4. Turn the ignition switch “ON” and wait 2 seconds.
5. Turn the ignition switch “OFF” and wait 10 seconds.

Throttle Valve Closed Position Learning

Procedure

1. Ensure that accelerator pedal is completely released.
2. Turn ignition switch to the “ON” position.
3. Turn ignition switch to the “OFF” position and wait at least 10 seconds.
Ensure that the throttle valve moves after turning the switch off.

Idle Air Volume Learning (Throttle Position Learning)

Procedure

1. Follow the Accelerator Pedal Released Position Learning described above.
2. Do the Throttle Valve Closed Position Learning also described above.
3. Start the engine, and allow warming up.
4. Turn the ignition on “OFF” positionand wait 10 seconds.
5. Ensure that accelerator pedal is fully released, then turn the ignition switch to “ON” position, and wait 3 seconds.
6. Repeat the steps a and b below five times within 5 seconds in sequence.
a. Push hard the accelerator pedal untill fully depressed.
b. Release the accelerator pedal until reaching full extension.
8. Wait 7 seconds or more, depress the accelerator pedal completely and hold the pedal down for about 20 seconds until you see that the Check Engine Light stops blinking and starts getting steady..
9. Rrelease completely the accelerator pedal within 3 seconds after the light coming ON.
10. Start engine and let it run at idle for about 20 seconds.
12. Test the engine to ensure the idle speed and ignition timing are set correctly.

Regards.

on Mar 25, 2010 | Nissan Titan Cars & Trucks

1 Answer

What does front brakes wont release mean


It means the brakes are still applied...the hydraulic pressure from stepping on the brake pedal is not releasing once you take your foot off of the brake pedal. Causing the brakes to not release.

Jul 11, 2014 | 2000 Mercury Cougar

1 Answer

2000 mercury cougar engine speed stays up when gas pedal is release, increase when pedal is release and shifting gears, takes 3 seconds or more to come down to idle when gas pedal is release, will hold at...


You have a mechanical bind. Disconnect the main linkage and work it all by hand. Everything should be free and slopy. Aerosol carb cleaner will help, but only when the engine is not running.

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My truck starts and stalls and will not idle


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Mercury xr7 starts then starts coughing and chocking like not


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