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Truck stalls when you let off accelerator

Restarts fine, has rough idle then smooths out, drive further the stalls as soon as gas pedal is released.

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  • Cars & Trucks Master
  • 5,370 Answers

It can be low fuel pressure issue or clogged fuel pump. Or its engine related issues,---------------

Check the help link mentioned below to troubleshoot the problem: ------


STALLING/ STALL PROBLEM
http://alltypesofpartsreplacing.blogspot.com/2012/12/engine-stallscar-stalls-while.html


----------
These will help.
Thanks.

Posted on Dec 06, 2012

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Posted on Jan 02, 2017

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countrysi248
  • 443 Answers

SOURCE: rough idle, backfire on acceleration

check everything you can under the hood your air intake system all of it especially make sure all clamps are tight .. and make sure all vacuum hoses are good and not cracking or broken or just loose . you might run a little fuel cleaner through a tank of gas too cleaning the engine fuel system up some. just a few ideas.. Jerry

Posted on Apr 12, 2009

  • 10 Answers

SOURCE: 1999 dodge durango is hard to start. Starts with

FIrst have you tried giving the engine a tune up (ie replaced the spark plugs)

Also you need to check the condition of all the vacumn lines on the engine loss of vacumn can cause poor idling.

Posted on Aug 16, 2009

  • 105 Answers

SOURCE: 2000 LeSabre starts but runs very rough and stalls. After

My 2002 Lesabre (app 115000 miles) started something like this. Also the loose gas cap had been coming on for quite a while. I replaced the vacuum line from the air intake to the fuel sensor. It is under the engine cover (twist off the oil filler to remove the cover). There are two hoses together that come of the air intake. The small one goes to the top of the engine. The other goes across the front and makes a 180 turn back to the sensor. Chances are the 180 piece is cracked. It all comes from the dealer as one unit. $25
Seems to have fixed my problems. So if your car is running a little rough. Shutters under load. If the gas cap loose is coming on or probably a number of symptoms this might be the answer. I would replace this item. A cheap try.

Posted on Mar 12, 2010

  • 27 Answers

SOURCE: 1994 Honda Accord 4 door v6 rough idle and take offs

vacum leak

Posted on Jun 08, 2010

  • 1 Answer

SOURCE: 2007 Land Cruiser stalls to idle and non responsive to gas pedal

Had exact same problem after driving 120 miles in Florida heat. After 30 minutes started but ran rough for a day and now seem fine. Thought at first fuel filter or dirty gas. Going to replace filter anyway. Is this a common problem?

Posted on Jul 11, 2010

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Engine idle very lumpy and wanting to stall on gear down shift. Sometimes poor on starting until fuel gets through then car runs well but very smelly.


SYMPTOM 1: ROUGH IDLE IN THE COLD

The engine will not idle smoothly, or it stalls during idle when the engine is cold. When the engine is cold and you take your foot off the gas pedal, the engine runs very rough and may even stall. When you run the engine at higher speeds, it seems to run fine, or at least it runs more smoothly.
Possible causes:
  1. If you have a carburetor, you may have a bad accelerator pump or power circuit.
    The Fix: Replace accelerator pump or replace the carburetor.
  2. There may be a vacuum leak.
    The Fix: Check and replace the vacuum lines as required.
  3. There may be some type of ignition problem.
    The Fix: Check and replace the distributor cap, rotor, ignition wires, and spark plugs.
  4. The ignition timing may be set wrong.
    The Fix: Adjust the ignition timing.
  5. There may be a fault in the computerized engine control system.
    The Fix: Check engine control systems with a scan tool. Test the circuits and repair or replace components as required.
  1. The EGR valve may be bad.
    The Fix: Replace the EGR valve.
  2. The engine may have mechanical problems.
    The Fix: Check the compression to determine the engine's condition.
  3. Idle speed is set incorrectly.
    The Fix: Set idle speed to the car's original settings.
  4. The fuel injectors may be dirty.
    The Fix: Clean or replace the fuel injectors.

SYMPTOM 2: ROUGH IDLE WITH WARM ENGINE

The engine will not idle smoothly, or it stalls during idle when the engine is warm. When the engine is warm or hot and you take your foot off the gas pedal, the engine runs very rough and may even stall. When you run the engine at higher speeds, it seems to run fine.
Possible causes:
  1. If you have a carburetor, you may have a bad accelerator pump or power circuit.
    The Fix: Replace accelerator pump or replace the carburetor.
  2. There may be a vacuum leak.
    The Fix: Check and replace vacuum lines as required.
  3. The fuel pressure regulator may be operating at too low a pressure.
    The Fix: Check the fuel pressure with a fuel pressure gauge. Replace fuel pressure regulator. (This is not really a do-it-yourself kind of job.)
  4. Idle speed set incorrectly.
    The Fix: Set idle speed to specs.
  5. There may be some type of ignition problem.
    The Fix: Check and replace distributor cap, rotor, ignition wires and spark plugs.
  6. There may be a fault in the computerized engine control system.
    The Fix: Check engine control systems with a scan tool. Test circuits and repair or replace components as required. (This is not really a do-it-yourself kind of job.)
  7. The EGR valve may be bad.
    The Fix: Replace EGR valve.
  1. The engine may have mechanical problems.
    The Fix: Check compression to determine engine condition.
  2. The fuel injectors may be dirty.
    The Fix: Clean or replace fuel injectors.

SYMPTOM 3: FAST IDLING

The engine idles too fast. After the engine has run long enough to become warm, the idle speed does not come down to normal. You really notice it when you come to a stop and must have to push ******* the brake pedal to keep the car from moving.
Possible causes:
  1. If you have a carburetor, you may have a bad accelerator pump or power circuit.
    The Fix: Replace the accelerator pump or replace the carburetor.
  2. The engine may be overheating.
    The Fix: Check and repair the cooling system.
  3. The fuel pressure regulator may be operating at too low a pressure.
    The Fix: Check fuel pressure with a fuel pressure gauge. Replace fuel pressure regulator. (This is not really a do-it-yourself kind of job.)
  1. The ignition timing may be set wrong.
    The Fix: Adjust the ignition timing.
  2. There may be some type of ignition problem.
    The Fix: Check and replace the distributor cap, rotor, ignition wires and spark plugs.
  3. There may be a fault in the computerized engine control system.
    The Fix: Check the engine control systems with a scan tool. Test the circuits and repair or replace the components as required.
  4. There may be a vacuum leak.
    The Fix: Check and replace vacuum lines as required.
  5. You have a bad idle speed control unit.
    The Fix: Replace the idle speed control unit.
  6. The alternator may not be working properly.
    The Fix: Replace the alternator.

SYMPTOM 4: STALLING UPON STOPPING

Car stalls when stopped quickly. You are driving along and everything is just fine ... until you let off the gas pedal and apply the brakes. The engine starts shaking and may even stall. Not a good thing to happen because you lose power steering when the engine dies and could risk an accident.
Possible causes:
  1. There may be a serious vacuum leak.
    The Fix: Check and replace the vacuum lines as required.
  2. There may be a fault in the computerized engine control system.
    The Fix: Check the engine control systems with a scan tool. Test the circuits and repair or replace the components as required. (This is not really a do-it-yourself kind of job.)
  3. Broken linkage.
    The Fix: Repair or replace the linkage as required.
Idling issues can be very frustrating, but with some patient troubleshooting, you'll have a real chance at figuring it out. Remember to always check your engine idle with the air conditioning and defroster turned off, as both of these systems are designed to change the idle when they are on due to the air conditioning system's demands on the engine.

Aug 25, 2017 | Cars & Trucks

1 Answer

The car keeps stalling splutters then stops running


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Jan 01, 2016 | Cars & Trucks

1 Answer

My truck starts and stalls and will not idle


Try increasing the idle speed. If you don't know, this is how to do it.
Open the bonnet and ask someone to push and release the gas pedal a five second intervals.
Observe which part is moving.
Yo will see a small adjustment screw on that lever. You will understand that by adjusting the screw you can increase the gas supply to the engine.
Slowly rotate the screw while the engine is running. (If the engine doesn't run in idle state as you have explained, ask someone to keep the pedal slightly pressed. After increasing the gas supply, ask the person to release the pedal).
Adjust it further to get a smooth running condition at idling.
Also check whether air cleaner is blocked.

Aug 30, 2011 | GMC Sierra 1500 Cars & Trucks

1 Answer

The engine has a tendency to run rough and will not accelerate smoothly. Feathering the gas pedal helps alleviate the problem a bit. When the A/C is running the problem is more noticeable.


Sounds like an idle air control valve (IAC) issue. It most likely needs a clean along with the throttle body interior. When you start up does the car struggle and almost stall when you engage the power steering or put the car into 'drive'.. If so then it is your IAC.

Oct 11, 2010 | 2004 Mazda MPV

1 Answer

2001 dodge dakota stalling when coming to a stop


While driving, the Idle air control valve (IAC) fully retracts and you control airflow with the gas pedal. When you come to a stop the computer extends the IAC to let air bypass the throttle plate and maintain idle speed. If the IAC is sticking it sometimes cannot compensate fast enough to avoid a stall. The problem is aggravated by the Air conditioner clutch cycling on while stopping. You don't mention the check engine light so not likely a sensor. If you have a OBDII scanner with live data available you can check the Throttle position sensor easily. You are looking for a smooth change through the range as you press and release the gas pedal. Or use a voltmeter to see the TPS. Measure resistance with engine off or voltage (0 to 5 volts) with ignition on. It should move smoothly through the range.
Another easy test. Park brake on, in gear (if an automatic transmission) at idle, load the engine by turning the steering quickly to the end and see how quickly the IAC recovers. Clean or replace IAC and while in there clean the carbon off of the edges of the throttle plate.

Mar 16, 2010 | 2001 Dodge Dakota

1 Answer

Was running fine then stalled suddenly. when it started back run rough at an idle black smoke from exhaust then press the gas pedal and it quit now it will not start at all


I just had a similar situation. The truck would run fine and then the Service Engine Soon light would start blinking and the truck would go into "limp" mode. It would eventually stall. Strangley though, if I turned the key over and then restarted it, it would start right up and run again. It ended up being the IPDM (Intelligent Power Distribution Module) that was bad. It cost me $520 to replace it.

Sep 28, 2009 | 2005 Nissan Frontier

1 Answer

Car stalls while driving and occasioinally while at idle.


THERE COULD BE MANY CAUSES OF THIS, BUT THE FIRST THING I WOULD CHECK IS THE BATTERY, CHECK ITS GETTING FULL CHARGE, AND MORE IMPORTANT KEEPING IT. AFTER THAT I WOULD CHECK THE FUEL PUMP, AND RELAYS, AN INTERMITTENT PUMP CAN CAUSE IT TOO. IF NONE OF THIS HELPS COME BACK.

Mar 15, 2009 | 2001 Volkswagen Golf

1 Answer

Not idling smoothly, sometimes having to restart at a stop w/ tranny in drive.


sure, that could be it. I would also suspect the fuel filter as well.

Jul 11, 2008 | 1997 Ford Aerostar Extended

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