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Posted on Dec 11, 2017
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Engine is running rough when idling and sitting still at stops etc.

I have a 1998 Ford Explorer, V8, all wheel drive. I just had new back brakes and new tires as well as new shocks put into this truck. When I got it back from all of this, then it was running rough when idling. Any ideas on what this might be. It seems like with the Air Conditioning off, it is a little bit better.

  • Marvin
    Marvin May 11, 2010

    Have you checked for trouble codes?

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1 Answer

toddgilbert

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  • Buick Master 6,360 Answers
  • Posted on Dec 11, 2017
toddgilbert
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5 Related Answers

Anonymous

  • 132 Answers
  • Posted on Oct 22, 2009

SOURCE: The shock on my front right tire is sitting on the

it's not a shock it's called a strut and there are two bolts that attatch it to the spindle , it can be adjusted but will require an alingment .

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Anonymous

  • 1509 Answers
  • Posted on Nov 02, 2009

SOURCE: rough idle then stalls

Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.

Testimonial: "Found the problem vacume leak like you said."

Anonymous

  • 184 Answers
  • Posted on Mar 30, 2010

SOURCE: my 2000 ford explorer runs rough when started

Have a mechanic check your idle bypass valve, since it may be bad
or need cleaning, also, have a tune-up done, if you haven't had one in
the past 30K miles. Good luck.

Anonymous

  • 288 Answers
  • Posted on Apr 02, 2010

SOURCE: u i have a 97 ford escort that idles rough so i

Often, on the Escorts of this vintage, rough idle can be due to a leak in the vacuum system. With the engine running, listen closely for any tell-tale hissing sounds coming from any of the vacuum hoses. Check that they are all securely in place and the end-clamps are all tight. Also check that the PCV valve and the hose connecting it to the manifold are securely in place. Another possibility is the Idle Air Control (IAC) valve. If it is clogged or sticking, it can cause rough idle. Refer to a service manual to diagnose the IAC valve. Other things to check: make sure that the air intake is unobstructed and clean. You might consider cleaning the manifold and throttle body. Check the air filter and replace if necessary. Let me know if you have any other questions.

Anonymous

  • 921 Answers
  • Posted on Apr 27, 2010

SOURCE: 2001 Ford Explorer idles rough when at a stop in

sounds like a vacuum intake leak..check a those little tubes for cracks and security. also check your transmission levels, this will sometimes cause a surging problem while driving..if all this checks good then it might be dirty or clogged injectors..purchase a can of Sea Foam from Autozone $10 pour in 1/2 can to half tank of gas and drive around for thirty minutes..highway driving preferred, and see if that will clean up the fuel system.Can i get some feedback, thanks

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How does it idle in park , does it run ruff or smooth? Are any lights lit on the dash , check engine etc. ? Could have a partially plugged IAC air passage .idle air control (IAC) valve ! The engine computer uses the IAC to control idle , when under a load such as when put into gear the computer raises the idle ! It does this by allowing more air to by pass the closed throttle into the engine raising the idle ! If these air passages clog they restrict the air flow an cause a idle problem ! Now if it runs ruff at idle in park you could have vacuum leak ! Rough Idle How to Fix Ford Taurus Engine Stalls at Stop Signs
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Rough idle then stalls

Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.
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When braking my 1999 ford explorer engine shut off

Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

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