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I have a 99 explore. Started idling rough engine sounds like it's going to take off. We have checked spark plugs and wires those are fine. Every time I try to drive it it either dies or won't move. Thinking bad gas but we have used heat in the gas. Any ideas? ? Please help Thanks...

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  • Contributor
  • 24 Answers

My first thought is gas filter or possibly clogged gas line.

Posted on Nov 16, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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keemo68
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SOURCE: 2000 Nissan Sentra rough idle

a rough idle/high idle is indicative of a malfunctioning TPS(throttle position sensor) this is located on the throttle body ,is attached with (2) screws/bolts to the throttle body housing right off the butterfly shaft. it has either 2 wire or 4 wire plug. the replacement part can be purchased at locale auto parts store. I would also agree that a full service and tuneup be done. this will help with performance and will increase the fuel efficiency. please rate this...thanks

Posted on Sep 25, 2008

emissionwiz
  • 76846 Answers

SOURCE: 99 Dodge Durango Dies When Slowing

Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk 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.

Posted on Feb 09, 2009

  • 67 Answers

SOURCE: 1990 ford ranger 2.3L running rough at idle and while driving

Hi check all the fuse. fi the fuse are ok . remove the coil pack and reverce if the cly missifire change replace the coil if not chage replace the electronic comtrol module ok.

Posted on Apr 20, 2009

  • 73 Answers

SOURCE: My 99 ford explorer cuts out and dies when accelerating in drive

You may have dirty or clogged fuel injectors, may also be problems with the ignition system. Might also check the fuel pressure to make sure the fuel pump is working correctly.

Posted on Mar 28, 2010

  • 921 Answers

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

Posted on Apr 27, 2010

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Several things can cause rough idle on a Ford.

Check all vacuum hoses for, first of all, that they are there, and then that they have not been chewed by mice or squirrels (that happens), or rotted away (that happens too).

Check the coil pack(s) for corrosion at spark plug terminals, check plug wires--at night, the darker the better, raise hood with engine running; blue sparks or lightning jumping around the wires and plugs means your wires are dead--check plugs for fouling or tip wear, if your car has over 100,000 miles check catalytic converter and fuel filter, and check the TPS. The throttle position sensor monitors where the gas pedal is, and since most of the time, it is at the place that makes the car go 55, or idle, the TPS can get worn in those positions and send false signals to the PCM. Fords of that vintage also used a pulsed air feeder that can cause rough idle and is very difficult to service.

Best bet is vacuum leak first, then spark, then fuel, then the out-there stuff.

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1990 ford ranger 2.3L running rough at idle and while driving


Hi check all the fuse. fi the fuse are ok . remove the coil pack and reverce if the cly missifire change replace the coil if not chage replace the electronic comtrol module ok.

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