Question about 2001 Ford Focus

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2001 ford focus misfire cylinder 2

Idles Rough, Runs okay on the highway. Wants to die at stop lights. Noticeable loss of horsepower. Plugs and wires changed. Fuel pump removed cleaned and tested. Coil pack maybe?

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  • Ford Master
  • 21,873 Answers

Can you confirm cylinder two is getting spark ?
If it is, it could be something mechanical or the fuel injector.

Posted on Feb 11, 2014

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Posted on Jan 02, 2017

chuck943
  • 783 Answers

SOURCE: engine code p0307 cylinder #7 misfire

It could be carbon deposits on valve seats keeping valves from totally closing. You can try getting you a can of motorcraft PM3 top end engine cleaner and get engine up to operating temp then remove one of the small vacuum lines from the intake and draw the contents of the can slowly into the engine.After you have drawn in the contents shut engine off and let it soak for about 45 minutes then crank it back up and let it run until it clears. Now it will smoke like a forrest fire while you are doing this so don't be alarmed,just tell the neighbors you are spraying for mosqitos.This may cure the problem. If not you may be looking at a valve job.
This can be verified with a compression test if this is what is causing it.

Posted on Feb 05, 2009

  • 105 Answers

SOURCE: 2001 Ford Windstar runs rough.

remove the coil pack and look at bottom of it if it shows any cracks coil is bad very common on these vans if you have a noid light check for injector pulse on #4 if you have pulse and good blue spark most likely the injector is bad you have to remove upper plenum to get injectors out let me know how you make out

Posted on Jun 04, 2009

  • 76 Answers

SOURCE: Misfire on a ford focus

yes if 1 and 4 are on the same coil pack, thats the place to start and i think thats your answer

Posted on Oct 03, 2009

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  • 1 Answer

SOURCE: 3.8 liter ford mustang idles rough, runs ok at 70

is there any ways to test the coil pack,to make sure is bad.
does anyone had a schematict of it.

Posted on Jun 28, 2010

Ford007
  • 131 Answers

SOURCE: My 2001 Ford Windstar has

You still need to replace the plugs and wires regardless of the visual appearance. If it persists then a compression test and fuel injector swap is needed. If it persists then more expensive parts and tests are needed to see if it s internal engine issue or lean running issue or clogged EGR port.

Posted on Oct 05, 2010

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For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- OBD-II Trouble Code P0300? http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html
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This will help.

Thanks.

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I would start with plug wires rubbing on something and created a short.and is not compleatly worn through. a cheep place to start. good luck with it.

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