Question about 2007 Ford Explorer Sport Trac

4.0 V6. Why does it have a rough idle?

Removed throttle body and noticed it doesn't shut all the way stays open a little bit is this normal or is this causing my rough idle.

1 Answer

paulmacintyre

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Ford Master
3,218 Answers

This can be normal. A rough idle can be caused by numerous things. Usually a vacuum leak is most common. You may also be experiencing a misfire. Have you scanned for codes that may be stored to aid in this repair?

Posted on Dec 19, 2015

Josh j Dec 20, 2015

No cel or codes ive had the intake off nothing looks bad idk its terrible

6 Suggested Answers

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2 Answers

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Posted on Jan 02, 2017

Anonymous

6 Answers

SOURCE: fuel injection? 1990 Topaz-4 cylinder

since the car sat for 6 months it could be a vaccuum line the lines are rubber or hard plastic the tend 2 dry rot or chewed by small rodents, while the car is running listen 4 whistle or check for cracks or lines off completely

Posted on Sep 29, 2008

mike loshbough

1011 Answers

SOURCE: 1999 S10 Blazer 2WD 4.3L V6. Starts hard, idles rough.

you have a single injector under the intake plenum it has 6 branching fuel leads off of this.A very common problem is the regulator attached to this and it leak off fuel which falls into the intake .causing this problem. it needs to be replaced .i have done at least 80 of these in my career.this will fix your problem.thanks for choosing fix ya

Posted on Mar 04, 2009

Anonymous

67 Answers

SOURCE: 2004 6 cyl sonata idles high and stays there after

check for vacum leak

Posted on Mar 07, 2009

Nate Stansfield

11896 Answers

SOURCE: My 2007 Maxima recently has

If the throttle body is dirty or if you have a vacuum leak, or if the Idle Air Control Valve is bad, these will all cause high idle.

Posted on Nov 10, 2010

sonny fitman

31 Answers

SOURCE: 3.1 L V6 starts without problem, idles rough (drops), then returns to steady idle... Not sure where to troubleshoot problem.

Check your fuel filter.

Posted on Jul 03, 2013

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