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Rough idling at start

Tiny
TOMTURKEY
  • MEMBER
  • 1998 FORD EXPLORER
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
I was having a problem with hard starting I put new plugs in it clean the throttle body and clean the mass air flow sensor, now when you started it revs up to 1,500 few seconds it drops on the 500 few seconds back up to 1,500 few seconds back to 500 for about a minute or two and then it will level out and stay running pretty good.
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Thursday, May 5th, 2016 AT 12:59 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Sometimes changing plugs will do this as it has to readjust the computer. Drive it for a couple of days and make sure when cleaning throttle plate to clean both sides and check for a vacuum line off/broken etc.
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Thursday, May 5th, 2016 AT 3:48 PM

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