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Rough idling and hot or burnt smell of coolant

Tiny
BRUCEWC
  • MEMBER
  • 2004 FORD EXPLORER
  • 4.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
The truck idles rough and gives off a hot or burnt smell of coolant. It did overheat and leak maybe a half cup of coolant out of the reservoir but has not done it again in about two to three months.
Wednesday, February 14th, 2018 AT 2:20 PM

1 Reply

Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
If there is white smoke coming out the tailpipe then the rough idle and the burning coolant smell could be because of a blown head gasket, but I think rather you are smelling the burning coolant from under the hood. If that is the case than perhaps you have a coolant leak and it is leaking onto perhaps a ignition component and causing the misfire, perhaps leaking on a spark plug wire.
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Wednesday, February 14th, 2018 AT 5:41 PM

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