how do i replace the serpentine belt on a 2012 ford focus


Asked by Jun 13, 2016 at 06:31 PM about the 2012 Ford Focus SEL Hatchback

Question type: Maintenance & Repair

belt broke because of a bad alternator. that was replaced. the belt goes
behind what looks to me to be the timing belt though it is not geared in any
way. Do I need to take that belt off and if so how.

5 Answers


No the serpentine Does NOT go behind the timing belt! The diagram looks like a single belt? some Fords have 2 belts not that uncommon BUT 2012 Focus sure appears to run only one belt.

Tom Demyan

Should be a belt tensioner that needs to be pulled back to install the belt. A long socket wrench should work to move it.


I know what I'm looking at. The outer belt goes from the vibration dampner to a single pulley below it. The inner pulley goes from the dampner to an idler to a tensioner to the alternator.


update. The outer belt that goes down from the dampner goes straight down to the a/c compressor. Anyone that has any useful information on how to remove that belt so i can replace the inner one please let me know.


Note to self. There's a tool that goes between the pulley and belt to roll it off when you turn the pulley. Also used to put belt on. can be rented from most big chain auto parts store for free when returned. Not the tension pulley tool so don't get that one.

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