Cranking but not starting put gas in it?

Tiny
JAYMELYLES48
  • MEMBER
  • 2007 FORD FOCUS
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Replaced serpatine belt then tried to start it it just continuosly cranks put gas in it replaced and checked all relays and fuses don't know why it will not turn over
Tuesday, February 24th, 2026 AT 11:19 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,920 POSTS
So by the serpentine belt is the crankshaft position sensor. If the old belt took out the wiring the engine will not start, here is a video to show the sensor and location so you can check it out.

https://www.youtube.com/watch?v=_xoGyRrHYbM&pp=0gcJCaIKAYcqIYzv

If the sensor looks okay we need to go over this video to see which system is failing so we don't go down the wrong trail. ie, compression, fuel or spark.

https://www.youtube.com/watch?v=lXLJbuAZ4CE

Please upload a short video in your response of the problem, so I can see what's going on. Please go over these guides and get back to us.
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Wednesday, February 25th, 2026 AT 9:00 AM

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