No compression, will not start

2004 FORD FUSION
90,000 MILES • 1.6L • 4 CYL • 2WD • MANUAL
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PETE STAINES
  • MEMBER
  • 2 POSTS
Car will not start due to no compression. cam belt turning not broken. did go into limp mode.
Mar 12, 2019 at 11:57 AM
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SCGRANTURISMO
  • ASE Certified Mechanic
  • 4,897 POSTS
  • ASE Certified Mechanic
Hello,

If your vehicle has no compression, the issue as to why it has no compression must be fixed before it will start. Compression, fuel, and an ignition source (spark) is what is required for your vehicle to start. An engine with no compression can be caused by worn/damaged piston rings, worn/damaged valves, blown head gasket, cracked/damaged engine block, cracked damaged cylinder head. I have included a couple of links down below for you to go to.

https://www.2carpros.com/articles/symptoms-of-low-compression
https://www.2carpros.com/articles/the-reasons-for-low-compression

Please go through these guides and get back to us with what you find out.

Thanks,
Alex
2CarPros
Mar 12, 2019 at 2:26 PM
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PETE STAINES
  • MEMBER
  • 2 POSTS
Can camshaft broken sensor cause lack of compression?
Mar 13, 2019 at 9:55 AM
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SCGRANTURISMO
  • ASE Certified Mechanic
  • 4,897 POSTS
  • ASE Certified Mechanic
Hello again,

No. The Camshaft Position Sensor (CMP) is used by the Power-train Control Module(PCM) to synchronize the firing of the Coil On Plugs (COP) of the individual cylinders. It uses a ring mounted on the end of the camshaft to determine where the number one cylinder is and is not a part of the combustion chamber in any way.

Thanks,
Alex
2CarPros
Mar 13, 2019 at 7:14 PM
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