Flooded engine

2005 NISSAN ALTIMA
169,000 MILES • 2.5L • 4 CYL • 2WD • AUTOMATIC
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KARLOSHICKS18
  • MEMBER
  • 3 POSTS
I have had the car for about two or three months, ever since i have gotten the car the spark plugs and the engine seem to always get flooded out with fuel, causing a crank no start. i have change little things over time such the crank and cam shaft sensors, fuel pump, ignition coils, fuel injectors, and the fuel line. i have taken the car to a shop and my mechanic ran a diagnostic and couldn't pinpoint why the spark plugs constantly get flooded out. any new advice would be appreciated.
Jul 2, 2019 at 12:16 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

What makes you believe it is a fuel delivery issue?

https://www.2carpros.com/articles/car-cranks-but-wont-start

Has anyone verified spark when it would not start?

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Are there any codes stored in the system?

Roy

Jul 2, 2019 at 12:24 AM
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KARLOSHICKS18
  • MEMBER
  • 3 POSTS
i don't have any codes at all surprisingly, usually i’d have a lingering p0420 code. i can take all the spark plugs out and they’re soaked in fuel and when i look down the chambers i see puddles of fuel in each one. i tested out the spark plugs when i dried them off and was able to confirm they are definitely getting spark.
Jul 2, 2019 at 1:43 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Okay, if you have spark and fuel, check the compression to see if the valve timing is correct.

https://www.2carpros.com/articles/how-to-test-engine-compression

Roy
Jul 2, 2019 at 1:47 AM
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