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Ford fg Lumpy Idle - coldstart


Duffman19.

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  • Member For: 6y 2m 21d

Gidday Guys,

 

New to the forum, experiencing an issue with my fg falcon xr6 n/a, That I am yet to diagnose. Thought I'd try and seek out some help, avoiding having to take the car into the shop.

 

Every first cold start of the day, or when it cools down enough. The car has a lumpy idle until the choke comes off and the cars getting upto temp. Last about 30-40 seconds depending on the temperature Almost sounds like a cammed engine sound. A really slow Wom Wom sound, to describe it, that doesn't speed up with revs. The noise gets fainter as it warms up until it's none exist. Performance wise car runs fine.

 

Things I've tried -

Pulled the drive belt off, started the car. Sound still persists.

 

Cleaned the throttle body

Checked plugs and coils

Checked if there's any fault codes - nothing

Sprayed brake cleaner around the inlet manifold to check for leaks - no leaks

 

any ideas? Or if one could point me in the right direction that would be much appreciated.

 

Cheers

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