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Engine miss fire @ 3000RPM 


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 Post subject: Engine miss fire @ 3000RPM
Posted: Sun May 18, 2008 4:39 pm 
Fordmods Newbie

Age: 45

Posts: 3

Joined: 11th May 2008

Ride: efxr6

Location: snow town
SA, Australia

Hi i have a EFxr6 manual and have had a miss fire i think @ around 3000 RPM .Its like a cross fire from a lead .I have changed the plugs about two months ago.If it is the coil pack do you need to take the inlet manifold off to get to it or can you remove it from under the car, and how much are they, or could it be somthing else! THANKS....



Nothing is impossible it just costs more

Posted: Sun May 18, 2008 7:22 pm 
Tyre Shredder

Age: 48

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

Check the crank angle sensor behind the harmonic balancer. Make sure the harmonic balancer is not rubbing on it.
If that's ok change the ignition leads & also make sure you use ngk spark plugs. Spark plugs that you have to screw the end on the plugs are no good don't use them.
NO you don't have to take the inlet manifold off to get to the coil pack. You get them from under the car.



FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

Posted: Sun May 18, 2008 8:17 pm 
Getting Side Ways
User avatar

Age: 29

Posts: 4326

Joined: 30th Oct 2006

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Ride: Envi EF

Location: Grafton
NSW, Australia

Change the leads, they can break down under load.



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