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ea falcon exhaust suction issue 

 

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 Post subject: ea falcon exhaust suction issue
Posted: Thu Jun 12, 2014 2:10 pm 
Smokin em up
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Age: 21

Posts: 233

Joined: 2nd Sep 2013

Ride: 1988 5spd DOHC EA Falcon S

Location: ACT
NSW, Australia

Car : EA 3.9L Spac

G'day, i've been chasing this miss for a while, it was after a throttlebody clean and basically if i put a piece of paper over the tailpipe, it'll get violently sucked in when the car misses.

I've re lapped the valves, they're not leaking, i've done a leakdown test already, all electrical components are in good working order.

What on earth could cause suction in the exhaust? Any tips would be greatly appreciated, cheers.

 

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Rolling around with a Barra 182 - equipped 1988 EA falcon

http://www.fordmods.com/the-garage-f53/ ... 27639.html

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