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engine vibration misfire ??????? 

 

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 Post subject: engine vibration misfire ???????
Posted: Mon May 03, 2010 12:39 pm 
Fordmods Newbie
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Age: 49

Posts: 2

Joined: 3rd May 2010

Ride: au xls v8 ute

Location: perth
WA, Australia

AU V8 ute auto have a weird free running vibration mainly on decalleration 1300 to 900 rpm shacks the whole car motor completley rebuilt full balance goes very well. vibration occurs in neutral or drive bad at cruise 60to 70km/h.Idle is slighty rough does feel like a miss just can not pin point which cylinders :cry:
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 Post subject: Re: engine vibration misfire ???????
Posted: Mon May 03, 2010 4:27 pm 
EFI Guru
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Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Have you tried pulling leads? Could be the converter too. Was it doing this before the rebuild?
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 Post subject: Re: engine vibration misfire ???????
Posted: Mon May 03, 2010 9:18 pm 
Getting Side Ways
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Just a thought but when you say "rebuilt full balance" do you mean the balancer itself is new or the motor?
It's just that if it occurs at certain rpm only, a failing balancer can cause such a rough running vibrating effect at certain rpm.

 

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 Post subject: Re: engine vibration misfire ???????
Posted: Tue May 04, 2010 4:33 pm 
Fordmods Newbie
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Age: 49

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Joined: 3rd May 2010

Ride: au xls v8 ute

Location: perth
WA, Australia

thanks guys yes the engine recond fully and a new balancer install finally found it last night the new balancer not assembled correctly slight out of phase putting all the timing out .Drives like a new one finally Thanks for help
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