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AU Running on 3 Cylinders 

 

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 Post subject: AU Running on 3 Cylinders
Posted: Mon Feb 25, 2019 12:44 pm 
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Ride: AU Falcon

Location: Sydney
NSW, Australia

Hey guys

My AU ute crapped itself last week.

A few days prior I noticed a bit of a shudder/hesitation here and there when accelerating.

Then on the day it went bad, I was out driving and it suddenly went really rough when accelerating, then about 10 min later started shaking and going worse.

It chewed through a heap of fuel in like 5 minutes almost running me out. the engine overheated too, which it has never done.

I've had some time to check over it all now, cylinder 2 and 5 ain't got no spark (I know it's a wasted spark so I get the 2 not working together)

When I pull the leads off 2 and 5 at idle, the revs don't drop at all.

Replaced plugins and leads, still the same.

Starts easy, no trouble.

If I rev it to 4-5k, it suddenly goes smooth.

Spitting out a lot of fuel from the exhaust though.


Would anyone have any suggestions on what to check or ideas what it could be?

Thanks heaps in advance.
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 Post subject: Re: AU Running on 3 Cylinders
Posted: Fri May 24, 2019 11:04 pm 
Parts Gopher
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Ride: 94 XG Falcon ute 4L 5spd

Location: melbourne
VIC, Australia

Im not right up on the au elec's but sounds like maybe one of the coil packs has died, which would explain the raw fuel out the exhaust as it hasnt been burnt in the cylinder.

 

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 Post subject: Re: AU Running on 3 Cylinders
Posted: Sat May 25, 2019 11:02 pm 
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Ride: 93EB Fairmont / BA Falcon XR6T

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Yeah im guessing the coil as well. AU only has 1 coil. Have fun changing it...

 

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93 EB II Fairmon8 with 17' EL GT's / Clear indicators / H.I.Ds / Sports exhaust / Lowered 2' / K&N / XR6 ECU.
2004 BA MKI XR6T in Lightning Strike paint / K&N / XR8 bonnet / BF lights and a few tweaks.

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 Post subject: Re: AU Running on 3 Cylinders
Posted: Sat May 25, 2019 11:49 pm 
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93EB wrote:
Yeah im guessing the coil as well. AU only has 1 coil. Have fun changing it...


from memory it'[s similar to the EF coil pack. there is no single coil.
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 Post subject: Re: AU Running on 3 Cylinders
Posted: Sun May 26, 2019 8:23 am 
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Ride: 93EB Fairmont / BA Falcon XR6T

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Yes i mean a pack all in 1. Not individual coils like the B series on each plug.

 

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93 EB II Fairmon8 with 17' EL GT's / Clear indicators / H.I.Ds / Sports exhaust / Lowered 2' / K&N / XR6 ECU.
2004 BA MKI XR6T in Lightning Strike paint / K&N / XR8 bonnet / BF lights and a few tweaks.

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 Post subject: Re: AU Running on 3 Cylinders
Posted: Sun May 26, 2019 4:49 pm 
Parts Gopher
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Age: 32

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Joined: 30th Apr 2009

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Ride: 94 XG Falcon ute 4L 5spd

Location: melbourne
VIC, Australia

I thought the au had two coil pack's with three leads of each one

 

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 Post subject: Re: AU Running on 3 Cylinders
Posted: Sun May 26, 2019 10:23 pm 
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1tuff wrote:
I thought the au had two coil pack's with three leads of each one



it's actually all one piece from memory. i have an EF version here somewhere which is the same but differant wiring connector.
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