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Rough idle 

 

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 Post subject: Rough idle
Posted: Sat Feb 03, 2007 8:08 pm 
Oompa Loompa
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Location: perth
WA, Australia

Have a 04 ba 6 cyl ute and when its warm -hot it idles rough ,not to the point of stalling ,but u can feel the shudder.Now ford have it 3 times and keep resetting the computer.No codes r showing.Now im using 10w/40 oil in it,and they reckon its too thick and could be causing the rough idle.They use 10w/30 oil.They did say the tps causes it sometimes and wont show up as a code.Its a manual,tehy reckon the throttle body etc are all ok.Any ideas.
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Posted: Sat Feb 03, 2007 11:05 pm 
Getting Side Ways
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Ride: BA Falcon Classic

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usually you get a rough idle from your injectors, leads or sparkies being a bit old and worn out, but your car is pretty new so i doubt it would be any of those, worth a check though.

 

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Posted: Wed Feb 07, 2007 9:54 pm 
Oompa Loompa
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yeh cheers shannon,but i dont have leads ,got platinum plugs,yeh maybe an injector is stufed
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 Post subject: Re: Rough idle
Posted: Thu Feb 08, 2007 3:47 am 
Getting Side Ways
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Ride: 2003 BA XT

Power: 141 rwkw

Location: Perth
WA, Australia

Sniffer wrote:
Have a 04 ba 6 cyl ute and when its warm -hot it idles rough ,not to the point of stalling ,but u can feel the shudder.Now ford have it 3 times and keep resetting the computer.No codes r showing.Now im using 10w/40 oil in it,and they reckon its too thick and could be causing the rough idle.They use 10w/30 oil.They did say the tps causes it sometimes and wont show up as a code.Its a manual,tehy reckon the throttle body etc are all ok.Any ideas.


It says on the cap.... 10w/30.....
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Posted: Fri Feb 09, 2007 10:49 pm 
Oompa Loompa
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Location: perth
WA, Australia

changed oil today ,put 10w/30 in it,no difference still idles rough.
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Posted: Fri Feb 09, 2007 11:06 pm 
Getting Side Ways
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Ride: 93 ED sedan

Power: 161 rwkw

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Using 10W40 oil wouldn't hurt it anyway. If you were towing something close to maximum allowable, I'd use Penrite 10W60.
Anyway, check for vacuum leaks, tighten inlet manifold bolts.
I have seen when the manifolds weren't machined properly, ( top & bottom halves for the BBM), and this gives sh!tty idle.
Does your BA have the little rubbers on top of the coils?

 

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Posted: Sat Feb 10, 2007 8:08 pm 
Oompa Loompa
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thanks for the reply cj.I dont know about the rubber bits mate.Going to try another dealer.
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Posted: Sat Feb 10, 2007 8:10 pm 
Getting Side Ways
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oil wouldnt cause a rough idle??

 

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Posted: Sat Feb 10, 2007 8:15 pm 
Getting Side Ways
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Sniffer wrote:
thanks for the reply cj.I dont know about the rubber bits mate.Going to try another dealer.


The rubbers were to stop the coils bouncing off the s/plugs.
Apparently they had troubles with this on dirt or rough roads.

 

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