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Old 01-08-2017, 10:06 AM   #1
_Ben
FF.Com.Au Hardcore
 
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Join Date: Feb 2010
Location: Gold Coast
Posts: 537
Default AU2 XR6 VCT takes ~5-10 seconds of cranking to start

Hey guys,

Got an AU XR6 VCT ute with 265k ks on it, 5 speed manual (if it makes a difference) that consistently takes ages to start
This is what happens every time
- Crank for a second or two
- it splutters as it gets fuel
- not enough fuel to run, if you stop cranking it instantly stalls
- keep cranking and it'll jump to life after ~5 seconds

Its running a full exhaust (extractors, high flow cat (has a small leak around a weld), one big muffler), has a pod on the standard intake piping. I always run 98 in it, and I give it a flogging :P

So far I've done
- Replace fuel filter
- New plugs
- New leads + coilpack
- Service
- Cleaned the throttle body / intake

When its cold it seems to bunnyhop a little bit (especially while turning), but this seems to be better since I did the coilpack and leads. It did also have a misfire when going full blast in 1st sometimes, but again that seems to be fixed

Heres a video of it

https://www.youtube.com/watch?v=MxyBpOIvHwg

My thoughts are now that it could be fuel pump?
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Old 01-08-2017, 10:50 AM   #2
Maka
Au Falcon = Mr Reliable
 
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Location: North West Slopes & Plains NSW
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Default Re: AU2 XR6 VCT takes ~5-10 seconds of cranking to start

Is the fuel pump priming when turning the key? Anyway, the pump will prime & can still be stuffed lol.

If its cutting out around roundabouts or flooring it, the fuel pump is not delivering the appropriate fuel flow & is worn out. Probably need to replace it, good luck!

Edit, check to make sure your inlet manifold bolts are tight & the gasket is not leaking.

cheers, Maka
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Proud owner of a optioned keeper S1 Tickford Falcon AU XR6 VCT - "it's actually a better-balanced car than the XR8, goes almost as hard and uses about two-thirds of the fuel" (Drive.com 2007)
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