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Author Topic: Dodgy throttle again  (Read 1785 times)

Offline don-tucker

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Dodgy throttle again
« on: 05 February 2008, 12:14 »
I'm back,still with the same symptoms ,being the revs slow down very slowly and even remain some times if held at about 1500 rpm ,seems ok at higher revs,up to now I have removed the throttle body and cleaned,taking off the plastic cover at the back and all seems fine,replaced vacume pipes and hoses,cleaned the AMS.
It is a 2ltr 8 valve Mk3 has anyone got any ideas please?
Don
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2003 Golf Mk 4 1600 16 valve

Offline Horney

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Re: Dodgy throttle again
« Reply #1 on: 05 February 2008, 12:28 »
DO these have an ISV? If so it could well be that bad boy!

Nick
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Offline Pete Taylor

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Re: Dodgy throttle again
« Reply #2 on: 05 February 2008, 12:37 »
I don't believe they have an ISV. When it stalls, does it start up again straight away? Fuel pump relay will be the next replacement
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Offline don-tucker

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Re: Dodgy throttle again
« Reply #3 on: 05 February 2008, 12:42 »
No they haven't got an ISV,I don't know about the fuel pump relay as it does not stall .
Don
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2003 Golf Mk 4 1600 16 valve

Offline Pete Taylor

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Re: Dodgy throttle again
« Reply #4 on: 05 February 2008, 12:52 »
Did you clean out the breather hoses whilst you were there?
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Offline don-tucker

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Re: Dodgy throttle again
« Reply #5 on: 05 February 2008, 12:57 »
Yep Pete,they are new.When I try to reset the TB by switching on the ignition for a few mins.I dont hear any clicking or anything else,should I?
Don
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2003 Golf Mk 4 1600 16 valve

Offline Pete Taylor

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Re: Dodgy throttle again
« Reply #6 on: 05 February 2008, 13:03 »
Did you check the idle switch?
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Offline don-tucker

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Re: Dodgy throttle again
« Reply #7 on: 05 February 2008, 14:01 »
Where is the idle switch? Pete if it,s the small contacts like a relay in the black plastic cover then ,yes i did.
Don
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2003 Golf Mk 4 1600 16 valve

Offline Pete Taylor

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Re: Dodgy throttle again
« Reply #8 on: 05 February 2008, 19:31 »
Nope, it's a tiny switch on the throttle body that the accelerator cable mechanism stops on. So when you're off the gas it presses the switch in to tell the engine to idle. pull the accelerator open at the throttle body and give the switch a good spray with wd40 and a clean up. Snap the cable stop back on it a few times to make sure it's loose and clicks when pressed
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Offline don-tucker

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Re: Dodgy throttle again
« Reply #9 on: 06 February 2008, 08:04 »
This car hasn't got an idle switch,I wish it had,it would be something else to try.
Don
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2003 Golf Mk 4 1600 16 valve
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