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hates pulling away

  • paul
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10 Jul 2010 12:18 - 10 Jul 2010 12:20 #3768 by paul
hates pulling away was created by paul
i have a 98 single cam 16v with about 100 000 miles on the clock
and it has no power pulling away and keeps stalling all the time
i have taken off the throtle body and cleaned it with carb cleaner
but this does not seam to have done any thing i think it must be
the i c v but i dont know wot it looks like how much a new one is
or if i can just clean it can any one shed any light on this thanks paul
Last edit: 10 Jul 2010 12:20 by paul.

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10 Jul 2010 12:57 #3770 by facade
Replied by facade on topic Re:hates pulling away
Check the obvious first:

try pushing it, or jack up each wheel in turn and make sure that they go around easily.

Check that the air cleaner isn't blocked solid.


Make sure that the throttle pedal opens the butterfly in the intake.

See if it has 4 compressions.


Then look to see if the exhaust, specifically the catalyst, is blocked, some people suggest disconnecting the downpipe for a quick test.

Then test the fuel pressure, you are looking for low pressure at the injectors, like below 40psi.

A CV joint has no effect in 2wd, so it isn't that.

If it suddenly breaks, go back to the last thing that you did before it broke and start looking there :)

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  • paul
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10 Jul 2010 13:09 #3771 by paul
Replied by paul on topic Re:hates pulling away
hi it rolls ok and it drives ok its just when you pull away it stalls unless you rev it and even wors when you reverse i have jacked it up and checked if brakes were binding and all was ok

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  • paul
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10 Jul 2010 13:11 #3772 by paul
Replied by paul on topic Re:hates pulling away
just read bit about cv joint i ment idle control valve i c v

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10 Jul 2010 13:36 #3773 by mlines
Replied by mlines on topic Re:hates pulling away
I would put my money on the catalytic converter breaking down.

Martin

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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  • paul
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10 Jul 2010 13:59 #3774 by paul
Replied by paul on topic Re:hates pulling away
when you say braking down do you mean looks ok but it not doing
a chemical reaction or crumbeld away or melted (will it be somthing i can see )

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10 Jul 2010 16:10 #3775 by facade
Replied by facade on topic Re:hates pulling away
Ah sorry, idle control valve, no, has no effect when you are pushing the pedal. Causes ridiculously fast idle or stalling at tickover when gone.

The catalyst blocks up inside. You can take it off and whack a hole through with a broom handle, but it will not pass the MOT next time. Also you might get the engine management light to come on if there are 2 exhaust sensors, one each side of the catalyst.

What was the last thing you did before this happened? It hasn't grown bigger tyres or something has it?

If it suddenly breaks, go back to the last thing that you did before it broke and start looking there :)

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  • paul
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10 Jul 2010 17:53 #3776 by paul
Replied by paul on topic Re:hates pulling away
i havent done any thing it is standard its been doing it
for a while funny you should say about high tickover when it
rains for the first 5-10minits it reves at about 2500 rpm with
no load on the engine which is quite high when i pull up at
a junction and dip the clutch

when its not been raining it is very easy to stall if you were
doing a hill start you would have to rev the engine and slip
the clutch more than you would on a normal vehical
its almost like you dip the clutch put it in gear and as soon as you bring the clutch up just befor its got any load on it the reves drop and it stalls i think i am now in the habit of
bliping the throtle as i pull away i think other road user must
think im a boyracer or impaitent

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  • marshman
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10 Jul 2010 18:46 #3777 by marshman
Replied by marshman on topic Re:hates pulling away
Meaning, the baffles and chambers inside the catalytic converter have deteriorated and plugged exhaust. Not visible, unless you see actually have holes on the outside, but you would notice the exhaust and noise. It's over ten years old, cut it out and straight pipe it for now.

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