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Old 06-06-2002, 13:27   #1
Cliff
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Post ZS 180 - Not Slowing Down !!

Hi all

Thought you'd be interested in a little problem I've been having with my ZS 180. Basically it doesn't want to slow down when lifting off the loud pedal. The revs stay up at whatever speed they were and gradually decrease after about five seconds, or longer sometimes. I went about a mile the other day before it decided to slow down. It's nice to find I have cruise control fitted free of charge but a bit disconcerting on crowded motorways. It's being looked at now, for the second time in a week. First time it came out worse than it went in. The garage (Evans Halshaw, Reading) say they haven't got a clue what's causing it. I think they just haven't bothered to look very hard. I remember an MG Maestro Efi I had back in the 80s did a similar thing so they should have some idea how these things work by now. I've got one of their loan cars now so they should have a bigger incentive to get it fixed and returned to me asap.

I'll keep you posted. Great car otherwise.

Cliff =P
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Old 06-06-2002, 13:38   #2
fizz
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Post Re: ZS 180 - Not Slowing Down !!

maybe your throttle body sticking? Or throttle cable?
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Old 06-06-2002, 14:14   #3
snellgrc
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Post Re: ZS 180 - Not Slowing Down !!

yep, best give the throttle body and cable a check to make sure its resetting to what it should be

wouldnt think that an idle control vavle stuck open would hold the car at speed

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Old 06-06-2002, 15:00   #4
Cliff
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Post Re: ZS 180 - Not Slowing Down !!

Already checked the mechanical stuff before I bothered the garage. The throttle pedal returns ok, the linkage at the throttle body is moving freely, the carpet's not in the way, etc. I reckon it's a fuel/air mixture or electronic sensor problem. There's a mention of something similar on the MG Owners Club site where a road test of the ZT makes reference to an earlier test of the ZS. Apparently the ZS they tested suffered from a surging throttle response. Could be caused by the same (unheard of !)problem mine's now got.
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Old 06-06-2002, 20:27   #5
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Thumbs up Re: ZS 180 - Not Slowing Down !!

Rest assured - it won't be a throttle body problem.

Make sure the cable is correctly adjusted.
Incorrect adjustment will cause havoc.
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Old 07-06-2002, 12:48   #6
Cliff
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Exclamation Re: Re: ZS 180 - Not Slowing Down !!

That's exactly what I thought... but guess what. They've ordered a throttle body .

More news on Monday


Quote:
Dr Dave wrote:
Rest assured - it won't be a throttle body problem.

Make sure the cable is correctly adjusted.
Incorrect adjustment will cause havoc.
>=(
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Old 07-06-2002, 22:56   #7
Brown Wings
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Angry Re: ZS 180 - Not Slowing Down !!

Hope your problem gets fixed quickly! Sticking throttle is not good, safety-wise :red:
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Old 10-06-2002, 14:47   #8
Cliff
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Post Re: ZS 180 - Not Slowing Down !!

Well, they've fitted the new throttle body and everything seems ok. =P
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Old 25-06-2002, 07:41   #9
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Good - hope it stays OK, cliff
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