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1.9 Rough Idle and Misfire - A quick fix!!

Posted: 03 Feb 2010, 20:51
by T25Convert
My 1.9 has suffered a persistent rough idle, a stutter on acceleration, and a persistent mis-fire for the last few months.

After checking the usual suspects of fuel filters, plugs, leads rotor arm, dizzy cap etc. with no joy, I found that the servo hose, despite looking fine, had gone porous under the fibre outer.

After a quick fix with a section of washing machine inlet hose the engines like new.

Might upgrade to proper servo hose as the washing machine hose is a bit soft, but can recommend this to anyone suffering poor running!

Word of warning though, the old hose had steel reinforcement in it, which made a rather large hole in my finger when I grabbed hold of it and twisted.... :(

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 04 Feb 2010, 09:40
by Aidan
common issue this, keep flagging it up, causes high hc on mot with correct co, but mot fail, and crap running often when extreme as you discovered

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 04 Feb 2010, 11:22
by CovKid
I mentioned washing machine inlet hose several months ago. It available in 'chilli hot red' and 'ice blue' ofcourse :D

Varies in quality though. Don't use really cheap stuff - some comes braided and you don't want the vacuum to suck the pipe flat or get so hot it collapses. Mine is still working great many months later.

Can concur on braid in old hose - very sharp.

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 04 Feb 2010, 12:45
by T25Convert
I've got the 'chilli-red' but its cheap and keeps sucking flat! Curses to Wickes and their cheap hose!

Got some proper reinfocred servor hose now though - the length I was sent is enormous, so if anyone wants a bit PM me and I'll pop it in the post!

Cheers,

Alex

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 04 Feb 2010, 14:47
by faggie
anyone got a picture of the servo hose is this the one in engine bay connected to one way valve

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 04 Feb 2010, 15:13
by CovKid
Thats the one :D

"Curses to Wickes and their cheap hose!" :rofl

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 05 Feb 2010, 14:49
by Dave W
My 1.9 dg is also running rough. Just thought thats how they all were???!!!!?!. But please tell me where is this pipe. Mine has a LPG conversion on it so theres a lot of braided hose on it. Has anyone a piccy of this pipe please. :lol:

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 05 Feb 2010, 20:12
by thelonegunman
Dave W wrote: Has anyone a piccy of this pipe please. :lol:

Hi: mine was running rough until i changed the pipe.
Here is a picture of Kevtherev's that shows the pipe.

https://club8090.co.uk/forum/viewtopic.p ... 2&start=15" onclick="window.open(this.href);return false;

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 05 Feb 2010, 20:40
by sjmtlewy
Whats the diameter of the hose? Is the 10mm JK servo hose the right stuff?

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 05 Feb 2010, 20:56
by T25Convert
sjmtlewy wrote:Whats the diameter of the hose? Is the 10mm JK servo hose the right stuff?
It is, but you get 1.5m of the stuff, when you only want a little bit! I've got a fair bit left, so PM your address and I'll stick a length in the post to you.

Cheers,
Alex

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 05 Feb 2010, 22:05
by sjmtlewy
Cheers mate, but unfortunately your a bit late - I bought some a couple of weeks ago and haven't got round to trying it yet :roll:

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 06 Feb 2010, 21:13
by batmangb
Any of that hose left at all? I'm in South London too, could swap for some beers!

Ben

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 06 Feb 2010, 21:53
by chuckle-bus-tom
so, washing machine hot water pipe? As in this: http://cgi.ebay.co.uk/HOTPOINT-1-5M-HOT ... 2ea3a224ff

Re: 1.9 Rough Idle and Misfire - A quick fix!!

Posted: 06 Feb 2010, 23:46
by CovKid
Exactly right. Some types are braided and hold up well. Mine has and been on nearly a year now. Cheaper versions are just plastic and no way of knowing really unless you cut into them. A rough and ready way might be to bite the hose between your teeth and see if its easy to collapse. :D

I could have ordered the proper stuff but as it was a Sunday I had to improvise and as it turned out, it did the job fine.