Technical Car/Motor Issues > Ford Focus - 04 1.6 tries to stall? Miscellaneous
Thread Author: steveo3002 Replies: 8
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New Sat 11 Jun 11 17:09 
 Ford Focus - 04 1.6 tries to stall? - steveo3002
any ideas folks

1600 focus dips it revs low at junctions and almost stalls , ive cleaned the idle valve but it wasnt really dirty , no change , and cleaned up some engine bay earths

Last edited by: VxFan on Sat 11 Jun 11 at 19:29
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New Sat 11 Jun 11 17:31 
 Ford Focus - 04 1.6 1600 focus tries to stall? - swiss tony
Condition of air filter, and spark plugs?
All the breather system (hoses and valves etc) all clean?
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New Sat 11 Jun 11 17:40 
 Ford Focus - 04 1.6 1600 focus tries to stall? - steveo3002
yeah all that stuff appears in order

its like whatver is there to stabilise the idle is a bit slow/clogged up
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New Sat 11 Jun 11 18:23 
 Ford Focus - 04 1.6 1600 focus tries to stall? - swiss tony
ok... vacuum leak somewhere?
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New Sun 12 Jun 11 21:15 
 Ford Focus - 04 1.6 1600 focus tries to stall? - Dave_
On my Escort with the Zetec 16v engine it was the vacuum hose from the inlet manifold round the front to the PCV that caused exactly this problem - check all pipes very carefully for chafing or wear is my recommendation. Better to do it with a cold engine and a bright torch.
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New Mon 13 Jun 11 17:20 
 Ford Focus - 04 1.6 1600 focus tries to stall? - steveo3002
ok i will have another look , nothing obvious jumping out at me though
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New Mon 13 Jun 11 18:27 
 Ford Focus - 04 1.6 1600 focus tries to stall? - carmalade
Although the idle control valve is clean,it could still be the cause of your problem.There is only one breather hose on a 1.6 focus that gives problems and it runs under the inlet manifold.Usual symptoms of a perished breather are surging/hunting at idle and often brings on engine mil light.Also possible fault with road speed sensor can give similar fault.hth
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New Tue 14 Jun 11 09:30 
 Ford Focus - 04 1.6 1600 focus tries to stall? - steveo3002
anything further i can check or do on the idle valve? i sprayed it with carb cleaner not that it was filthy

would it be worth soaking it over night
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New Tue 14 Jun 11 10:33 
 Ford Focus - 04 1.6 1600 focus tries to stall? - Dog
When I was in the mobile car tuning game (14 years) I always used to take the trunking orf the throttle body and clean the critter out using STP carb cleaner thoroughly, and being I had an exhaust gas analyzer etc. (Crypton),
I could see the before and after results.

Of course, I packed the game up in 92, so whether that applies to modern systems, I know not.
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