Vauxhall Cavalier (1988 - 1995) - 95 2.0 2 frequent idling problems,stalls&high revs

Honest John Back Room » Technical matters
View Threaded
Thu 18 Sep 2008 22:08
95 2.0 2 frequent idling problems,stalls&high revs - peter973
Vauxhall Cavalier 2.0 X20XEV engine

My car has 2 frequent idling problems when stationary, but it doesn't do it all the time.

1) Engine idling ok around 800-1000rpm, then suddenly revs drop & engine stalls.
If I'm quick enough, put foot on accelerator, I can catch it & keep revs up.

2) Engine revs. too high & constantly oscillates betwen 1500-2000rpm.

Any ideas what the problem could be & where to start ??

Edited by Pugugly on 18/09/2008 at 22:25

Reply | Report as offensive | Link
Thu 18 Sep 2008 22:41
95 2.0 2 frequent idling problems,stalls&high revs - FotheringtonThomas
www.honestjohn.co.uk/forum/post/index.htm?t=55887&...e
Reply | Report as offensive | Link
Fri 19 Sep 2008 20:50
95 2.0 2 frequent idling problems,stalls&high revs - peter973
www.honestjohn.co.uk/forum/post/index.htm?t=55887&...e


I'll take the flexi hose off the Idle Air Control Valve & squirt some carb cleaner into inlet, before taking it apart.

Can I run the engine with the flexi hose off to circulate the carb cleaner through the valve, does anyone know ??
Reply | Report as offensive | Link
Fri 19 Sep 2008 23:07
95 2.0 2 frequent idling problems,stalls&high revs - topbloke
you can if you are carefull, lift it of completely and it will stall, far better to remove and clean out properly

Edited by topbloke on 19/09/2008 at 23:08

Reply | Report as offensive | Link
Fri 19 Sep 2008 23:13
95 2.0 2 frequent idling problems,stalls&high revs - topbloke
that is a very usefull site as in pictures but its not the whole story, oil should not be getting up there, it will be a blocked breather that is the main problem, do a search and you should find a post of mine detailing what needs to be done
Reply | Report as offensive | Link
Sat 20 Sep 2008 10:17
95 2.0 2 frequent idling problems,stalls&high revs - peter973
sq
Is this the post you mean ??
www.honestjohn.co.uk/forum/post/index.htm?v=e&t=59...7

Is the breather adjacent to the Idle Valve ??

Edited by Pugugly on 20/09/2008 at 11:27

Reply | Report as offensive | Link
Sat 20 Sep 2008 16:44
95 2.0 2 frequent idling problems,stalls&high revs - peter973
www.honestjohn.co.uk/forum/post/index.htm?t=55887&...e


Is the breather the 1" size tube coming from the engine to the large air intake flexi tube through that white 90deg connector in the 1st photo ??

Edited by peter973 on 20/09/2008 at 16:44

Reply | Report as offensive | Link
Sun 21 Sep 2008 18:03
95 2.0 2 frequent idling problems,stalls&high revs - topbloke
no that breather is the one that is putting the oil mist up to the trottle body and iac, the one you want is the smaller bore one from the rocker cover to the throttle body below the butterfly
Reply | Report as offensive | Link
Mon 9 Aug 2010 01:43
95 2.0 2 frequent idling problems,stalls&high revs - peter973
http://www.honestjohn.co.uk/forum/post/index.htm?t=55887&m=635823&v=e

Cleaning the Idle Air Control Valve on 2.0 16V Ecotec Engines

This is now at
http://62.31.178.162/sytemsandsoftwaredevelopment/systems/automotive/How_to/General/ecotecidlevalve.htm

Edited by peter973 on 09/08/2010 at 01:43

Reply | Report as offensive | Link