Fordmods Logo

i cant fix my idle problem, can you? 

 

Page 1 of 1 [ 10 posts ] 

 
 Post subject: i cant fix my idle problem, can you?
Posted: Wed Jan 04, 2006 8:41 pm 
Tyre Shredder
Offline

Age: 31

Posts: 391

Joined: 9th Feb 2005

Ride: EB falcon 5spd

Location: adelaide
SA, Australia

ok, about 2 weeks ago i nticed an idle problem, when i pull up the lights (or any time i put my foot on the clutch and off the accl.) the revs go down normal speed to 2000rpm, then very slowly to 1500rpm, then they sit there for 10 seconds up to 30 seconds THEN finaly drop to 800rpm,

sometimes this final drop is quick, sometimes slow, and i have only noticed it when the engine is warm.

today i took off the ISC and cleaned is (sprayed inside with crc, tapped it on paper towel and let to dry, then used cotton tips to try and clean as much crap as i could out of the two holes on throttle body)

anyway this still didnt work. what else could it be/or try?

 

_________________

1993 EBII GLI, IT'S PERFORMANCE Stage 3 engine,
XH Snorkel, K+N panel, Pacie 4480, High flow cat,
2.5" Lukey cat back system. Monroe GT Gas shocks + struts.

just dyno'd at 140.9RWKW

Top
 Profile  
 
 
Posted: Wed Jan 04, 2006 8:55 pm 
Getting Side Ways
Offline

Age: 34

Posts: 419

Joined: 6th Nov 2004

Location: canberra
ACT, Australia

well possibly there is a vacume leak, or a faulty sensor or the isc is faulty or is sticking did u spray any silicon spray after u cleaned it? as using a cleaning agent will dry it out and can make it stick, also try resetting adaptions
Top
 Profile  
 
 
Posted: Wed Jan 04, 2006 8:59 pm 
Tyre Shredder
Offline

Age: 31

Posts: 391

Joined: 9th Feb 2005

Ride: EB falcon 5spd

Location: adelaide
SA, Australia

which sensor do you think? and thought crc was a lubricant? where could the vac leak be? and what is re-setting sdaptions?

cheers

 

_________________

1993 EBII GLI, IT'S PERFORMANCE Stage 3 engine,
XH Snorkel, K+N panel, Pacie 4480, High flow cat,
2.5" Lukey cat back system. Monroe GT Gas shocks + struts.

just dyno'd at 140.9RWKW

Top
 Profile  
 
 
Posted: Wed Jan 04, 2006 9:02 pm 
Getting Side Ways
Offline

Age: 34

Posts: 419

Joined: 6th Nov 2004

Location: canberra
ACT, Australia

could be any sensor eg cam, map sensor ect. resetting adaptions is just a matter of dc batt for a few hrs so im told. d/c the plug on the isc and see what happens, and even try other sensors to try and locate the fault, with vacume leaks spray a flamble spray eg wd40 ect, around the intake system and if the car idle faster as u spray around the intake then u have found a leak.
Top
 Profile  
 
 
Posted: Wed Jan 04, 2006 9:13 pm 
Tyre Shredder
Offline

Age: 31

Posts: 391

Joined: 9th Feb 2005

Ride: EB falcon 5spd

Location: adelaide
SA, Australia

hmm, spraying, that sounds dodgy. are you sure?

 

_________________

1993 EBII GLI, IT'S PERFORMANCE Stage 3 engine,
XH Snorkel, K+N panel, Pacie 4480, High flow cat,
2.5" Lukey cat back system. Monroe GT Gas shocks + struts.

just dyno'd at 140.9RWKW

Top
 Profile  
 
 
Posted: Wed Jan 04, 2006 10:40 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 520

Joined: 23rd Dec 2005

Ride: EF Futura Wagon

Location: Toowoomba
QLD, Australia

The above is the proper way of searching for vacuum leaks. Another check is to disconnect the isc and plave a 0.75mm feeler between the idle adjust screm and throttle. Now rev and see if same thing happens. If so then ISC can be eliminated as the problem (you have just bypassed it).

cheers
Scott

 

_________________

If it doesn't fit, jam it. If that doesn't work use a hammer. - Engineers Motto

Top
 Profile  
 
 
Posted: Thu Jan 05, 2006 1:12 pm 
Tyre Shredder
Offline

Age: 31

Posts: 391

Joined: 9th Feb 2005

Ride: EB falcon 5spd

Location: adelaide
SA, Australia

ok, so this spraying thing, all i do is ilde my car, and spray WD40 around the snorkel, so it gets sucked into the engine, and if the revs rise by themselves then its a vaccume leak.

sounds easy enough, but just courious, how does this prove its a vaccume leak? (im not denying it, im just curious to know)

 

_________________

1993 EBII GLI, IT'S PERFORMANCE Stage 3 engine,
XH Snorkel, K+N panel, Pacie 4480, High flow cat,
2.5" Lukey cat back system. Monroe GT Gas shocks + struts.

just dyno'd at 140.9RWKW

Top
 Profile  
 
 
Posted: Thu Jan 05, 2006 3:57 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 520

Joined: 23rd Dec 2005

Ride: EF Futura Wagon

Location: Toowoomba
QLD, Australia

Nah, you've got it wrong. Spray WD-40 around any/all hoses and anything sealed with a gasket (intake, etc). If revs change then you know exactly where the vacuum leak is.

cheers
Scott

 

_________________

If it doesn't fit, jam it. If that doesn't work use a hammer. - Engineers Motto

Top
 Profile  
 
 
Posted: Thu Jan 05, 2006 9:36 pm 
Tyre Shredder
Offline

Age: 31

Posts: 391

Joined: 9th Feb 2005

Ride: EB falcon 5spd

Location: adelaide
SA, Australia

ahhh, i will try.

 

_________________

1993 EBII GLI, IT'S PERFORMANCE Stage 3 engine,
XH Snorkel, K+N panel, Pacie 4480, High flow cat,
2.5" Lukey cat back system. Monroe GT Gas shocks + struts.

just dyno'd at 140.9RWKW

Top
 Profile  
 
 
Posted: Thu Jan 05, 2006 10:09 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 866

Joined: 8th Nov 2004

Gallery: 2 images

Ride: XD 351, FG Ute

Location: Darwin
NT, Australia

sounds like you idle sensor is clogged happens all the time just remove it and spray it with carby clean and reinstall

 

_________________

WINNER:
Best modified car 1980 - 1989 Shannons show and shine 2006
Best XD-XH Darwin All Ford Day 2011

There is no substitute for cubic inches :twisted:

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 10 posts ] 

Who is online

Users browsing this forum: No registered users and 40 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sat Dec 16, 2017 3:15 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names