Rough or Odd Idle
- millionflame
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Rough or Odd Idle
Whenever I am in neutral, or idling, my RPMs are going up and down. They don't change by any huge amount just about 100 rpms or so (500 to 650 or so). Sometimes my car will stall, but usually it will just feel like its going to.<P>Could this be a dirty/bad fuel filter?<BR>Bad distributor??<BR>Dirty fuel intjectors???<P>Thanks for the help.<BR>~A
~ Millionflame (94 GS 120K)
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Re: Rough or Odd Idle
Sounds like a vacuum leak to me. Check your intake boot for tears, and any loose vacuum lines.
David Coleman
I used to know alot about MX-3's, but not so much anymore. Oh well.
I used to know alot about MX-3's, but not so much anymore. Oh well.
Re: Rough or Odd Idle
i had the exact same problem, only worse, and i changed my spark plugs and it was fine. but like david said, it could be a vaccum leak..<p>[ October 21, 2002: Message edited by: valkyire ]
- millionflame
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Re: Rough or Odd Idle
How do you check for vacuum leaks? All my hoses are connected, but I don't exactly know how to check for a leak.<P>Should I just buy new silicone hosing?<BR>~A
~ Millionflame (94 GS 120K)
Re: Rough or Odd Idle
You can use liquid soap and water in a spray bottle. Spray on vacum lines and see if idle changes when it does, you found your leak.<P>Try it!!
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Re: Rough or Odd Idle
i never used liquid soap, but i know carb cleaner or brake cleaner will also make your idle change. You sometimes can hear a vacuum leak also. but remember it could be plugs, wires, cat. convertor clogged, etc...
SOLD - 93 GS Custom intake, exhaust, phenolic spacers, port matching, front upper strut bar, 17" wheels, dragon body graphics, black/white interior, sound system, tints, altezza tails & 3rd brake altezza, g-force front
'94 Caprice - rolling fast and low on 20's along with some custom goodies
'86 Regal - Hydraulics, custom wheels, custom paint, shaved, phantom top, leather, power, and lots of chrome
'92 - New import project in the works, should be out in '09
'94 Caprice - rolling fast and low on 20's along with some custom goodies
'86 Regal - Hydraulics, custom wheels, custom paint, shaved, phantom top, leather, power, and lots of chrome
'92 - New import project in the works, should be out in '09
Re: Rough or Odd Idle
Soap & water is good for finding holes in tires when air is leaking out. I doubt that it's gonna change your idle when it gets sucked into any vacuum leaks. It might not be a good idea either, so don't anybody try that. Stick to the sensor-safe carb cleaner.
- millionflame
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Re: Rough or Odd Idle
Ya, so it WAS a tear in my intake boot. Friggin' thing was in one of those ribs on the back side of it, so of course I never spotted it until the carb cleaner went that way!<P>Oh well.<P>Thanks for the help.<P>~A
~ Millionflame (94 GS 120K)
- jpwmx3
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Re: Rough or Odd Idle
I just had the same thing happen to me. I just used some glue to fix the crack and now its back to normal. ![Smile :)](./images/smilies/icon_smile.gif)
![Smile :)](./images/smilies/icon_smile.gif)
1993 GS V6/402,000km http://images.cardomain.com/member_imag ... 290_18.jpg
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Re: Rough or Odd Idle
My car is doing the same thing, so im gonna check it when it gets warmer out, how much did that boot cost by the way, or didyou glue it?
'93 mx-3 GS 1.8L v6
- millionflame
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Re: Rough or Odd Idle
Well, for now I just did the Red Green special and wrapped it in lots of duct tape. Tomorrow I'm taking to get a shop to make me an aluminum one with the vacuum ports and everything.<P>~A
~ Millionflame (94 GS 120K)