Strane idle problem.
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Senior User
Joined: Jun 2002
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Strane idle problem.
1996 Mazda B2300 ~78K miles.
When the engine is at working temp and I come to a stop (red light or stop sign) the idle will settle at 1500RPM. Then, after about 3-5 seconds it will drop to normal idle of around 800-900RPM.
This will not happen if I try to rev the engine. It will always drop back to normal RPM.
I took the IAC out and cleaned it with carburator cleaner but there's no chage. BTW, it was vewry hard to clean it. Is there something better than carb cleaner ? How do I clean the throttle body ? It's quite dirty.
Can someone also tell me how to pull a stuck vaccume line out. I tried to take the throttle body out but there is a vaccum line under it that wouldn't come out.
Thanks,
zoti
When the engine is at working temp and I come to a stop (red light or stop sign) the idle will settle at 1500RPM. Then, after about 3-5 seconds it will drop to normal idle of around 800-900RPM.
This will not happen if I try to rev the engine. It will always drop back to normal RPM.
I took the IAC out and cleaned it with carburator cleaner but there's no chage. BTW, it was vewry hard to clean it. Is there something better than carb cleaner ? How do I clean the throttle body ? It's quite dirty.
Can someone also tell me how to pull a stuck vaccume line out. I tried to take the throttle body out but there is a vaccum line under it that wouldn't come out.
Thanks,
zoti
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
You can find spray cleaners in auto parts stores especially made for use on Air Intakes & TBs.
You might want to read through this thread: Cleaning Your Throttle Body
I have used penetrating oil on many occasions to help me loosen up hoses that were stuck like that.
You might want to read through this thread: Cleaning Your Throttle Body
I have used penetrating oil on many occasions to help me loosen up hoses that were stuck like that.
New User
Joined: Nov 2003
Posts: 7
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My 93 Ranger would idle very strangely with no load: It would go very high, then very low, then very high, and very low.
I cleaned my IAC several times and it barely fixed it. I finally gave in and bought a new one ($40) and my troubles went away.
I cleaned my IAC several times and it barely fixed it. I finally gave in and bought a new one ($40) and my troubles went away.
Last edited by Raydr; Nov 11, 2003 at 06:58 PM.
