Engine & Internal Chat about beefing up your engine's insides here.

Big Problem need help!

  #2  
Old 03-30-2007, 05:16 PM
Senior Member
Join Date: Feb 2006
Location: Montana
Posts: 6,290
Default RE: Big Problem need help!

If there is no check engine lights on it could be a few different things.... it may be as simple as cleaning out the throttle body, the temp sensor can also make it a little irradic....and I'm sure there are one or two other fairly easy things to check but I'm to hung over right now to remember what they are so I'll let someone else drop you an answer in a bit.... *L*
 
  #4  
Old 03-30-2007, 06:14 PM
JimBlake's Avatar
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Join Date: May 2006
Location: Wisconsin
Posts: 17,501
Default RE: Big Problem need help!

Look for vacuum leaks.
Bleed air out from cooling system - bleed screw on thermostat housing.
Look again for vacuum leaks.

Search the DIY board here for 'FITV'
- fast-idle thermo valve is underneath throttlebody & the plunger inside can get loose & cause a surging idle.
 
  #5  
Old 03-30-2007, 09:05 PM
deserthonda's Avatar
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Join Date: Dec 2005
Location: In The Desert ( Sahara ? )
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Default RE: Big Problem need help!

ORIGINAL: BIGGS01ES

Hey thanks, yeah ive been searching like a madman on this forum for anything on the subject...havnt had a whole lot of luck.
Really ?? MM all you got to do is head to our DIY section, there is a post titled ( SURGING IDLE ? ) Go chk it out
 
  #7  
Old 04-02-2007, 06:41 PM
Join Date: Feb 2007
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Posts: 112
Default RE: Big Problem need help!

i have a friend who owns a prelude that would do the same thing... his timing belt ended being off and he replaced it and now it sounds like normal
 
  #9  
Old 04-02-2007, 07:20 PM
deserthonda's Avatar
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Join Date: Dec 2005
Location: In The Desert ( Sahara ? )
Posts: 4,754
Default RE: Big Problem need help!

it is not the timing belt issue.......

remov ethe top cover of the fast idle valve, 3 phillip screws, get a regular screwdriver and turn in the inner valve ,, if it is ok or it still the idle surges.. than remove the top cover of the air boost valve and chk to see if the rubber diaphram leaks
 

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