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06-02-2014
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#21 |
 Join Date: Jul 2013
Location: Oceanside, California
Posts: 66
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Re: Tackleing the big job before summer!!
Ok guys...stage 1 complete! I am really happy how it turned out! What do you all think?? At the risk of this turning to a technical post...since I got it back together it idles a little funny. Shoots up to 2 grand on start up..which I know is sometimes normal..but when it comes down it seems to bounce between 900 and about 1200. Kind of annoying. It didn't do this before. Just purred steady. Also when I come to a stop it stays higher, about 1500?? Any ideas? Thanks guys!!
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06-02-2014
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#22 |
 Join Date: Apr 2004
Location: Atlanta, GA
Posts: 2,170
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Re: Tackleing the big job before summer!!
Looks great.. You may need to check for a vacuum leak or the IAC. Just a guess I'm sure the guys in the know will post up.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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06-02-2014
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#23 |
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
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Re: Tackleing the big job before summer!!
Did you disassemble/reassemble the TB?
Sounds like vacuum leak but check TPS is set correctly. Pete
__________________
'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage |
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06-02-2014
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#24 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Tackleing the big job before summer!!
Quote:
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06-02-2014
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#25 |
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Join Date: Jul 2013
Location: Oceanside, California
Posts: 66
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Re: Tackleing the big job before summer!!
Ok, at the suggestion of a good friend, I took off the air boot and (choked it) with a book. Within 2 seconds it died right out. Didn't hear any hissing from vacuum leaks. Pretty much went through a can of carb cleaner over the top end, and got no change in rpm at all. Pulled the IAC and checked for cleanliness, reinstalled. Seemed to idle normal at first then rose back up to a high idle. Checked the TPS setting and was good. Even adjusted a bit but idle only rose, so set back to original position. Guess a plenum pull is in order!:-( What a bummer!
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06-02-2014
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#26 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Tackleing the big job before summer!!
DID U DISASSEMBLE THE THROTTLE BODY WHEN YOU POWDERCOATED?
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06-02-2014
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#27 |
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Join Date: Jul 2013
Location: Oceanside, California
Posts: 66
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Re: Tackleing the big job before summer!!
I did. Whats the procedure for aligning the throttle blades? I try anything before pulling the plenum again!
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06-02-2014
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#28 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Tackleing the big job before summer!!
Pull off the throttle body and send it to Haibeck.
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06-03-2014
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#29 |
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Join Date: Dec 2012
Location: NC
Posts: 1,783
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Re: Tackleing the big job before summer!!
Get a sheet of gasket material, and cut out one of these.
If your TB is leaking by 2nd butterflies, then with this in place, idle will hold steady as a rock, and the lope will disappear. 
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06-03-2014
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#30 |
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Join Date: Jul 2013
Location: Oceanside, California
Posts: 66
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Re: Tackleing the big job before summer!!
Schrade, are you using this in place of the stock gasket?
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