V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

wierd idle

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Old Nov 12, 2008 | 12:35 AM
  #1  
enswrob's Avatar
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From: Marengo,IA
Car: 89 Firebird
Engine: 2.8L out of a 89 camaro
Transmission: 5 speed
Axle/Gears: ?
wierd idle

my car idles wierd while cold... goes from 1500 to 2000 ish . while warm it idles like normal 850 ish.. im thinking its the iac acting up.. got a new one already. its 1 month used. on the other engine i blew up. just gotta take the time and replace it tomarrow night.

i cleaned the passages before i installed the engine in my car. or it could be a slight vacuum leak. hah . been cold /rainy here not easy to realy troubleshoot out side.

ill have the car up on a lift friday to figure out this damn vss error im getting. im thinking its just loose connection since the trans was out for a while and i gotta check the trans fluid level.

also need to check starter bolts. starter not always engageing.. new starter about 5 months old. might have to reshim.
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Old Nov 13, 2008 | 03:54 PM
  #2  
enswrob's Avatar
Thread Starter
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Joined: Oct 2007
Posts: 484
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From: Marengo,IA
Car: 89 Firebird
Engine: 2.8L out of a 89 camaro
Transmission: 5 speed
Axle/Gears: ?
Re: wierd idle

gonna pull the intake this weekend and clean it up a bit more noticed some carbon build up when installed the new iac.
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Old Nov 14, 2008 | 08:01 PM
  #3  
enswrob's Avatar
Thread Starter
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Joined: Oct 2007
Posts: 484
Likes: 0
From: Marengo,IA
Car: 89 Firebird
Engine: 2.8L out of a 89 camaro
Transmission: 5 speed
Axle/Gears: ?
Re: wierd idle

pulled the throttle body.. hah i found half a throttle body gasket... hence source of leak for bad idle. runs much better now. cleaned throttle body and iac passage. idles like a dream now.
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