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

Fun times in the garage

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Old Sep 24, 2008 | 02:59 PM
  #1  
badpontiac's Avatar
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Joined: Oct 2006
Posts: 46
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From: sunbury PA
Car: 1986 pontiac firebird
Engine: 2.8l v-6
Transmission: 5-speed
Axle/Gears: stock
Fun times in the garage

86 2.8 firebird most emissions are gone but it has developed a flat spot in the throttle and im messing now with the timeing cause when it dies out mid throttle it backfires through the intake. i replaced injectors tp sensor and clean the crap out of everything but still the dead spot in the throttle any ideas
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Old Sep 24, 2008 | 03:37 PM
  #2  
enswrob's Avatar
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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: Fun times in the garage

almost thinking timing chain is worn out/streched
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Old Sep 25, 2008 | 04:21 PM
  #3  
chevyracingrox's Avatar
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Joined: Nov 2007
Posts: 1,092
Likes: 1
From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: Fun times in the garage

it dies as in, turns off? or does it just choke itself off? how does it run full throttle?
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Old Sep 25, 2008 | 05:58 PM
  #4  
badpontiac's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2006
Posts: 46
Likes: 0
From: sunbury PA
Car: 1986 pontiac firebird
Engine: 2.8l v-6
Transmission: 5-speed
Axle/Gears: stock
Re: Fun times in the garage

full thotle ran fine the stater in my dizzy was craked and the shaft was bent so i put an all new dizzy in and it started to run but i have it a tooth out of time so ill fix it tomarow
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