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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: SouthernBrandt75 on May 17, 2017, 09:28:05 PM

Title: Very Strange Stuff Here In Olympia......WHY WONT IT START
Post by: SouthernBrandt75 on May 17, 2017, 09:28:05 PM
So this morning, at 5:15 mind you, my truck started then ran super rough and died. After that I couldn't start it again. craziest thing is I have spark and the plugs smell like gas? Just put brand new plugs, wires, cap and rotor. I am beside myself on what could be wrong. Could it be just flooded and timing off? The night before when I was getting in the gas I noticed it was really laggy when first accelerating. Anybody have any ideas? Thanks in advance.

Trey
1986 Chevy C30 7.4 454 3+3
Title: Re: Very Strange Stuff Here In Olympia......WHY WONT IT START
Post by: blazer74 on May 17, 2017, 10:42:55 PM
Choke problem, not opening first thought.
Title: Re: Very Strange Stuff Here In Olympia......WHY WONT IT START
Post by: Dr_Snooz on May 17, 2017, 11:36:01 PM
How old is the carb? Sounds like a stuck float or bad needle valve to me.
Title: Re: Very Strange Stuff Here In Olympia......WHY WONT IT START
Post by: VileZambonie on May 18, 2017, 07:08:38 AM
Verify the choke is open. Did you use high quality parts? Pull the cap off an inspect, make sure the cap is installed correctly.
Title: Re: Very Strange Stuff Here In Olympia......WHY WONT IT START
Post by: SouthernBrandt75 on May 18, 2017, 08:15:16 AM
Quote from: Dr_Snooz on May 17, 2017, 11:36:01 PM
How old is the carb? Sounds like a stuck float or bad needle valve to me.

Stock carb lol. That's what I am thinking. Makes sense really with the lag and what not. Where exactly do I find the model number? I usually just get a new carb but with the recent birthdays and holidays it looks like rebuild time lol.
Title: Re: Very Strange Stuff Here In Olympia......WHY WONT IT START
Post by: srozell on May 19, 2017, 01:17:13 AM
The site should help you identify your carb.

http://www.crankshaftcoalition.com/wiki/Rochester_Quadrajet_carburetors:_Identification_and_decoding (http://www.crankshaftcoalition.com/wiki/Rochester_Quadrajet_carburetors:_Identification_and_decoding)

Title: Re: Very Strange Stuff Here In Olympia......WHY WONT IT START
Post by: SouthernBrandt75 on May 19, 2017, 06:53:47 AM
Quote from: srozell on May 19, 2017, 01:17:13 AM
The site should help you identify your carb.

http://www.crankshaftcoalition.com/wiki/Rochester_Quadrajet_carburetors:_Identification_and_decoding (http://www.crankshaftcoalition.com/wiki/Rochester_Quadrajet_carburetors:_Identification_and_decoding)

Thank you! Great link.