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03-19-2009, 02:16 PM | #1 |
Registered User
Join Date: Jan 2009
Location: Europe
Posts: 26
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'79 C10: bad cold start, perfect hot start
'79 C10. All stock. 350ci V8 with Quadrajet carb.
Stock choke with spiral element. Warm or hot the engine starts without hesitation within a second. Cold I have to pump the throttle to use the accelleration pump and start for a couple of seconds. Choke valve is closed when cold and fully opened when warm/hot. If it has run for a a minute or so, it starts without problems. Even after a couple hours it starts fine. Do you think it's the choke, or could fuel drain back to the fueltank? Which makes it hard to start, as the pump has to pump it back to the carb? |
03-19-2009, 02:26 PM | #2 |
Registered User
Join Date: Mar 2006
Location: Norman, Oklahoma
Posts: 553
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Re: '79 C10: bad cold start, perfect hot start
Your truck is probably just doesn't like the cold lol.. I have to give me truck one pump of the gas pedal every morning before I start it but thats all she takes...
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1973 Chevrolet C20 (Under Construction) Last edited by HotRod73; 03-19-2009 at 03:01 PM. |
03-19-2009, 02:30 PM | #3 |
6.0 powered square
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
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Re: '79 C10: bad cold start, perfect hot start
Sounds like the choke is out of wack, on my truck I have pump gas a few times even if it's a hot day, and a lot when it's cold, but my carburetor is trash
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03-19-2009, 02:33 PM | #4 |
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Join Date: Oct 2008
Location: Austin, TX
Posts: 72
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Re: '79 C10: bad cold start, perfect hot start
Change the choke and see if it helps. Like a $10 part.
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03-19-2009, 07:32 PM | #5 |
Registered User
Join Date: Nov 2008
Location: Lusby, MD
Posts: 563
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Re: '79 C10: bad cold start, perfect hot start
yea choke i have a manual one and i'm not as good as the original choke gonna call edelbrock and get the electric choke
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http://67-72chevytrucks.com/vboard/group.php?groupid=37 73 C10 Fleetside If it ain't a Chevy it's foreign http://hotridesmag.com/ |
03-19-2009, 09:47 PM | #6 |
Another Day, Another Dollar
Join Date: Nov 2008
Location: North Vancouver, BC
Posts: 1,316
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Re: '79 C10: bad cold start, perfect hot start
choke is probably haggered.
you don't really need it anyhow. my big block is the same. i just fire it up and use the trusty old "foot choke" (foot on the gass @ 1500 RPM for a few minutes
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-78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square" |
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