| hard start question [message #157037] |
Tue, 17 January 2012 09:06  |
bronevaya
Messages: 63
Registered: May 2011
Location: birmingham al
Karma: 0
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Hello. Just recently (within the last two weeks) the gmc has refused to start. My fiance has done the normal starting ritual of pumping the pedal before turning the key and she said that it once started but now it just turns over and wont fire. I understand the whole fuel/air/spark process but is there something maybe we are overlooking? The tanks have fuel and just two weeks ago it started and ran.
1977 Palm beach
Bham AL
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| Re: [GMCnet] hard start question [message #157041 is a reply to message #157037] |
Tue, 17 January 2012 09:25  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Take the cover of the air cleaner off and see that it is closed all
the way on it's own auto choke.
Sometimes one can flood the engine, so use the un flood proceedure
;PUSH the gas all the way down and crank for half a minute, then pull
foot off and crank again.
On Tue, Jan 17, 2012 at 7:06 AM, michael <bronevaya@gmail.com> wrote:
>
>
> Hello. Just recently (within the last two weeks) the gmc has refused to start. My fiance has done the normal starting ritual of pumping the pedal before turning the key and she said that it once started but now it just turns over and wont fire. I understand the whole fuel/air/spark process but is there something maybe we are overlooking? The tanks have fuel and just two weeks ago it started and ran.
> --
> 1977 Palm beach
> Bham AL
> _______________________________________________
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
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www.appliedgmc.com
1-800-752-7502
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| Re: hard start question [message #157048 is a reply to message #157037] |
Tue, 17 January 2012 10:49 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| bronevaya wrote on Tue, 17 January 2012 08:06 |
Hello. Just recently (within the last two weeks) the gmc has refused to start. My fiance has done the normal starting ritual of pumping the pedal before turning the key and she said that it once started but now it just turns over and wont fire. I understand the whole fuel/air/spark process but is there something maybe we are overlooking? The tanks have fuel and just two weeks ago it started and ran.
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You really need to go back to the basic fuel and spark question to see if you have both. I would look down the throat of the carb and move the throttle open a few times to see if fuel is squirting out of the accelerator pump nozzles. If so, you have fuel. If not, that's what you need to investigate. If you have fuel, I would pull a plug wire and see if you have spark to ground (about 1/8" gap proximity)while cranking. If you have both, you indeed may have flooded it. If no spark, we can go from there.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: hard start question [message #157052 is a reply to message #157037] |
Tue, 17 January 2012 11:30 |
skip2
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
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Senior Member |
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I've seen a hole burnt through the rotor, theres fire but it's going straight to the distributor shaft and not to the plugs, it's something you can't see and will act like what you describe. Also do you have an electric fuel pump that isn't coming on after oil pressure is built up. Just a couple of suggestions from my GMC product experience.
Skip
74 Canyon Lands, FiTech,
3.7 FD LSD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
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| Re: [GMCnet] hard start question [message #157346 is a reply to message #157083] |
Thu, 19 January 2012 19:48 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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As suggested, she needs to check for fuel in the carburetor throat and then
spark at the plugs. The spark thing may throw her. If so, she can buy at
Harbor Freight, for about $2.98, a spark tester. It fits between a
disconnected spark plug cable and the plug itself. If there's spark
available during starting, a little neon bulb will flash. No flash, no
spark, & no start. Come ask more questions.
SHE can do that!
(Probably better yet, find someone on the Black List -- Like Jeremy Knezek.)
HTH,
Ken H.
On Tue, Jan 17, 2012 at 5:08 PM, michael <bronevaya@gmail.com> wrote:
>
>
> its a 77. would there be any prior warning sings to failure? Because it
> was working fine not too long ago
> --
> 1977 Palm beach
> Bham AL
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Unsubscribe or Change List Options:
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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