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Old 01-31-2003, 08:17 AM
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Post engine stalling?

I bought a '64 gmc truck 'bout six months ago, its got a '73 V8 350 engine in it with a 4160 (i think) holley carburator in it.

Recently, its been stalling when I stop at traffic lights and such - but only after i've been driving it for awhile. I use it for work in and around brooklyn, ny, where i live, and there's lots of stoplights around here.

I don't know much 'bout cars, but I'm pretty handy - i've kept it running pretty good so far. (My hunch is that it's just not getting enough vacuum?)I checked one website's troubleshooting guide and it said the intake manifold gaskets may be the problem. anybody have any hints?

thanks!

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Old 01-31-2003, 08:30 AM
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How new does all the ignition parts look? My plug wires were bad when I first got my Towncar and my coil was so busted up internally it sounded like a baby rattle, and so my car would die. Is it sputtering at all? Steve

[ January 31, 2003: Message edited by: 5.0Towncar ]</p>
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Old 01-31-2003, 10:45 AM
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Sounds like you have the problem after the carb choke is disengaged. If you can get someone to help have them pedal the gas lightly after It warms up and starts acting stupid, you pull off the air cleaner and slowly put a rag over the throat of the carb. If the idle picks up you have a vacume leak. Some times It's the carb other times It's a intake or carb gasket. Spray carb cleaner in said areas you'll find it.
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Old 01-31-2003, 04:51 PM
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yah. thats along the right lines! I just did that actually (on a hunch) and just like you said, when I put my hand over the throat, the engine sounds good again.

so a vacuum leak, huh?

what do you mean by "use carb cleaner...you'll find it" - do I just spray the stuff all over the carb body and stuff? what should I look for/ listen for?

thanks!!!
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Old 01-31-2003, 05:01 PM
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Spray the carb cleaner around gaskets (carb, intake). If the rpm's jump you found a vacuum leak.
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