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Engine dies at low rpm with headlights on

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Old Feb 15, 2010 | 08:02 PM
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79Beast82's Avatar
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From: Mountain Home Idaho
Default Engine dies at low rpm with headlights on

I have a short in my electrical system. If I have my head lights on while driving my engine will die at low rpm but if I pop it in nuetral it'll recover. weird. any Ideas? I just need a good place to start.
 
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Old Feb 15, 2010 | 08:49 PM
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have you checked how may volts your altinator is putting out? so when you put you lights on your engine starts to die or slow down? when was the last time it had a tune-up? it could also be a timing problem like a stretched timing chain. the truck is 30 years old.
 

Last edited by crazzywolfie; Feb 15, 2010 at 08:52 PM.
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Old Feb 15, 2010 | 09:11 PM
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I just had it tuned up and I replaced the timing belt less than six months ago. Its weird. I'll be driving along and come to a stop and then it'll putter and die. I'll turn the key and it'll start right up and purr like a kitten then I put it in drive and give it gas and it'll die again. sometimes it will die just by putting it in gear. A friend of mine said it migh be flooding out because my carb is running rich. I just moved from 10,000ft to 2,000ft and the carb is jetted for altitude I just don't know what size jets I need to get. and the list of issues just keep gettin bigger from there. lol
 

Last edited by 79Beast82; Feb 15, 2010 at 09:32 PM.
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Old Feb 15, 2010 | 10:29 PM
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yes if the jetting is for high altitude, then you will need to "richen up" the jets and the idle mixture too. High altitude=less air=needs less fuel
Low altitude=more air=needs more fuel
you should make more power at lower altitude. That is why when you see a vehicle with a carb, normally driven at low altitude and it is driving at high altitude, there will most likely be black smoke emitting from the exhaust pipes. High altitude need less fuel. Low altitude need more fuel not less.
 
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Old Feb 16, 2010 | 08:56 PM
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Gotcha thanks Ol'dodge4x4. Any suggestions on Jett size for a edelbrock 1405 at 2,000ft?
 

Last edited by 79Beast82; Feb 16, 2010 at 09:09 PM.
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