chevy 350 on propane wont start!!!!??????? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-13-2010, 07:35 PM
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chevy 350 on propane wont start!!!!???????

the truck has been sitting for almost a year, ran great when i parked it but when i went to fire it up yesterday it just cranked and cranked without so much as a sputter or a pop. i pulled off the line to the condenser and got lots of propane so im thinking the problem is sonwhere between there and the mixer. im fairly new to propane so any help or advice will be greatly appreciated thanks
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Old 08-13-2010, 07:42 PM
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Quote:
Originally Posted by Codyw
the truck has been sitting for almost a year, ran great when i parked it but when i went to fire it up yesterday it just cranked and cranked without so much as a sputter or a pop. i pulled off the line to the condenser and got lots of propane so im thinking the problem is sonwhere between there and the mixer. im fairly new to propane so any help or advice will be greatly appreciated thanks
I don't know anything about propane but did you make sure you have spark ?
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Old 08-13-2010, 07:51 PM
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im fairly certain its a fuel problem because ive been cranking it for a good minute straight and i cant smell any propane at all
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Old 08-16-2010, 05:17 AM
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Quote:
Originally Posted by Codyw
the truck has been sitting for almost a year, ran great when i parked it but when i went to fire it up yesterday it just cranked and cranked without so much as a sputter or a pop. i pulled off the line to the condenser and got lots of propane so im thinking the problem is sonwhere between there and the mixer. im fairly new to propane so any help or advice will be greatly appreciated thanks
propane has a tendancy to get gummed up like gas if it sits too long. its a good possibility that its plugged things up at either the exchanger or the "throttle body"
best i can recommend is to close off the tank valve and unhook the line from the tank to the exchanger and blow out the line. after that, the exchanger will have to be opened up and cleaned out. and then after that, the throttle body will need to be removed and all passages cleaned out thoroughly.
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Old 08-16-2010, 07:06 AM
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My only experience with propane is with forklifts so this may not apply in your case. Some forklifts have a "regulator" with a valve that opens with vacuum. The cranking supplys the vacuum. If the engine does not crank fast enough or there is a vacuum leak, etc the valve does not open hence no fuel to the engine. Some of these were solenoid actuated also. If so check for power to the solenoid.
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