why is carburetor filling up with water

1999 CHEVROLET TRUCK
200,000 MILES • 4.3L • 6 CYL • 2WD • AUTOMATIC
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RROG
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an employee was driving truck and suddenly truck started running awful. truck will start but you have to struggle to keep it running and noticed water in intake.
Apr 17, 2017 at 2:28 PM
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CJ MEDEVAC
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Sounds like the fuel tank has water in it.

This rig has a carburetor?

The Medic
Apr 17, 2017 at 7:06 PM
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STEVE W.
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1999 4.3 should be fuel injected. I don't think you are seeing water in the intake. It is probably fuel from a failed pressure regulator or the fuel line that feeds the injector assembly has failed. Both are common issues on that injection system.
Apr 20, 2017 at 10:21 PM
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RROG
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it is fuel injected and there was definitely a bunch of water in intake. they pulled off plastic intake lid and boom there it was
Apr 21, 2017 at 7:05 AM
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SATURNTECH9
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Maybe the guy driving it ran threw some standing water and sucked it into the air intake system.If so that can bend valves and connecting rods.
Apr 21, 2017 at 12:36 PM
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STEVE W.
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That's about the only way for water to get there. Was it water or coolant? Water would have had to come from the outside. Check the air box for a soggy filter.

Can't really think of a way for coolant to get in there unless the lower manifold cracked or eroded over one of the water passages, Or maybe the intake gasket failed and water pressure pushed it into the intake valve port? Never seen it but I guess it could happen. Is there coolant in the oil?
Apr 21, 2017 at 9:53 PM