Gas in block

1994 FORD F-150
356,000 MILES • 4.9L • 6 CYL • 2WD • AUTOMATIC
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RANDY123456
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My block is filling up with gas. White smoke coming from exhaust.
Mar 21, 2017 at 6:06 PM
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CARADIODOC
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Pull the vacuum hose off the fuel pressure regulator on the fuel rail on the engine. If that is wet inside, replace the regulator.
Mar 21, 2017 at 6:18 PM
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RANDY123456
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Could FPR cause the white smoke?
Mar 21, 2017 at 6:29 PM
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CARADIODOC
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White smoke from the exhaust is a sign of burning coolant, but that is not related to gas in the oil. The burning coolant is caused by a leaking cylinder head gasket. The clue is the level will be going down in the coolant reservoir. I cannot think of how the two symptoms could be related.
Mar 21, 2017 at 6:34 PM
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RANDY123456
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When I took the radiator cap off while it was running earlier, the coolant in the radiator was jumping up and down. It didn't matter how much water I put back in, it would still go down.
Mar 21, 2017 at 6:38 PM
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CARADIODOC
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Have your mechanic perform a chemical test at the radiator. That will identify if a head gasket is leaking. You can also add a small bottle of dark purple dye to the coolant, then check later with a black light. The dye will show up as a bright yellow stain. If a head gasket is leaking, you'll find the dye inside the tail pipe.
Mar 21, 2017 at 7:29 PM
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RANDY123456
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I bought a head gasket, valve cover gasket, and fuel regulator. I'm going to change the fuel regulator along with putting new oil in it today to see if it stop the gas going in the block. Then when I get time off I will change the gaskets.
Mar 22, 2017 at 10:32 AM
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RANDY123456
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It was the fuel regulator. No more white smoke. Going to put the gaskets away for another day. Still have a miss in it so doing a compression test on it tomorrow to see what cylinder it is
Mar 22, 2017 at 6:33 PM
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CARADIODOC
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Dandy. Cylinder head gaskets are a real big job that includes special tools, procedures, and should involve an engine machine shop. Don't attempt those unless you really need to.
Mar 22, 2017 at 7:11 PM
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RANDY123456
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I've been doing mechanic work for a long time. There's not something I haven't done with a vehicle so it shouldn't be a problem to complete it. But I do appreciate your help with figuring my problem out. Thanks man
Mar 23, 2017 at 1:15 PM
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CARADIODOC
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My previous comment was based on you listed, "Little knowledge". Head gaskets aren't a big deal when you know what you're doing.
Mar 23, 2017 at 4:38 PM
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RANDY123456
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Well still getting gas in the oil. Still smoking. I'm going to try the dye thing tomorrow and let you know
Mar 23, 2017 at 6:14 PM
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STRAILER
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Please use 2CarPros anytime, we are here to help and tell a friend.

Best, Ken
Mar 27, 2017 at 4:14 PM