Starting Issue (video provided)
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Freshman User
Joined: Jan 2020
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So This only happens when the truck is dead cold. I did that very thing yesterday. Truck has an even crank across the board after started up I’ll film it again to verify. I get white smoke after I start the truck but it goes away on warm up. Related issue?
Hotshot
Joined: Dec 2014
Posts: 17,829
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From: Jersey Shore
The engine stalls like it has a minor hydrolock, but clears. It could be filling with fuel due an injector issue, or coolant from other issues.
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Freshman User
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So as I said, when the engine sits for awhile it does this and I have white smoke on start up so could it be an injector?
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Mountain Pass
Joined: Oct 2012
Posts: 233
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From: Southern Indiana
Ima go with leaking injector -- I hear the slight hydro lock in the vid
if you really want to know -- pull the glow plugs and crank over - which cylinder blows fuel?
run contribution test may show one injector dumping fuel
could pressurize the fuel rails(with air) individually to see which bank was leaking
if you really want to know -- pull the glow plugs and crank over - which cylinder blows fuel?
run contribution test may show one injector dumping fuel
could pressurize the fuel rails(with air) individually to see which bank was leaking
Hotshot
Joined: Dec 2014
Posts: 17,829
Likes: 3,113
From: Jersey Shore
Fuel would leak into a cylinder, filling up the piston recess and possibly above the top of the piston. In this case, you've probably had some of the recess filled up. When you start to rotate the crank and that cylinder is compressing the trapped air, it's compression is way higher due to the fuel taking up space. The starter has a very difficult time compressing air to that high of a pressure. If you have more fuel in the cylinder, you can get to the point of a full hydrolock, there is so much fuel in the cylinder it just jams the piston and the fuel has nowhere to go.
With some fuel in the cylinder, the pressure is high, the starter struggles, but with each revolution, some fuel gets ejected out of the exhaust valves and with each revolution the starter has an easier time. Eventually, it clears and the engine runs normally. But with the over fuelling, you get the white smoke.
With some fuel in the cylinder, the pressure is high, the starter struggles, but with each revolution, some fuel gets ejected out of the exhaust valves and with each revolution the starter has an easier time. Eventually, it clears and the engine runs normally. But with the over fuelling, you get the white smoke.