Serving Our Country!
Join Date: Aug 2007
Location: Manor, TX
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Your glow plugs have to be working to start in that temp but it is possible that some of them have a bad wire or burnt connector. Check around the valve cover gasket/harness for any signs of burning or chafing.
The other thing is how long did you wait after turning the key to run till you tried to crank it? The WTS light is an idiot gauge, glow plugs can stay on for up to two minutes even with the light out. When it's really cold out, turn the key to run and wait a minute or two. Sometimes you may even have to cycle the key a few times.
Otherwise, it's normal for a diesel to blow a bunch of white smoke on start up when it's cold.
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