7.3 rough idle. Help - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 04-04-2019, 09:07 PM Thread Starter
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7.3 rough idle. Help

Have a 2003 7.3 with 190,000 miles. Truck starts up great. Even when its chilly out. Fires right up. Runs good for about 30 seconds then starts to miss. Blows blue/white smoke. Not really thick but enough to be an issue. Has blow by. Took the oil fill cap off and turned it over. Cap dances around on top a few times then will fall off but cant tell if it's from the pressure or the fact that the engine is shaking.
UVCH and valve cover gaskets are new.
What should I start with?
Lazytitan57 is offline  
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