03 6.0 runs rough when cold - Ford Powerstroke Diesel Forum

 
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post #1 of 2 Old 06-03-2013, 10:51 AM Thread Starter
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03 6.0 runs rough when cold

I have an 03 with 183,000 miles. It starts fine but has no power when cold..barely will move. Sometimes even after it warms up it will run bad and smoke. When its cold it missez at highway speed on steady throttle. I have cleaned the egr valve and the ficm tests at 48 volts. Any suggestions on where to go next??
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post #2 of 2 Old 06-23-2013, 02:43 AM
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viscosity problem?

I'd try a 10w 30 and see if that helps and change it after 1000 miles .good luck
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