stock 03 psd rough running - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 03-28-2013, 09:20 AM Thread Starter Rookie
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engine light on and off ???

I've got an '03 all stock psd that is running rough, sometimes, hard starter and engine light comes on and off while driving. light seems to go off and truck runs smoother when I ease into it, but if I get on it a little, light comes back on and blows black smoke. Uses a little oil but not too bad. Also noticed some oil inside air intake tube where crank case vent is plumbed in. Figured vent is dirty and thus not creating enough vacum. Could this be causing it to blow smoke when I get on it?

Last edited by abogle; 04-02-2013 at 01:50 PM.
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