Engin Vibrating
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Junior User
Joined: Oct 2009
Posts: 62
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Engin Vibrating
First time poster on here, reading for sometime. I have a 2003 7.3 ps, automatic and this morning while driving the motor would shake at 45 mph like it was about to come undone from the frame. I nursed it home, put it in park and gave it gas and more than the usual black smoke came pouring out of the pipe. One time it even back fired, never did that before. I have no lights, bell's or anything showing up on the dash. I starts and idles fine and appears to go through the gears and rpm's ok until you reach 45 mph. Any ideas before I have it towed? Thanks.
Thread Starter
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Junior User
Joined: Oct 2009
Posts: 62
Likes: 0
Things I just checked, last night I was was low on fuel and filled it up. Same fuel station I always use, it was diesel fuel, had the smell and the extra 5-10 minutes to fill up because of the foaming. Just checked the filler cap, took it off and did a smell test, smelled like diesel. Found the yellow tab right behind the fuel filter, I believe this is how you remove the water or take a fuel sample. How exactly does this yellow tab move? It looks like it is a yellow plastic part that goes vertical with the fuel filter housing and then at the bottom it goes horizontal towards the passenger side. Little help...
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
Welcome to FTE.
I bet you'll get a faster reply if you post your question in the 7.3 motor forum. Go here:
1999 - 2003 7.3L Power Stroke Diesel - Ford Truck Enthusiasts Forums
I bet you'll get a faster reply if you post your question in the 7.3 motor forum. Go here:
1999 - 2003 7.3L Power Stroke Diesel - Ford Truck Enthusiasts Forums
