Engine Surge - Ford Powerstroke Diesel Forum
 
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post #1 of 8 Old 10-04-2006, 08:34 AM Thread Starter
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Engine Surge

I have a 2003 F350 super duty with the 6.0 power stroke. On cold starts for the first 1/2 to 3/4 of a mile the engine surges when accelerating and I don't have much power. When I had the truck on a chassis dyno it couldnt hold steady boost or power. What could be causing this??? Any ideas???

2003 F350 Dual Wheel Super Duty 6.0 Powerstroke
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post #2 of 8 Old 10-04-2006, 08:56 AM
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Quote:
Originally Posted by ElCaMEANo View Post
I have a 2003 F350 super duty with the 6.0 power stroke. On cold starts for the first 1/2 to 3/4 of a mile the engine surges when accelerating and I don't have much power. When I had the truck on a chassis dyno it couldnt hold steady boost or power. What could be causing this??? Any ideas???
Are you just starting it and going and not letting it warm up at all? If so the no power part is going to happen. I tryed to get the tires on a curb one time when it was cold and to my supprise it would even do that when cold. The surging part could also be part of the cold starting.

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A 7.3 with an edge should never get into a race. Unless it's with a kid on a bicycle.. and the bike has a flat.
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post #3 of 8 Old 10-04-2006, 09:04 AM Thread Starter
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Thanks for the response.. I do let it warm up. It seems to only happen for the first mile I drive. Don't know what could be causing it.

2003 F350 Dual Wheel Super Duty 6.0 Powerstroke
Flowmaster 4" exhaust downpipe to tailpipe
Cool Air induction
Banks intercooler Level 4
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post #4 of 8 Old 10-04-2006, 09:20 AM
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Quote:
Originally Posted by ElCaMEANo View Post
Thanks for the response.. I do let it warm up. It seems to only happen for the first mile I drive. Don't know what could be causing it.
Later today Marc will come in and he will have a better answer for ya.

-Bobby Crews- AKA Dr. Cookie Cutter!

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A 7.3 with an edge should never get into a race. Unless it's with a kid on a bicycle.. and the bike has a flat.
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post #5 of 8 Old 10-09-2006, 07:03 PM
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possible turbo vanes worn or VGT sticking in the turbo. a buddy of mine had a similar problem and the dealer told him the vanes on the turbo were worn out (made of stainless steele). but this is here say info though.

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post #6 of 8 Old 10-09-2006, 07:05 PM
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its either gonna be a bad EGR valve or a sticking turbo....
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post #7 of 8 Old 10-09-2006, 07:21 PM
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What about fuel? with a leak in the line somewhere? Fuel could bleed off and what he's expirencing is air. This happened in my semi. When it worked the air out it ran fine. just a thought.

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post #8 of 8 Old 10-09-2006, 07:25 PM
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El Camino? really? I have a '75 Laguna SS El Camino

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