Having problems with my Ex deisel chugging

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Dec 13, 2010 | 07:24 PM

maddog9m

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Joined: Jul 2008

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Having problems with my Ex deisel chugging

Ok this has been driving me crazy so any help is apreciated, I start my truck and it starts and idles fine for about 3 minutes this is warm or cold out. Then it starts running really ruff and loses all power and will eventually stop running. I can also start it and drive about 3 blocks and it will do same thing. Then when I turn it over it takes about 45 seconds before it will finally act like it wants to start and will eventually start. I'll mash peddle down until it clears out about 1 minute then it starts to run fine and I have no more problems that day. The next day it does the same thing,any suggestions as to what could be causing this? There are no codes and truck has run fine until this started. It acts like the fuel in line is good then hits a spot and almost acts like water in fuel then when I get past that spot it will run fine this is best way to describe it.

Dec 13, 2010 | 08:22 PM

Vinny Mastrodomenico

Junior User

Joined: Aug 2010

Posts: 61

Likes: 0

From: San Antonio

Maddog, you may want to post this in the 7.3 liter section, many knowledgable members that might be able to help you work through this 7.3 specific problem.

Here are few suggestions for you to check on the intermittent problem with no codes shown-
1. CPS
2. Fuel Filter
3. Loose UVCH

Dec 13, 2010 | 08:34 PM

Jmatthews

is a BAAAD MAN

Joined: Apr 2005

Posts: 3,738

Likes: 5

From: Winston Salem NC

Search "romps" maybe switching to synthetic oil would help. Is it cold where you live? do you plug in your block heater when it's cold?

Dec 13, 2010 | 08:58 PM

Stewart_H

Super Moderator

Joined: May 2004

Posts: 29,380

Likes: 118

From: Central Coast of CA

So this is only on the first start up, when the engine is cold?

Also, do as Vinnie posted, this is a 7.3L question and needs to be posted there.

Stewart

Dec 14, 2010 | 09:13 AM

Toreador_Diesel

FTE Leadership Emeritus

Joined: Sep 2003

Posts: 12,253

Likes: 763

From: Houston, Texas

Quote:

Originally Posted by Stewart_H

So this is only on the first start up, when the engine is cold?

Also, do as Vinnie posted, this is a 7.3L question and needs to be posted there.

Stewart

Agreed, I'll move this to the 7.3 forum...