I-H 7.3 missing under load

Posted by Gary Hearn on February 02, 2003 at 03:50:06 from (216.54.110.73):

I went to run my IH rollback with the 7.3 diesel for the first time in three months yesterday and when put under a load it would die down and pick back up. The duration of the "run" cycles appeared to be a bit longer than the "dead" cycle, maybe 12 and 8 seconds respectively. This happened last year, but some fuel conditioner appeared to help then.

While the problem had cleared up within 5 miles before, it never did today and it ultimately quit on a hill and with weak batteries would not start again. I could only get it up to 35 - 45 MPH and even less on an uphill grade. I noticed that when the motor picked up that there would be a minor detonation under the hood and a puff of smoke out of the back.

Is this water in the fuel or do I have some type of air lock in the lines that bleeding would have helped? I warmed the truck up for about 20 minutes before starting and the temp here was in the low 40's, so I do not think ice would have been a problem.

Any ideas would be appreciated.

Follow Ups:

• Re: I-H 7.3 missing under load Gary Hearn 20:20:53 02/04/03 (2)
  • Re: Re: I-H 7.3 missing under load alan 05:50:45 02/19/03 (0)
  • Re: Re: I-H 7.3 missing under load alan 05:49:58 02/19/03 (0)
• Re: I-H 7.3 missing under load Pat Mackin 18:14:50 02/03/03 (0)
• Re: I-H 7.3 missing under load WRENCH 309 12:32:09 02/02/03 (2)
  • Re: Re: I-H 7.3 missing under load Gary Hearn 17:57:14 02/02/03 (1)
    • Re: Re: Re: I-H 7.3 missing under load wrench 309 17:49:56 02/03/03 (0)

Post A Followup Name: E-Mail: Subject: Re: I-H 7.3 missing under load Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.