The Diesel Stop banner
1 - 2 of 2 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
I have a 1997 f350 7.3l that I'm having a power lost. When sitting in driveway at an idle, the truck runs rough. When I rev the motor up to 2000 rpm. She runs rough then all of a sudden she loses rpm to about 500 rpm. If I keep my foot in it it will slowly build up rpm and than lose it again. I change fuel filter, water fuel separater sensor. Replaced fuel pump last summer. It's got me baffled. What can be the cause. Need help badly. She only has 200,000 miles on her
 

·
Premium Member
Joined
·
15,464 Posts
I would swap out your spare CPS (you do keep a spare, right?) just to rule that out. Then, I would actually get some measurements. Fuel pressure, IC pressure, IPR duty cycle, and boost. It may be something as simple as an ICP sensor failing or its harness.
 
  • Like
Reactions: 1997VAstroker
1 - 2 of 2 Posts
Top