Engine bogging down while accelerating
Thread Starter
|
3rd Gear
Joined: Apr 2026
Posts: 3
Likes: 0
Engine bogging down while accelerating
Hey guys! I have a 93 f250 7.3 idi naturally aspirated and I started having a problem when I am accelerating my engine will bog down momentarily then jump back to normal RPMs. It does it consistently and just generally running bad. I replaced all my fuel injectors, return fuel lines, fuel filter, lifter pump, and did the fuel heater delete and I had one solid day where the truck ran fantastic! Now about two weeks later is is doing the same bogging down and generally running bad. Anyone have any suggestions on what I can try next?
Logistics Pro
Joined: Nov 2013
Posts: 3,928
Likes: 1,199
From: Mojave, Ca
That sounds like a injection pump problem to me. How old is the pump? My first step would be to soak the fuel pump in diesel kleen to clean up the interals.
To do this, remove your fuel filter and drain it. Fill the fuel filter with diesel kleen and reinstall it. Then start the engine for 30 seconds and shut it off. Let it sit overnight or longer and then drive it around to see if its improved.
To do this, remove your fuel filter and drain it. Fill the fuel filter with diesel kleen and reinstall it. Then start the engine for 30 seconds and shut it off. Let it sit overnight or longer and then drive it around to see if its improved.
4th Gear
Joined: May 2025
Posts: 4
Likes: 0
From: North
Proto has good info,, try it. Also, what fuel pump do you have? The mechanical one has a rubber diaphragm that degrades over time. There is also an “olive” on the hard intake line from the pump to the fuel filter. This is an area for air leaks. The mechanical fuel pump is not real expensive, if my memory serves me correctly I bought a new Carter from RockAuto. Changing the fuel pump is your next step if the Diesel Clean fails. Good luck.
Thread
Thread Starter
Forum
Replies
Last Post
Da Timeem
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
7
Apr 24, 2024 12:04 PM
cableguy1169
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
5
May 30, 2022 01:15 PM
Walleye Hunter
1999 - 2003 7.3L Power Stroke Diesel
12
Mar 8, 2014 07:37 PM
