Hello all,
I just recently finished my 1998 Dodge Ram Conversion and everything seems to be working fine besides the problem the title suggests. While taking a trip this weekend I was driving on WVO and the truck started to surge. RPMS and speed would drop and all power would be lost for a few seconds then it would pick up again for 10-15 seconds then it would surge again. I am trying to figure out why this is happening. I'm not sure if it's a weak (original?) mechanical lift pump struggling with oil, a worn/ tired overflow valve, a clogging filter (I changed it on the trip to see if it would help), or a combination of the three causing my problem. I don't have a fuel pressure gauge and am looking into getting one. It doesn't happen at lower speeds or any other place just on the freeway. It doesn't happen on WOT acceleration so I'm quite stumped.
Any help would appreciated.