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I know have 4,000 miles on the 6.5 Optimizer.

Thank you Paveltolz for hosting me. Glad you finally got to drive the ‘99 after our Optimizer install last August (transfer case was stuck in neutral, so we couldn’t drive it). I’ll some minor things to work on, but hopefully I am mostly fishing. The 2nd leg of the trip to Montana was uneventful.

Changed the oil on the ‘99 with the new 6.5 Optimizer at 2300 miles since the change at 500 miles. Headed up to Montana this weekend and did not want to go past 3000 on this oil change. Truck is running great.

Marty, I find that persistence wins the day and you most definitely got it. May God bless this 6.5 Optimizer with a long life.

Progress

Is the roughness or hesitation gone?

That’s a good price. What is Flight System’s reputation on reman pumps? I have two cores in the garage and probably should send at least one in for a reman.

https://www.facebook.com/reel/1401470017566886?fs=e&mibextid=wwXIfr&fs=e

Marty your reman IP worked for me during my brief test runs. At worst it is some sort of seal causing the problem. The hard components should be fine. Do not condemn it.

There were several words used that I did not know WTF he was talking about. So It’s a two person job.

The gluing takes 10 minutes. One guy glues and fits the pipes, the other guy uses a plastic dead blow hammer to smash them together.

If I could get some help with gluing, those pieces would bring the total to 120’+ for this weekend. The remaining portion is another 140’.

I went with the AC Delco reman off Amazon for $794 with shipping. Last I looked they were $1,100 and now I can no longer find them.

It’s SoCal, we’re lucky to see below 32 F every 10 years or so.

Progress…

Circled in red should be your incoming fuel line to the lift pump. The o-ring here was always damaged with advanced age. The other fitting is your return line. I replaced both with AC Delco, which will cost you $200+, but you could just try new o-rings which you can get at Napa for < $10. The...

Probably the right thing to do.

Lock that TDCO and call it good. All of my prior air leaks were on the suction side of the lift pump. Just because it’s new, does not mean it’s good. For me is was always a mangled o-ring at the tank sender.

Lock that TDCO and call it good. All of my prior air leaks were on the suction side of the lift pump. Just because it’s new, does not mean it’s good. For me is was always a mangled o-ring at the tank sender.