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Lift pump leaking

Yahoo Message Number: 91641
We have been gone for 2.5 months in the motor-home and on a 27 day cruse with Princess. Today I started my clean up and service, only to see diesel leaking from the Lift pump. Thanks to this group I recalled some had found the hard to get to bolts lose. I did tighten the bolts and the leak stopped but my question is was this a temporary fix?

Lowell

#11725 Intrigue ISL 400

Re: Lift pump leaking

Reply #1 –
Yahoo Message Number: 91652
yes, that was my experience. Had to change the lift pump. What year is. Your coach?

Larry 03 Allure 30856

Re: Lift pump leaking

Reply #2 –
Yahoo Message Number: 91655
This begs another question. Since the lift pump failure has been often reported in recent times, and blamed it on the ULSF; have the pump manufactures changed the construction materials to eliminate the problem, and if so when?
Lee (leozbrowski@...) 2007 Country Coach Intrigue 12153
CAT C-13

Re: Lift pump leaking

Reply #3 –
Yahoo Message Number: 91656
On IRV2 Cummins board, they reported that yes the replacement units are now set for ULSF. One of the reasons I use XPD in each tank, is to hopefully stall this from taking place on our ISL. We have a 04 model, but found out that the engine was made in June of 2003 and is a CAPS unit.
Many owners report high miles on their ISL's and ISC's with no problem by running extra lubricants in their tanks. Figure it is low cost insurance, and the extra cetaine can't hurt either.
If, probably when, ours goes out - we'll add an additional pump to aid the replaced lift pump. Probably overkill, but not that much more $$ in the overall scheme of things. I will especially do this if I decide to go ahead with the MP-8 mod. (Still on the fence on this, as I find the ISL370 covers us well 95+% of the time. Suspect the ISL Common Rail would have given me that extra bit of power band range to satisfy me. But, no retro from CAPS to Common Rail:)!)

Best to all,
Smitty

04 Allure 31017
04 Allure Sold to a nice new owner! Now enjoying a 07 Magna Rembrandt 45' ISX600 #6775
"We're ONDROAD for THEJRNY!" (Toad and Coach license plates, say Hi if you see us!)

Re: Lift pump leaking

Reply #4 –
Yahoo Message Number: 91657
Thanks, still would be nice to know what year the factory original pumps were redesigned for ULSF.

Lee (leozbrowski@...) 2007 Country Coach Intrigue 12153
CAT C-13

Re: Lift pump leaking

Reply #5 –
Yahoo Message Number: 91663
Lee I was at a Cummins Q & A in 06 Regarding an ISL 400 I got the

Impression that an adjustment had been made to deal with the USLF fuel Bob 06 intrigue 12047

Re: Lift pump leaking

Reply #7 –
Yahoo Message Number: 91673
Hi Bob. Yes, but when? Would a 06 or 07 have the old or newer setup? Had a great week in Door County this past July!
Lee (leozbrowski@...) 2007 Country Coach Intrigue 12153
CAT C-13