1999 s70 awd Kat fuel pump by hole, no wait, tank drop, no wait , axle drop

Post by **abscate** » 12 Aug 2022, 05:55

Thread to document where to cut at right rear seat to get to main fuel pump

Robert video link for v70, slightly different

Post by **abscate** » 12 Aug 2022, 06:29

S70 does not have the rear seat catch like the v70

Post by **abscate** » 12 Aug 2022, 11:01

The S70 floor plan is different than the v70 bit lots of good info here , including cross reference to aftermarket pumps!

viewtopic.php?t=20367

Post by **abscate** » 12 Aug 2022, 11:25

Oh oh oh oh ….

by jimmy57 » 31 Oct 2011, 12:00

850 AWD is exactly the same.

I have replaced 3 tank pumps on Gen 1 XC70's lately and I do a partial drop of tank without lowering suspension.
You remove the RH trailing arm with its forward bracket, disconnect driveshaft from VC, take VC together with its housing off the rear diff (mark the flange so it can be put back where found), remove access cover and undo the connectors, and then take off straps and let RH side of tank down. Oh, take off the exhaust pipe from catalyst to the muffler pipe over LH wheel driveshaft.

No need to cut hole in floor, wire routing is easy, and tank is down far enough for sending unit to go in and out with no trouble.
The VC flange has 6 8mm inhex bolts and the housing is held to diff with four 14mm head bolts.

The hardest part of the whole job is getting the fittings to unlatch on the sender. I used a tool meant to depress the collar on those fittings and bent it to work down in the hole but it still was a pain.

Post by **scot850** » 12 Aug 2022, 12:58

Wow! That is even easier than the video I was trying to find. Other than the removal of the muffler and VC unit that is not too bad. Easier than on a wagon too as you don't have to remove the trunk area flooring panels to get to the cover plate.

When undoing the bolts on the VC unit to the rear diff, I used a long extension rod to get to the bolts both for undoing and torquing them back up.

Not sure on the reference for the 850 AWD? Does he mean the fuel pump is the same or the process? The pump is also listed as NLA

Good Luck!

Neil.

Post by **abscate** » 14 Aug 2022, 04:38

I’ll be partial tank dropping Monday night. I’ll take pictures on the S70 to documemt

Post by **abscate** » 14 Aug 2022, 05:33

Can someone with VIDA see if there is a fuel tank drop proCedure for Awd ?

P OST up please

Post by **foggydogg** » 14 Aug 2022, 10:53

abscate wrote: ↑14 Aug 2022, 04:38 I’ll be partial tank dropping Monday night. I’ll take pictures on the S70 to documemt

Third round trip for some of those fasteners ?
At least nothing will be un-Godly stuck this time.

Post by **scot850** » 14 Aug 2022, 12:06

There is a procedure for it, but it includes the full rear subframe and tank drop. I may have it on my PC. I will look later and post it.

Neil.

Post by **abscate** » 14 Aug 2022, 13:40

I found it in all data