Thread: Fuel Pump issue

And how can we help?
The cheap replacement fuel pump options for 3.9 efi are well documented if you do a search.
If a carby , the old tick tick facet is still the best IMHO.
Regards Philip A

Oops---Must've missed part of my post!


My mechanic reckons that there is supposed to be "around about 39-40 PSI" of fuel pressure at the regulator, and there only seems to be, according to him, 20-25. Is it a pull down and fix or new jobby?

This is for a 3.5 EFI.


Cheers,
Nick.

Hi Guillocuda,
Mine has done the same on a number of occasions over the past. Usually lasts about five years I did my forth about six months ago. You may be able to motivate it by hitting the middle of the petrol tank with a lump of wood as you try to crank the motor. My last one just completely died at a service station after I had just filled the car. Mine is located in the petrol tank and it is fairly easy to replace after you drop the tank out. You may have to do a little rewiring as my last one was a different set up then the previous. If I can do it I am sure you will have no problems.

That's not far off of what happened to me, Peter.

I had just been to the petrol station for a little bit of a top up, visited a mate, and on the way to my last stops of the day at another mate's and a cheaper petrol station, I came around a pub on the corner--and it suddenly got very quiet under the hood. Instantly warning lights went on in my head and pulled over--despite it being downhill the rest of the 200m till my mates--which is where the car is now residing for now.. No coughing or spluttering--just sudden silence, and failure to start (would turn over fine)

Question: My old man seems to reckon any fuel pump suitable for a V8 engine will work--is this true?

You can use a VN commodore V6 pump in these, Bursons or Sparco etc will have one on the shelf.

JC

That is good "out of the square" thinking Justin.Well done! Does the same apply to the 3.9....and LSE?

On later cars there is an access plate under the carpet, if not you can cut your own to save dropping the tank. I think the pump and sender unit are one item from L/R but as stated a Commodore and other generic in tank pumps can be fitted with a bit of effort.

http://cgi.ebay.co.uk/RANGE-ROVER-CL...item5ad193fd1e

Your one is too old for an access plate, so cut your own through the floor. Remove the pump assembly and it is then clear as to how to replace the pump. The VN commy one is identical in flow and pressure so that is all we use, suits ALL 3.5, 3.9, even 4.6's (Not in P38's though, talking about fitted to RR's and D1's etc. Also These pumps are not suitable for Thor engines, D2 and late P38 for ex.)

Now get to it with the nibbler and get cracking for the weekend trip!

JC