How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matt Your Own Question
Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 23189
Experience:  BEng hons Mech engineering, in auto industry 22 years
Type Your Car Question Here...
Matt is online now

I have a 4.6 v8 range Rover with a multipoint lpg system by

Customer Question

I have a 4.6 v8 range Rover with a multipoint lpg system by Prinz. It's started being reluctant to turn onto the LPG system despite being warm... is there some simple servicing that I can do, as a relatively competent amateur spanner wielder? This system is now 10 years old, the last 3 years in my ownership. I have installed 3 single-point LPG systems myself on Classic Rangies in the past, all successfully done! Any help greatly appreciated, as I'm miles from any help...!
Submitted: 6 months ago.
Category: Car
Expert:  Matt replied 6 months ago.


I'd start by adding a bottle of injector cleaner to the gas tank , as this will help with sticking valves

then its usually a case of checking for any leakage, change the LPG filter and run a computer diagnostics.

there's usually a valve lubrication system too so check that its top up tank is at the correct level, Add around one liter of lubricant for 10,000 kilometers

My goal is to give you the best advice that I can and I hope that I've helped today. Please remember to rate my service by selecting from the 5 stars at the top of the screen before you leave. If you need more help, use the reply box to let me know.

Expert:  Matt replied 6 months ago.

do you still need help?
Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. I am only paid for my work on this question if you rate my answer, using the star system at the top of the screen. Please do not forget! Thank you