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: 22903
Experience:  BEng hons Mech engineering, in auto industry 22 years
Type Your Car Question Here...
Matt is online now

I have an old Daihatsu rocky which we use in the field we have

This answer was rated:

I have an old Daihatsu rocky which we use in the field we have horses. it starts really easily but lately its been cutting out after 5 or 10 min but soon starts again and then runs for awhile before cutting out again. it seemed to occur after refuelling but not sure if this has any bearing on the ma


this sounds like a lack of fuel and could be a lack of fuel pressure from the electrical pump at the tank.

If the connections to the pump are corroded or damaged then the pump could stop at any time or could not be running at full speed. Check that its relay switches in and out and the relay contacts are clean and bright – replace the relay if in any doubt and do the same for the fuse,

Ideally measure the pressure at the injectors ( if fitted some were on a carburettor) and if this is low check the pump as described and also consider changing the fuel filter as if this partially blocked this too will reduce pressure.

Matt and other Car Specialists are ready to help you

do you still need help?
Customer: replied 2 years ago.

Hi Matt

Thanks for the reply. I will have a look at this and get back to you if there is anything more I need to know. Sorry it's taken me so long to look at it have been away.

Thanks Derek