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Matt
Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 22154
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Have jcw ten plate it's turning over five six times before

Customer Question

Have jcw ten plate it's turning over five six times before starting only just happened
Submitted: 1 year ago.
Category: Car
Expert:  Matt replied 1 year ago.

Hello

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

1st thing to try is to remove the fuel filler cap and then flick the ignition on whilst listening for the brief ‘buzz’ of the pump

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 injector rail (should usually be around 3Bar / 45psi +) 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.

Also replace the spark plugs if any of them fail this checklist:

http://www.ngksparkplugs.com/tech_support/spark_plugs/faqs/faqread.asp

Matt and other Car Specialists are ready to help you
Customer: replied 1 year ago.
Shall do a review when have check out your advice
Expert:  Matt replied 1 year ago.

understood