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Matt
Matt, Mechanical Engineer
Category: Ford
Satisfied Customers: 22932
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Asses failure on ford focus, no power car stoped, engine

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asses failure on ford focus, no power car stoped, engine ticking over. switch off engine, restart engine again what could be the problem.

Hello and welcome to Just Answer

If you haven't already then consider changing the fuel filter as if this partially blocked this will reduce pressure at the main pump

I'd also check all the high pressure hoses post turbo/s for any split hoses or cracked metal pipes, also check the ends of the intercooler as its not unheard of to pop the end caps off under high boost.

If both of these are OK then also check the connections to the EGR valve, if either the vacuum pipe of electrical connection are damaged / corroded then the EGR can be on all time which certainly will hurt performance. Its also possible that its a fault with the EGR valve so its worth removing the valve and cleaning it out with brake cleaner, if it looks particularly clogged then replace it.

If this is OK then check the small vacuum lines to the turbo and its connected control solenoid on the bulkhead, any cracks or leaks can give turbo issues and its best to have the boost pressure measured actually measured with a boost gauge to check that the turbo is healthy and that the sensor is reading correctly

If its a variable vane turbo (they’ll be an actuator on the turbo body - but not a wastegate) then check its vacuum pipework as above and check the connections to the diaphragm / solenoid valve

Also worth checking that the glow-plug relay is switching off as they can stick on and leave the glow plugs also on - on some cars this can force it into limp home

Also worth considering adding a bottle of injector cleaner into the tank as a clogged injector nozzle will reduce power and give poor combustion - the next stage on from this is to remove all the injectors and have them ultrasonically cleaned and flow checked

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.

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Thanks Matt

Customer: replied 1 month ago.
Hi, Mat just got the car finished tonight ,so will let you know wed, or thu, evening hope every thing goes ok thanking you John

No problem

just get back to me on this post

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