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Ford focus 2003 1.8 tdci,really hard to start,checked common things,they're all good but...

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Hi there?
Have you changed the glow plugs and are they getting power (12 volts) when the ignition is turned on.

Posted on May 26, 2011

Testimonial: "hi,thanks for your help.the butterfly works the other way around on this car,i will check actuator tomorrow,and hope i can solve it.thx very helpful."

  • jobbfasz May 27, 2011

    sorry,but as i said common problems all checked out good.injectors,glow plugs,fuel delivery system,compression,battery,split hoses and inlet pipes,MAF cleaned ,no dtc code show up.
    but here is something.the butterfly on inlet manifold is fully open,if i close it manually as i am starting the car and than let it swing open the car fires up in that moment.can someone figure this out?

  • Eddie Sulaj
    Eddie Sulaj May 28, 2011

    Ok thanks for your reply. Sounds like the vacume actuator for the throtle is not woking. when the engine is off , there is NO vacume, so the throttle should be shut due to the force of the spring iside the vacume actuator. when the engine turns over with the throttle shut, the vacuum is created and the actuator reacts to the vacuume and pull the throtle open.
    You can test the vacuum actuator by connecting a vacume pump to the actuator. When the air is sucked out of the actuator it should force the throttle to open. When there is no vacume the throttle should close. I hope this helps. Good luck



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