Mitsubishi Canter High revs slow to idle Help please
Register
Results 1 to 7 of 7
  1. #1
    DK Veteran

    Join Date
    Feb 2010
    Location
    Essex/East London Boarder
    Posts
    364
    Thanks Thanks Given 
    330
    Thanks Thanks Received 
    121
    Thanked in
    97 Posts

    Default Mitsubishi Canter High revs slow to idle Help please

    hi all .
    I have a Canter a 2004 model 3.9 diesel.
    The problem is that when its revs to approx 2000 rpm or above and the throttle is realesed
    the revs take appox 20 seconds to drop to normal idle.

    Under 2000 revs all seems to operate ok.

    Have replaced throttle sensor (fly by wire)and have done various checks ie visual wiring etc and checked for restrictions in air pipes etc .

    All help and ideas will be much appreciated .

    Regards Todd

  2. #2
    DK Veteran

    Join Date
    Feb 2010
    Location
    Essex/East London Boarder
    Posts
    364
    Thanks Thanks Given 
    330
    Thanks Thanks Received 
    121
    Thanked in
    97 Posts

    Default

    Vehicle now sorted .
    Thanks for all that looked at thread .

  3. #3
    DK Veteran Poptest's Avatar
    Join Date
    Sep 2010
    Posts
    777
    Thanks Thanks Given 
    146
    Thanks Thanks Received 
    114
    Thanked in
    42 Posts

    Default

    Hello Recorder................. Please share your fix so we can learn....................Thanks, Poptest

  4. #4
    DK Veteran

    Join Date
    Feb 2010
    Location
    Essex/East London Boarder
    Posts
    364
    Thanks Thanks Given 
    330
    Thanks Thanks Received 
    121
    Thanked in
    97 Posts

    Default

    Sorry just looking at post on Canter and see i didnt give solution.

    The fault was a sticking valve on the pump where it recives the fly by wire signsl .
    Big Hex Nut with wires on Fuel pump.
    Took it apart and cleaned needle valve and ran fine for 6 months then played up .
    So replaced it at a cost of £300 andhas run fine ever since .
    HTH somone

  5. #5
    DK Veteran Poptest's Avatar
    Join Date
    Sep 2010
    Posts
    777
    Thanks Thanks Given 
    146
    Thanks Thanks Received 
    114
    Thanked in
    42 Posts

    Default

    Quote Originally Posted by Recoder View Post
    Sorry just looking at post on Canter and see i didnt give solution.

    The fault was a sticking valve on the pump where it recives the fly by wire signsl .
    Big Hex Nut with wires on Fuel pump.
    Took it apart and cleaned needle valve and ran fine for 6 months then played up .
    So replaced it at a cost of £300 andhas run fine ever since .
    HTH somone
    I’m having the same problem with a Mits 4M50. Engine decelerates normally when cold, then stays at approx 1200 rpm when hot. Do you have a picture of the part you replaced?

    Thanks

  6. #6
    DK Veteran

    Join Date
    Nov 2016
    Posts
    385
    Thanks Thanks Given 
    157
    Thanks Thanks Received 
    40
    Thanked in
    31 Posts

    Default

    Please share same problem

  7. #7
    DK Veteran

    Join Date
    Feb 2010
    Location
    Essex/East London Boarder
    Posts
    364
    Thanks Thanks Given 
    330
    Thanks Thanks Received 
    121
    Thanked in
    97 Posts

    Default

    Sorry guys dont have a picture.
    It a big nut on the diesel pump approx 30-38 mm cant remember .
    Its the other end to the fly by wire from the pedal it that helps.
    there was a shim in the assembly and a needle which needed cleaning (dont lose shim)over 50 different sizes to get ideal speed so you lose it could take you a while to set it back up,
    Hope this helps

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.