Results 1 to 4 of 4

Thread: CEL diagnosed as a bad purge valve - engine shudder when idle?

  1. #1
    Newbie
    Join Date
    Apr 2008
    Location
    GTA East
    Ride
    2011 Subaru Forester
    Posts
    124
    Thanks
    1
    Thanked 4 Times in 4 Posts
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Default CEL diagnosed as a bad purge valve - engine shudder when idle?

    Hey guys my CEL has been on an off for about a year, I had it checked out when it first came on and Mazda told me it was probably nothing crucial and that it was most likely an issue with the gas cap not being tight and the tank not retaining pressure or something along those lines. They told me to wait and see if it comes back. It took a few months and it had come back on again, this time I took the car to my father in-law's shop and he checked the CEL again and it came up as an issue with the evaporator system and once again told me it was probably nothing. Well finally it's come on again and I had it checked and it sounds like I have a faulty Purge Valve, I understand this is no big issue and it can wait. The only thing is I have been experiencing slight engine shudder when I'm sitting idle as well as a slight ticking that I can't seem to remember being there when I first got the car, any ideas if these issues are related or if the shuddering/ticking is something else?

  2. #2
    Sr Member -RJ3-'s Avatar
    Join Date
    Jun 2004
    Age
    46
    Posts
    7,791
    Thanks
    42
    Thanked 115 Times in 74 Posts
    Mentioned
    77 Post(s)
    Tagged
    0 Thread(s)

    Default Re: CEL diagnosed as a bad purge valve - engine shudder when idle?

    When you accelerate, and decelerate do you notice a big shudder like the car is bogging?

    check your maf connector... if you have it attached from the battery box disconnect it.. I had the same problem.. the clips was pulling the maf wires enabling this bogging...
    Photographer for Street Concepts online magazine
    Kaption Audio show team
    The Lowerclass

  3. #3
    Newbie
    Join Date
    Apr 2008
    Location
    GTA East
    Ride
    2011 Subaru Forester
    Posts
    124
    Thanks
    1
    Thanked 4 Times in 4 Posts
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Default Re: CEL diagnosed as a bad purge valve - engine shudder when idle?

    hmmm, I'll check it out....I have a 5-spd but it has felt that it is bogging a bit, though it could be driving or that could explain a lot.

  4. #4
    Sr Member -RJ3-'s Avatar
    Join Date
    Jun 2004
    Age
    46
    Posts
    7,791
    Thanks
    42
    Thanked 115 Times in 74 Posts
    Mentioned
    77 Post(s)
    Tagged
    0 Thread(s)

    Default Re: CEL diagnosed as a bad purge valve - engine shudder when idle?

    mind you i have a cai.... if you have a stock air box, maybe disconnecting the maf and reconnecting it would fix it.. also disconnect the battery connector, reconnect for the ecu to relearn itself again

Similar Threads

  1. Engine Noise while Idle
    By colinchrisc in forum Engine & Drivetrain
    Replies: 1
    Last Post: 12-14-2009, 08:39 PM
  2. Is Purge valve part of the drivetrain?
    By taojin84 in forum Mazda3 General Discussion
    Replies: 2
    Last Post: 01-25-2009, 12:47 PM
  3. How to install purge valve
    By CanSpeed 3 in forum Engine & Drivetrain
    Replies: 6
    Last Post: 09-17-2008, 07:10 PM
  4. Bad purge valve - how bad would it be to keep driving?
    By DriverEd in forum Problems with the Mazda3
    Replies: 7
    Last Post: 04-22-2008, 05:12 PM
  5. purge solenoid valve
    By mazda3 gx in forum Mazda3 General Discussion
    Replies: 2
    Last Post: 12-07-2004, 01:22 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •