wont idle

Discussion in 'Technical' started by emosun, Apr 4, 2012.

  1. emosun

    emosun Member

    Joined:
    Apr 4, 2012
    Messages:
    31
    Likes Received:
    0
    Trophy Points:
    0
    Vehicle:
    77 maverick
    I just bought a 1977 maverick 4 door with the 6 cyl engine.

    It drives and shifts ok , but it wont stay running unless I have the gas pushed down. It's start right up but dies immediately if I dont keep the pedal down. I tried setting the idle real high but that didnt work.

    I'm an engine noob so please keep it simple.

    I've heard vacuum leaks or IAC maybe to blame?
     
    emosun, Apr 4, 2012
    #1
  2. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    Welcome to the center of the Maverick/Comet universe!!!
    A 77 Maverick does not have an IAC (Idle air control) system. A vacuum leak is however a good possibility.
     
    Mavman72, Apr 4, 2012
    #2
  3. emosun

    emosun Member

    Joined:
    Apr 4, 2012
    Messages:
    31
    Likes Received:
    0
    Trophy Points:
    0
    Vehicle:
    77 maverick
    Ok , also , I was told it had a clogged cat , could that contribute as well?

    Also when I drive along I can hear hissing noises from the passenger side under the dash and it changes when I play with the climate controls.
     
    emosun, Apr 4, 2012
    #3
  4. Earl Branham

    Earl Branham Certified Old Fart

    Joined:
    Mar 9, 2002
    Messages:
    6,367
    Likes Received:
    201
    Trophy Points:
    218
    Garage:
    1
    Location:
    Lugoff, SC
    Vehicle:
    '69.5 Maverick 302, T-5, Grabber Green
    You have a vacuum line for the a/c broken or loose. Finding it might fix your problem.
     
    Earl Branham, Apr 4, 2012
    #4
  5. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    A clogged up catalytic converter will cause the car to be pretty much undriveable due to lack of power caused by extreme backpressure. Fix the vacuum leak firat and see what you get...
     
    Mavman72, Apr 4, 2012
    #5

Share This Page