Got a 76 maverick with fuel problems.

Discussion in 'Technical' started by Mustang II, Jul 26, 2008.

  1. Mustang II

    Mustang II Member

    Joined:
    Nov 11, 2007
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    33
    Location:
    Western, NC
    Vehicle:
    76 Maverick 2 dr I6 c4
    Hello again. I finally have the last 70's ford on my wish list, a 76 maverick with a 250 i6 and I'm having trouble with the fuel system when the car is warmed up (about ten minutes after driving).
    It acts like its getting no gas up to the carb, It'll run fine for a minute then act like its out of gas, also before it quits completely it'll only run while idling, hit the gas too many times and it'll die or just plain quit idling all together.
    I took the tank off and cleaned it because the line was completely clogged when I got it, put on a new filter and its still doing the same thing. I'll let it sit for a while and it runs for a minute and quits again.
    I'm thinking either vapor lock, clogged filter (fuel strainer broke off so I put the sending unit back in without one), fuel pump or float but I'd rather get your opinions so I'll know what to try first.

    One more question, what bumpers from other years will bolt on to my 76?
    The front bumper is smashed while the back has rust thru. Thanks.

    ps.And thanks for the help a while back on the toploader 3 spd swap in my Mustang II, to be an old and worn out 6 cyl trans it was one tough little sob. :chirp:
     
  2. mcknight77

    mcknight77 Member

    Joined:
    Dec 4, 2004
    Messages:
    347
    Likes Received:
    25
    Trophy Points:
    102
    Location:
    Boise, ID
    Vehicle:
    74 Mav drag car, 1970 Maverick, 1971 Bronco, 66 Nova, 67 Ranchero
    Sounds like a plugged filter.
     
  3. Bryant

    Bryant forgot more than learned

    Joined:
    Aug 7, 2007
    Messages:
    6,538
    Likes Received:
    153
    Trophy Points:
    203
    Garage:
    1
    Location:
    San Diego
    Vehicle:
    71 Maverick
    it could be a overheating ignition module.
     
  4. GrabA72Mav

    GrabA72Mav Living Our 2nd Childhood

    Joined:
    Mar 5, 2007
    Messages:
    303
    Likes Received:
    2
    Trophy Points:
    0
    Location:
    Eastern Iowa
    Vehicle:
    72 Maverick (Sold) 76 Aspen R/T Super Pack
    Could be fuel pump is weak from clogged lines before or fuel filter. I think I would try a filter first then try a new pump if your sure you got lines and tank good & clean.
    Good Luck!
     
  5. Dave B

    Dave B I like Mavericks!

    Joined:
    Mar 9, 2002
    Messages:
    16,931
    Likes Received:
    215
    Trophy Points:
    347
    Location:
    Parts Unknown......
    Vehicle:
    3 Grabbers
    74 to 77 bumpers will be a direct swap, sounds like you'll also need to find a good rear inner bumper also.
    As for the other problem, I'd check your carb, it could it be full of crap from your tank???
     
  6. PaulS

    PaulS Member extrordiare

    Joined:
    May 3, 2004
    Messages:
    4,858
    Likes Received:
    13
    Trophy Points:
    0
    Location:
    Seattle area
    Vehicle:
    1966 Mustang, 1972, 73, 73 and 73 Mavericks
    Have you measured the fuel pump pressure?
    When you had the tank out to clean it did you blow the lines out and check the filter sock on the pick-up?
     
  7. mavgrab302

    mavgrab302 MCCI Florida State Rep

    Joined:
    Nov 24, 2007
    Messages:
    4,475
    Likes Received:
    140
    Trophy Points:
    147
    Location:
    Ocala,Florida
    Vehicle:
    71 Maverick Grabber
    Maybe this is not the problem, but on my 66 mustang w/302 I had a fuel problem it would idle OK But would suck the fuel filter dry. I had a clear filter on it, not being a mechanic I started replacing fuel parts. Pump,sending unit,filters spent a ton of money only to find out it was my coil. A 15.00 dollar part. Go figure!!!
     
  8. PaulS

    PaulS Member extrordiare

    Joined:
    May 3, 2004
    Messages:
    4,858
    Likes Received:
    13
    Trophy Points:
    0
    Location:
    Seattle area
    Vehicle:
    1966 Mustang, 1972, 73, 73 and 73 Mavericks
    I hear a lot of stories like this. People start replacing parts before they take a little time to test things. Almost every component on your car can be tested to see if it is good. Take a little time to test a component before you replace it and you can save a lot of money and time.
     
  9. 71gold

    71gold Frank Cooper

    Joined:
    Apr 9, 2002
    Messages:
    26,590
    Likes Received:
    2,938
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber

    and don't forget about the...bad...new parts you can buy...:yup:

    ...:bouncy:...
     
  10. PaulS

    PaulS Member extrordiare

    Joined:
    May 3, 2004
    Messages:
    4,858
    Likes Received:
    13
    Trophy Points:
    0
    Location:
    Seattle area
    Vehicle:
    1966 Mustang, 1972, 73, 73 and 73 Mavericks
    All the box says is that the part is new - it doesn't say it works.
    I have had my share of new parts that have been as bad as the one I took out.
    It seems harder to convince those countermen that the new part was bad.... you would think they run into it more often than mechanics.
     
  11. GrabA72Mav

    GrabA72Mav Living Our 2nd Childhood

    Joined:
    Mar 5, 2007
    Messages:
    303
    Likes Received:
    2
    Trophy Points:
    0
    Location:
    Eastern Iowa
    Vehicle:
    72 Maverick (Sold) 76 Aspen R/T Super Pack
    Play Dumb! Get out of replacing it! Make like it is their fault! "ALL" things dishonest parts stores do to keep from standing behind their products!
     

Share This Page