93 Ford 460ci help!!! Fuel Problems

Discussion in 'Mechanic and Repair' started by lawnrangeralaska, May 25, 2006.

  1. lawnrangeralaska

    lawnrangeralaska LawnSite Senior Member
    Messages: 433

    every once in a while my truck will sputter and choke and lose all power , then i switch to either the front or back tank and then my truck runs fine. until both tanks do that. i replaced the filter and the fuel pump relay sensor, i pulled the front tank and it was spotless in side. sometimes my truck acts up and sometimes it doesn't but when it does it leaves u stranded for a period of time. when it stops the motor makes a thumpin sound and like kicks. not sure if i should replace the lines or just the pumps. need help maybe its something electrical like my tank switch or .... ? but my pumps are 180 each so i don't want to just start throwing money away. any help would be nice.
  2. tylermckee

    tylermckee LawnSite Member
    from wa
    Messages: 248

    My work truck is an 89 with the 460 and its done the same thing to me once or twice. Only other time its done it was because i was out of gas in that tank :hammerhead: The damn gauge reads full forever then suddenly it snaps down to E and you dont notice.
  3. lawnrangeralaska

    lawnrangeralaska LawnSite Senior Member
    Messages: 433

    could the switch indicator that switches between front and rear tanks be causing this problem?
  4. Splicer

    Splicer LawnSite Senior Member
    Messages: 992

    Get a new pump before you are left starnded...If possible next time it does it take a rubber mallet and tap the gas tank bottom while the engine is being turned over (takes 2 people). If it starts then you have a bad pump...if not a bad switch/ground etc...

    Hope this helps...:drinkup:
  5. lawnrangeralaska

    lawnrangeralaska LawnSite Senior Member
    Messages: 433

    they had a recal on the pressure regilator, but that didnt solve the problem but i put a new fuel pump in and it solved my problem.
  6. J&R Landscaping

    J&R Landscaping LawnSite Fanatic
    Messages: 5,095

    Sometimes the switch will go bad.

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