Have you recently switched from a gas-powered vehicle to an EV, or vice-versa? A national TV broadcast network would like to speak with you; please reach out to [email protected] by 12/5 for more details.
Are you a current or prospective Tesla customer who is having a change of heart about the brand? A national news reporter would like to speak with you; please reach out to [email protected] by 12/5 for more details.

Motor only runs when a spark plug is removed

dimebagbubbadimebagbubba Member Posts: 1
edited May 2016 in Ford
2002 ford explorer 4.6 won't start unless a spark plug is removed. Coolant busted out up from behind engine. Started running terrible now it won't run unless a spark plug is removed. Why will it only run while a plug is removed?
Tagged:

Answers

  • cmhj2000cmhj2000 Se, Pa.Member Posts: 381
    edited May 2016
    Won't run or won't turn over?

    Coolant "BUSTED" out? Hydro locked? Head gasket? Lots of miles???
  • Mr_ShiftrightMr_Shiftright Sonoma, CaliforniaMember Posts: 64,482
    Sure sounds like hydro-locking. Does that spark plug have any sign of coolant on it?

    I also wonder, if not a head gasket, if the valves are not opening on that cylinder for some reason.
Sign In or Register to comment.

Helpful Tools

Most popular vehicles