Announcement

Collapse
No announcement yet.

1990 3.3 3300 V6 Buick Engine stall during high rpm heavy acceleration fix fixed

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    1990 3.3 3300 V6 Buick Engine stall during high rpm heavy acceleration fix fixed

    Hey just want to share for anyone with the same problem:

    My dad's 1990 3.3 3300 V6 Buick 120,000 miles Engine would stall during high rpm heavy acceleration.
    Most of the time but not always.
    So full throttle acceleration in first or second gear as the max rpm was reached, the engine would completely die or just barely idle.
    Engine could then be started again although sometimes it would not idle well at first and stumble again.
    Fuel pump/filter was suspect however after replacing these did not fix the problem.
    Then disconnected and checked for corrosion and reconnected crank case shaft position sensor connector.
    Then noticed that sensor wires cover loom missing and covered wires with new loom material.
    What finally fixed the problem was by replacing the super easy to get to and disconnect 2 wire temp sender unit located on the upper passenger side of engine hard to see between serpentine belt using a socket and some Teflon tape on the threads and careful not to over tighten at all, for $8 on eBay.
    Also replaced radiator cap was bad causing coolant level to be low.
    PS: I highly recommend Napa's peak global lifetime coolant when doing a coolant change!

    Take care!
Working...
X