oil pressure sensor

  1. A

    '98 Tahoe Mystery Oil Leak

    I have a '98 2-door Tahoe, and have some oil leaking from the motor. Due to a blown head gasket a little while back, I put in a brand new 5.7 crate motor about 5,000 miles ago. The new engine runs amazing and if it weren't for leaving evidence in every spot the truck has been parked in, you'd...
  2. J

    2001 Tahoe 5.3L Oil Pressure switch, need o-ring?

    Can anyone tell me if the oil pressure sensor behind the intake near the firewall needs a o-ring? The part number is acdelco d1818a. It does not say in the description if it need the o-ring or not.........Thanks!