1991 Oldsmobile Bravada Engine timing

1991 OLDSMOBILE BRAVADA
Avatar
RAYMONDW
  • MEMBER
  • 2 POSTS
Engine Performance problem
1991 Oldsmobile Bravada 6 cyl All Wheel Drive Automatic 80K miles

Are there any vacuum or other hoses that need to be disconnected and plugged when do engine timing on a 1991 Bravada?
Mar 16, 2009 at 7:46 PM
Advertisement
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
Need to know if engine is 2.8L,3.1L or 4.3L
Mar 17, 2009 at 2:51 PM
Avatar
RAYMONDW
  • MEMBER
  • 2 POSTS
4.3L
Mar 17, 2009 at 5:15 PM
Advertisement
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
Disconnect Tan/Black Electronic Spark Timimg by-pass connector wire located near heater housing or near distributor or near electrical junction box cover, GM liked to move it around. DO NOT remove 4-wire connector to Dist. Time reconnect EST and clear ECM
Mar 19, 2009 at 8:17 AM