dubnutts
New Member
- Joined
- Aug 4, 2008
- Messages
- 24
- Reaction score
- 0
- Points
- 0
- Location
- Camp Lejeune
- Vehicle Year
- 1999 2001
- Make / Model
- Ford Chevy
- Engine Size
- 2.5 4Cylinder 5.7 V8
- Transmission
- Automatic
I have 2 O2 sensors one before the cat and one after the cat. I am thinking about changing them since they havent been changed since i owned the truck and i have had it for 5 years but the one before the cat is all rusted up and seized and im sure the one after the cat will be alot easier. So my question is do i have to change both or can i get away with just changing the easy one. Ill do both but if i dont have to why do it. Thanks all