answersLogoWhite

0


Best Answer

They are screewed into the exhaust system / Pipes. Start were the exhaust bolts up to the engine and work your way back to the muffler and you will find THEM. There could be up to 4 oxygen sensers on yours. There about 3 to 4 inches long and have an electric wire pluged to the ends of them. There will not be any after the muffler.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Where are the oxygen sensors on a 1999 silverado?
Write your answer...
Submit
Still have questions?
magnify glass
imp