answersLogoWhite

0

Blue smoke = excessive motor oil.

Black smoke = excessive fuel.

White smoke = engine coolant

User Avatar

Wiki User

10y ago

Still curious? Ask our experts.

Chat with our AI personalities

SteveSteve
Knowledge is a journey, you know? We'll get there.
Chat with Steve
FranFran
I've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
More answers

Weak rings and worn valve guides. It's time for an overaul.

User Avatar

Wiki User

20y ago
User Avatar

Motor oil is getting into the combustion chamber - probably through the valve seals.

User Avatar

Wiki User

16y ago
User Avatar

Bad oil ring or worn piston bore.

User Avatar

Wiki User

19y ago
User Avatar

Add your answer:

Earn +20 pts
Q: What causes blue smoke from a 1968 Chevy only on deceleration?
Write your answer...
Submit
Still have questions?
magnify glass
imp