answersLogoWhite

0


Best Answer

Lumpy? that's a new one, but a good one.

Most irregular idle problems come from a vacuum leak, check for hissing, sucking noises, a cracked or broken hose.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What causes a lumpy idle on a vectra 1.8 w reg?
Write your answer...
Submit
Still have questions?
magnify glass
imp