: 1990 DeVille idles rough



patricko
03-27-13, 10:14 AM
Title says it all.

When firing her up for the first time of the day, ususally she idles rough and struggles to accelerate. Lasts for about 30 minutes then runs smooth.

Anyone have this issue? or know good ways to diagnose it?

Ranger
03-27-13, 11:17 AM
Sounds a lot like a vacuum leak.