Vacuum question
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
Vacuum question
1989 L98 with auto trans
I did vacuum test and got a reading of 18. I did notice that the needle did move so very slightly, but never enough to get to 17 or 19 while at steady idle. Is it normal. I trying to run down a rough idle problem
I did vacuum test and got a reading of 18. I did notice that the needle did move so very slightly, but never enough to get to 17 or 19 while at steady idle. Is it normal. I trying to run down a rough idle problem
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
I would say that very good idle vac and more likely the small changes are because its chasing the idle changes rather than the idle is chasing the vacuum changes.
Melting Slicks
Joined: Jan 2008
Posts: 2,054
Likes: 120
From: AZ
