Anyone replace there pressure relief valves under the valve covers?
02-18-2003, 05:15 PM
#5
Junior Member
Join Date: Jan 2003
Posts: 1,054
Likes: 0
Received 0 Likes
on
0 Posts
Re: Anyone replace there pressure relief valves under the valve covers?
It's called gravity. When the car sits, most of the oil drains to the pan. I started using the Mobile one filters and the noise went away. It has some kind of check valve in it to hold some of the oil in the top of the engine.
02-19-2003, 05:34 AM
#6
New Member
Thread Starter
Join Date: May 2002
Posts: 401
Likes: 0
Received 0 Likes
on
0 Posts
Re: Ahh, yes this is what I am suspecting at the moment
along with the Mobil 1 filter I understand the audi/mann and possibily the bosch filter have good quality check valves in them. Appreciate your feedback...
02-19-2003, 12:50 PM
#7
Audiworld Junior Member
Join Date: Apr 2002
Posts: 29
Likes: 0
Received 0 Likes
on
0 Posts
Replaced them - HUGE difference
In my case, i had lifter tap worse when car was warmed up, although it was still there when cold. Unscrewing the valves revealed BOTH had their springs popped out and were blown apart. I had to fish them out with a coat hanger, ANYWAYS it was HUGE difference after putting in new ones. Dealer gave me the "All Audis have valve noise" crap about 1 yr earlier. Sometimes you just gotta do it yourself.
