Valves tap on cold start
#1
Valves tap on cold start
It sounds as if my valves are tapping for about a second whenever I start up my 1.8, especially when it is about 10-15 degrees outside, is this normal? any ideas as to why this might be happening?
#2
RE: Valves tap on cold start
ORIGINAL: A4_Spooler
It sounds as if my valves are tapping for about a second whenever I start up my 1.8, especially when it is about 10-15 degrees outside, is this normal? any ideas as to why this might be happening?
It sounds as if my valves are tapping for about a second whenever I start up my 1.8, especially when it is about 10-15 degrees outside, is this normal? any ideas as to why this might be happening?
#3
RE: Valves tap on cold start
Typical of the 1.8t on cold starts. if it doesnt go away in 5 minutes or so you probably have slight sludge buildup around your lifters. You can use an oil cleaning additive (I used Justice Bros and it worked quite well) or try going to a lighter synth oil to see if it helps the problem.
#5
RE: Valves tap on cold start
My try seafoam to clean up the fuel injection system and combustion chamber. Just did this on my car recently. Do a search on this forum for "seafoam". There is a link to a nice write up for 2.8s; however, there is mention in that thread of what to do with the 1.8.
#8
RE: Valves tap on cold start
ORIGINAL: JoeyZ
Im laughing....love the brutally honest description of your car.
Im laughing....love the brutally honest description of your car.
#9
RE: Valves tap on cold start
Does the noise ever return on hot idle? If so, this would indicate oil starvation of the cam chain adjuster, probably due to leaky cam seals.
Are you using a 0W-40 or 5W-40 oil? A course of Auto-RX may help, as well.
Are you using a 0W-40 or 5W-40 oil? A course of Auto-RX may help, as well.
#10
RE: Valves tap on cold start
ORIGINAL: John_E
Does the noise ever return on hot idle? If so, this would indicate oil starvation of the cam chain adjuster, probably due to leaky cam seals.
Are you using a 0W-40 or 5W-40 oil? A course of Auto-RX may help, as well.
Does the noise ever return on hot idle? If so, this would indicate oil starvation of the cam chain adjuster, probably due to leaky cam seals.
Are you using a 0W-40 or 5W-40 oil? A course of Auto-RX may help, as well.