Ticking Noise - comes and goes

[txhokie4life]

Got an '00 s.

there are times when I get a ticking noise -- sort of sounds like the normal sewing machine -- but about 4 times as loud.

follows the RPMs

However it is inconsistent -- been going off/on for over a year.

I notice it more often towards the end of my oil life (about 6 miles). -- at least i think this true.

Seems worse with thinner oil /30W, vs /40w or /50w, but still occurs with thicker oil too.

Seems worse if I have less oil (I had a slow leak which I have fixed), so when/if I topped it off -- it would be better for a bit (or so it would seem)

When it is occurring -- it usually is noticed after driving at least 10 minutes. Engine/oil warm?

very noticable when it reflects off a wall or a barrier.

No performance issues that I can tell.

Even today at the shop -- had it running specifically to look/listen to it -- wouldn't do it. Even after idling for 5-10 minutes. Engine was warm. Oil ok, but on the low side.

20 minute drive home -- it was ticking when I pulled into the garage. I think its more pronounced on driver side,

but I think I can here it from both sides. Not sure.

thanks,

Mike

[RFM]

According to the information you provide, it resembles an oil (pressure) related problem. Something as a lifter or oil pressure valve, as the noise comes and goes and is not stable under all conditions. I would use a 5W - 50 oil, new oil filter and maintain the oil on the indicated full level to start with, i would also decide in favor, for an annual oil + filter change, if you do mostly short trips an low mileage.

[pk2]

Weak lifter?

PK