RP oil filter pressure relief valve noise?

[boog]

Have been noticing my 2003 SantaFe "coughing" on startup after sitting typically overnight or longer. Started noticing this after I went to Royal purple synthetic on an oil change. Started useing Mobil One synthetic and I am hearing the same thing. For a millisecond after I start it up after it has been sitting overnight or longer a quick "cough" kind of a sound that quickly goes away. No other problems apparent.

I'm starting to think, after searching some other threads, that it MAY be related to my RP oil filter. Seems like some folks have noticed "valve noise" or some such thing on startup when running aftermarket oil filters. I started noticing this about the time I charged over from stock Hyundai oil filters to RP oil filters. Any thoughts?

 

[Joenpb]

Sounds like it would be more of an air filter problem, "Coughing at start up". I have a Royal Purple oil filter on my 2011 Ford Mustang and have no such problems, but have had it on for only 1100 miles.

 

[Joenpb]

Perhaps its just a coinincidance that the noise started with your RP oil change, your car is now close to 10 years old. A time when fuel injectors, & intake plenums/valves can have deposits after years of cheap discount gasoline. Anyway it could be something like that, or another part that is simply worn out. Good luck.