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Upper engine clatter

3K views 14 replies 5 participants last post by  johntorino68 
#1 ·
Gentlemen. The engine in my 2005 Rio seems to have a LOT of valve train clatter at lower RPM's. Is this endemic of those engines and should I ignore it? John--Las Vegas
 
#12 ·
Thanks for the info. At rpm's 1200-1500 the noisy lifter becomes nearly quiet. It its leaking down during operation, it seems to pump up a bit at speed. This was a 70K. used car I bought a month ago. I immediately changed the oil and filter. Perhaps it was a bit sludged up. We'll see. Thank you. John--LaS vEGAS
 
#14 ·
You REALLY should check the oil pressure with an analog gauge. Using the higher viscosity oil forces a higher pressure that pumps up those lifters. Rule of thumb is 10 psi for every 1k RPM. Reasons for low oil presure is bad oil pump or worn out bearings. Look carefully for "glitter" the next time you change oil.

-SP
 
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