2005 Chevrolet Optra Engine knocking

2005 CHEVROLET OPTRA
106,000 MILES • 1.6L • 4 CYL • FWD • MANUAL
Avatar
JERRYRAMOS55
  • MEMBER
  • 1 POST
My car has engine knocking. When it's cold early in the morning warming up, it's fine. Aftr 15-25mins of driving and then stop at road, at idle, aftr 1minutes it knocks. I already cleaned my radiator on radiator shop, it improves not unlike before na it always knocks even early in the morning. I think, the water cannot cirulate well in engine that's why it knocks. What do u think? And wat do i need to do?
Aug 12, 2015 at 8:47 AM
Advertisement
Avatar
RIVERMIKERAT
  • CERTIFIED EXPERT
  • 6,110 POSTS
Is the knock in sync with engine speed? Can you check the oil pressure? It sounds like rod knock with just your description of the problem.
Aug 15, 2015 at 10:18 PM