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roybelding, ASE Certified Technician
Category: Mercury
Satisfied Customers: 4816
Experience:  35 years of retail operations on all vehicles
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1999 merc sable 3.ol ohc v6 engine started knocking loudly

Customer Question

1999 merc sable 3.ol ohc v6 engine started knocking loudly then motor froze up need possible causes
Submitted: 10 months ago.
Category: Mercury
Expert:  roybelding replied 10 months ago.

good evening my name is ***** ***** I will assist

if it locked up then it is a rotation issue.

possible causes

lack of oil

main or rod bearing failure

broken connecting rod or piston

valve train damage that broke and went int a cylinder

cracked block or heads


Expert:  roybelding replied 10 months ago.

is there anything else I can help with??


Customer: replied 10 months ago.
if this question going cost me another 24 dollars don't answer. do any of these issues require a major over haul ?
Expert:  roybelding replied 10 months ago.

you can ask questions and it does not cost anything. I dont get paid until you rate me. there is no additional charge to you at all.

if the motor is locked up, it needs a major overhaul but it is cheaper to install a used motor.


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