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Gary, Technician
Category: Car
Satisfied Customers: 17176
Experience:  GM master tech for 15 years/ASE master tech for 20 years
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suzki xl7: Oil pressure light came on the truck is knocking

Customer Question

Oil pressure light came on the truck is knocking and kinda sluggish
Submitted: 4 years ago.
Category: Car
Expert:  Gary replied 4 years ago.
Welcome to Justanswer ! my name is XXXXX XXXXX i will do my best to assist you with this problem
how much oil did you add ?
is the oil full now ?
this happened and then you saw the oil was empty in the engine ?
can you tell me about the knocking noise?is it a constant noise that increases when you rev up the engine ?
Customer: replied 4 years ago.

i ap2 quarts

Expert:  Gary replied 4 years ago.
ok so the oil light is on now and there is a knocking noise inside the engine that will increase with engine reving up ?
Customer: replied 4 years ago.

thelight on and yes

Expert:  Gary replied 4 years ago.

ok more than likely the engine was too low on oil and has lost oil pressure and thats why the light is on
the noise you are hearing is more than likely a crank rod or main bearing that was damaged from low oil in the engine
the drive belt should be removed and start it up if that noise is still there and the oil is filled up now then the engine will need to be rebuilt or replaced im sorry to say
but an engine knock is a sign a crank bearing has failed