Knock sensor? Spun bearings? Confusion.

Tiny
ALLEN924
  • MEMBER
  • 1992 TOYOTA PICKUP
  • 240,000 MILES
Im having a loud knock in my engine. I have attempted a valve adj. At one time and quieted my tick, about two weeks after the adj. My tick came back and became louder and louder. I noticed while exiting the highway while slowing down I no longer had a tick it became a knock. My neighbor suggested it was a lower engine issue, I agreed thinking spun bearings, now Im not so sure, my oil light comes on at lower rpms and goes out at around 2000rpm any suggestions could be helpful.
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Friday, September 2nd, 2011 AT 2:25 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
The knock sensor only prevents valve ping. That isn't the problem if it is a knock. If you are losing oil pressure at an idle, chances are it is a rod or main bearing.
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Friday, September 2nd, 2011 AT 2:28 AM
Tiny
RASMATAZ
  • MEMBER
Check the oil pressure with mechanical gauge to rule out a failed oil pump-start here
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Friday, September 2nd, 2011 AT 2:29 AM

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