That is the oil pressure light.
This light comes on either due to low oil pressure from oil level being low, oil pressure switch faulty or unplugged, or actual oil pressure issue
If you just changed the oil or had it changed, make sure the oil level is correct..
If ok, the oil pressure switch is on the side of the oil filter housing and may have gotten the plug knocked loose, so you want to check that - see attached.
If above is ok, then the oil pressure needs to be checked with mechanical oil pressure gage. To do this, the oil pressure switch is removed and the gage installed in its place and pressure tested
Note: (at normal operating temperature)
@ Curb Idle Speed - 5 psi
Note: If pressure is ZERO at curb idle, DO NOT run engine at 3000 rpm.
@ 3000 rpm30 - 80 psi
If pressure within specs, replace the switch.
If not, then oil pump is failing
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