Low Oil Pressure light on/ No engine power

(2005 Tacoma V6- 271k)

Hey ya'll I wanted to see if I could get some pointers/direction on how to fix this issue. As stated above I had my oil low pressure light come on today. I was driving on a (flat) highway with cruise control on @65 mph, then the light came on and the rpms were dropping. I stopped cruise control and tried the gas pedal and I still wasn't getting power. so I went to the shoulder and shut the truck off. I tried to turn the truck back on but as soon as it was on the rpms were dropping below 1000 rpm and was going to stall so I just shut it off. Looked at the dip stick and there was more oil then usual. I do my own oil changes so I know/ check to make sure I'm putting the correct amount and type. The oil/filter are pretty new with about 1000 miles on them. Ill be doing a visual inspection later of the oil/ oil pan/ oil pick up and oil filter. Is there anything else I should look at? Could it be the oil pump? I appreciate any help. Thank you in advance.

 

Keep in mind the oil pressure light comes on at a measly 3 psi!!! So driving with zero or almost zero oil pressure and then there is increased resistance in the engine due to lack of oil almost certainly means permanent damage as occurred and you will need a new engine or need to drop it off at a machine shop.

Could have spun a bearing and ran the metal throughout the engine, could have clogged the pickup or blown the pickup o-ring (if it has one, not sure) or any number of major failures.

Drop the pan, inspect the oil and go from there.

 

@Iconic_ would I have heard any metallic sounds from the truck if anything metal went through the engine? I'm curious. as soon as the light came on I wasn't in gear for too long. Also thank you for the the note on the PSI I didn't know that.

 

The bogging down in my theory means the bearings are cooked. It wouldn't have been much longer before it fully seized or made a loud bang. Any metal in the oil would confirm that.

How much oil are we talking was on the dipstick? Well over the full line?

 

@Iconic_ Yes well over full.

 

Perhaps fuel or coolant intrusion/dilution compromising the oil and then subsequent connecting rod bearings, piston rings, etc.? Too much of either is very bad. I can't think of anything else that would cause an over full oil level reading like you are describing. An oil pump failure or any other oil supply system failure wouldn't cause an overfilled indication.

Something caused the overfill. Whether that was the cause of the failure is unknown, but something caused this fairly quick and catastrophic failure.

Loss of oil pressure would announce itself with various noises fairly quickly, but the "concert" would last very long. Overfill failures can happen when the oil in the pan gets churned up and aerated by the crank and turns to foam.

If you determine what happened please come back let us know what it was.

Welcome to Tacomaworld

 

Most likely forgot to drain the old oil out maybe,and refilled with new oil,engine is blown.

 

@Williston Interesting and thank you. Ill keep yall posted.

 

@lynlan1819 That's a negative ghost rider.

 

You need to start with what caused the “over fill” reading.
Is your coolant lever low? (Check at the radiator)

 

@TnShooter I will update you once I check.

 

Coolant mixed with the oil will usually cause it to turn a milky color, and fuel can be checked for by dripping some of the oil from the dipstick on a paper towel. If there is a different shaded ring around the outside, you have fuel in the oil.

 

not trolling, but did the transmission accidentally get drained, and was the motor refilled with oil? Yes, this does happen on here...

 

If water or fuel was in the oil O.P would know immediately just by looking at it.

 

Well water is not a good lubricant and it will be on the bottom along with the pickup tube.

 

So with the significantly high oil level (or possibly oil/water mix) the crank was aerating it until there were so many bubbles and froth in it that it no longer lubricated the bearings.

 

Oil is lighter than water it will float, the pickup is at the bottom it was lubricating the engine with water and it probably didn't take real long to trash the bearings.

 

Total loss of oil pressure with an otherwise good engine is never good news. You are probably looking at some kind of bearing failure unless it's something out of the ordinary. Checking the engine oil very carefully is about the best option you have. You can see and smell coolant and fuel in the oil you hopefully drained first thing. Aside from ripping the engine apart, after you check everything you can, fill it up with fresh oil and hope for the best. I would say this is a "hope for the best, plan for the worst" situation at it's best.
The worthlessness of the Tacoma dashboard on full display. Oil pressure light activates at single digit PSI, temperature gauge the same from 180°F to 220°F, the only indication given is that your motor is fried.
Good luck.

 

at 65 and light came on usually means death to rod or main bearings

Loss of power could have been from oil aeration or coolant getting in from failed head gasket which 2005 have been known to have happen

 

Time for an engine.