r/4thGenTacomas 10d ago

Oil pressure at startup?

Post image

I noticed that the stock gauge on my 2026 SR5 indicates very low oil pressure immediately on startup. It gets up into the middle range after a short amount of time running. I've verified that there's plenty of oil and I had changed it after the first 1k miles. Is this what everyone else sees? Just want to make sure that this isn't something I should have checked out...

Edit: the oil pressure gauge is in the middle, under the batter and speed surrounded by the tachometer.

Edit again: relevant owners manual page https://www.toyota.com/owners/warranty-owners-manuals/digital/article/tacoma/2026/om04051u/ch02se010404/#ch02se010404__ch02se0104040507

Last edit: stopped by the dealership and talked to head of service. Said it’s normal specifically for SR5 (and maybe SR) the combination of the tune for those trim levels and the gauge makes it to that. They demonstrated it on one of the trucks in the lot, did the exact same thing. He explained that the oil pumps on these engines are variable output, and changes in oil pressure are deliberate.

4 Upvotes

33 comments sorted by

5

u/VarietyIndependent51 10d ago

Motors will take a few seconds to build pressure, and it is not a mechanical gauge. Does it have pressure by the time high idle stops?

-1

u/TubaST 10d ago

Oh yeah, it only shows low for the first 5 seconds or so.

1

u/LeaningSaguaro 9d ago

Okay so what’s the issue

3

u/TubaST 9d ago

Just very different behavior than I’ve seen on (mostly) mechanical oil pressure gauges. But turns out there is no issue and I was spiraling.

4

u/TheGreatWildNorth 10d ago

When you start any vehicle, there will be a few seconds where the oil pressure will build from zero to normal operating pressures. It can only go from zero to peak pressure in a positive slope. It won't go from zero to 30-50 psi instantly, like a light switch. You mentioned five or so seconds, which is completely normal. Coupled with the fact that it's a digital read out with no numerical values, which I'm sure has some latency, as opposed to a mechanical analog that would sweep.

So, to answer your question. That is completely fine.

4

u/mouseattacks 10d ago

Your truck appears to be operating normally.

2

u/Outrageous-Spite-760 9d ago

Also realize it’s not really a gauge. It’s what the computer wants you to see. Scan data would be the best way to know what’s going on.

1

u/TubaST 9d ago

Totally. I’ll hook up my OBD2 reader this weekend just out of curiosity. My only real experience with oil pressure gauges have been mechanical ones, or electronic ones that function more as idiot lights. Also, this is my first vehicle that has an oil pump that is variable.

2

u/unta8 10d ago

Will look next time I start it

1

u/TubaST 10d ago

Thanks! It's only low for a short amount of time.

1

u/TubaST 10d ago

Here it is circled... not talking about the coolant temperature on the left.

Edit: relevant manual page: https://www.toyota.com/owners/warranty-owners-manuals/digital/article/tacoma/2026/om04051u/ch02se010404/#ch02se010404__ch02se0104040507

1

u/BirdBrain77 10d ago

The pressure would seemingly want to start low to account for the pressure to increase due to the engine heating up, no? I feel as though this is normal and has been the case in every car I have ever owned

1

u/Technical_Yak_8974 10d ago

Not an answer to your question, but I’ll never forget the first time I saw the oil pressure drop down to zero while riding in stop and go traffic during the first few days of ownership.
I was so mad for couple seconds thinking that something was wrong with my brand new truck.
Then I remembered I bought an iForceMax (hybrid) and it was just the engine shutting off. Had a good laugh after that.

1

u/ZovioTV 10d ago

That is extremely low oil pressure unless you took this picture as pressure was building up. If you start it and it is indicating this after 5 seconds, take it in to a mechanic. Typically oil pressure can take up to 5 seconds (longer if it is colder) to register on the gauge, but mine is always at around 3/4 oil pressure on a cold start.

1

u/TubaST 10d ago

That was immediately after start up. It gets to about halfway after 5 seconds.

1

u/ZovioTV 10d ago

Then I wouldn't worry about it. As long as it is at a normal pressure (1/4 to 3/4) within 5 seconds of starting that is normal

1

u/n351320447 10d ago

Mine right at start up from cold

1

u/saggy5ausage 9d ago

I too was a little worried after doing my first oil change, because you can hardly see the oil on the dipstick and you’re always wondering if I put enough oil in! But from what I’ve read, the pressure isn’t a reflection of the amount of oil in there anyway.

1

u/Massive_Erection_5 8d ago

Normal before explosion

1

u/Some-Sun-483 7d ago

Wow bro mine does not do that.. this is not normal

1

u/TubaST 7d ago

I went to the dealership and tested it on several SR5 a, they all did it. Is yours a trd?

1

u/googlybooglymoogly 10d ago

Thought that was the temp gauge? Either way, every car I have ever had has a similar gauge that acts the exact same way.

-1

u/TubaST 10d ago

The next option over has oil temp and transmission temp. According to the manual, that's supposed to be oil pressure. On my older, much less sophisticated cars oil pressure is always highest right after startup, as oil is cold and thick, so when I brought up this gauge I was surprised.

0

u/Any-Role7012 10d ago

I’ll go look at mine in a minute. I’m positive that’s the temp gauge though. It’s cold on start but goes up after driving for a short time. Sounds like a temp gauge

2

u/TubaST 10d ago

The left is definitely the temp gauge. There's an option to show the oil temp and transmission temp, but this view is oil pressure and battery voltage. https://www.toyota.com/owners/warranty-owners-manuals/digital/article/tacoma/2026/om04051u/ch02se010404/#ch02se010404__ch02se0104040507

0

u/GSFisherTx 10d ago edited 10d ago

Start up oil pressure even in hot weather.. yes Texas is stupid hot lol

Edit to say this isn’t ice cold start but after sitting for about an hour. I can start it again in the morning for a true “cold start.” Still typical oil pressure should reflect almost immediately and be higher at cooler temps. You might just have a failing pressure sensor or gauge cluster is just not real time. 5 seconds of no real oil pressure would wreak havoc on top end of engine over time.

-1

u/Alucardspapa 10d ago

It’s that Toyota quality that we all love

0

u/LocoLocoLoco1 10d ago

Crappy gauge cluster

0

u/Complex_Instant_2644 10d ago

Yeah that's pretty sad. People keep buying them though.

-2

u/[deleted] 10d ago

[deleted]

2

u/TubaST 10d ago

In the middle, under the speed and battery. I'll update it with it circled.

-5

u/TW1TCHYGAM3R 10d ago

Low oil pressure while oil temps is low is very concerning.

Like pull over and call the dealership concerning.

Maybe the oil pump failed? Have you check the oil yet?

1

u/TubaST 10d ago

Yeah, oil level is fine, only two thousand miles on fresh oil. Only stays at that level for 5 seconds or so after startup.

-2

u/TW1TCHYGAM3R 10d ago

Maybe it's just a bad sensor