Short ticking noise on cold start

[Trickster]

Omg, another oil thread.?
3.6 short tick at cold start is nothing compared to the 5.7 “Hemi tick”.

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[MrZappo]

Surefire way to cure the minimal tick on startup is earplugs. Or ignore it.

As far as the oil argument. Use clean oil. Changed on time.

I bet you will never have a problem.

 

[Atticus]

It is the old 3.6 tick

And they have know about it a while

 

[stuckindeep]

What would your theory be on why 5w-30 should be used instead of 0w-20 to prevent the startup tick? Considering 0w-20 is the factory spec, could this cause issues if there were subsequent failures which should be covered by warranty?

You are on the right track; I went to school in the Military for Oil Analyss. Back in the early 90s dodge rams were having issues with engine failure and customers were finding metal flakes in their oil. the MFG for oil was 10w30. Well owners thought they knew best and were using 20w50 oil. Contrary to popular belief it is not. When dealers found out they were using the wrong oil they would not replace the engines. This gave Ram and Dodge a bad name and sales suffered. Owners are their worst enemy. The bearing tolerances were designed for 10w30 oil not 20w50 oil. On start-up the 20w50 oil could not get between the bearing surfaces and there was metal to metal contact. As modern engines have developed the bearing tolerances have gotten smaller hence the use of 0w20 oil. It is all about the viscosity design of the oil in relation to bearing tolerances (the state of being thick, sticky, and semifluid in consistency, due to internal friction). The moral is owners are just not as smart as they think they are. So thinner is better not thicker in modern engines.

 

[Gee Man]

If it is only at startup, and goes away in a couple minutes, I would not worry about it. Mention it to the dealer when you get the oil changed, or sooner if it gets worse.

Thin oil 0-20 was introduced due to the government requirements for fuel economy, 0-20 was the automobile manufactures answer to helping jeep show they were improving their fuel MPG. and decreasing air population HAHA maybe.03 increase. But it made the EPA happy.

 

[Gee Man]

It is the old 3.6 tick

And they have know about it a while

I and so glad I have a 2024 Gladiator Rubicon X

 

[Hootbro]

I and so glad I have a 2024 Gladiator Rubicon X

There is nothing to suggest anything has been fixed to address or mitigate the issue even with recent production vehicles.

 

[Volt0]

Any way to prime the oil pressure in these gladi’s then?

 

[Hootbro]

Any way to prime the oil pressure in these gladi’s then?

Besides doing a clear flood mode start of hold down the brake and gas pedal when pushing the start button, not really another true prime method.

You could install a Baxter Performance Oil Filter adapter that retains the oil from draining overnight out of the oil cool and oil filter housing assembly that helps mitigate startup rattle, but it is not a true full prime.

Unless the vehicle has sat for an extend period of time, there should be sufficient oil film retained for subsequent startups and the 3.5 to 4 seconds for full oil pressure to build.

 

[JTGuy]

Use a good oil and change it before 5K miles.

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