engine pinging?? 2015 DCSB w/ 40k miles

Howdy folks.

I'm having this issue that I thought was resolved but it's back! This all started about a week ago. I'm getting this rattling/pinging noise whenever I moderately step on the gas at around 30-40 MPH. Can't for the life figure it out... I finally caved in and took it to the dealership for them to inspect. They said the engine was just fine, and that my splash guards were loose so they tightened it free of charge. Of course that didn't fix the problem, and that was enough dealership bullshit of the day for me.

I also uploaded a video to help you guys hear it better. Sorry I had it pointed directly at the floor board cause I tried to get it as close to the engine bay as possible while driving. If you listen closely, when I begin to accelerate, you start hearing a rattle, and then I let go of the pedal and there's no more noise. Hopefully someone can help me out.

https://youtu.be/8CiZbRZwoGs

 

Yep, that’s pinging. Mine does it too if I run regular fuel in it. Try a tank of premium and see if it goes away. I just run premium all the time, but I think there is a TSB for it. I think the TSB is a reflash that retards the engine timing to prevent the pinging

 

Yeah i've been reading the forums and I'm going to try that on my next stop at the gas station. Also from what I hear, because of the recent floods in Houston, that the gas storages have been tampered with flood water, but I dont know how true that is. I also took it to the dealership and mentioned the TSB, but I was also reading into it, and it's only done on 12-14 models. 15 is excluded because apparently the put a new program in it.

 

The issue is indeed excessive engine timing upon acceleration. The OE tuning is pretty garbage honestly, and there are a lot of "hardware issues" which further exacerbate the OE tuning.

If you are willing to cough up some coin and get things done RIGHT and catered towards your driving style, I would suggest picking up an HPTuner MPVI2 module and hooking up with @JustDSM for a custom NA base tune. If you want more info, feel free to message me. I can point you in the right direction on where to go from there.

 

Thanks for the information. I'll definitely let you know once I make a decision.

 

I just want to give an update on this. I tried 89 octane and the pinging was just as loud as using regular 87. I tried 93 and the pinging is practically gone and I'm really happy that resolved the issue! But now does this mean I can only use 93 octane?

 

In essence, yes. Because pinging is bad, mkay?
You’ll also net slightly better MPG to offset some of the cost . And if you math it out maybe 87 and an octane booster will work also and be cheaper.

 

A build up of deposits in the combustion chamber can increase compression enough to cause this if the vehicle was desigend for lower octane. Run a couple tanks of 93 with some sort of FI/valve/fuel cleaner in it.

 

My 14' had some pinging and I too researched the issue at that time. I found it odd that the 2015's still had some instances of pinging and no TSB solution for it. Perhaps Toyota was moving on already to the 3rd Gens. I 2nd the HPTuners route if you're looking for help with this. Just keep in mind you'll want to pick up another ECU as a backup just in case your ECU bricks.

FWIW, the TSB didn't completely eliminate the pinging for me, but it did help a lot.

 

I would try mid-grade first and see if it goes away. You might not need premium.

 

Well I tried the 89 which was the mid-grade, but I still had pinging that was just as loud as regular 87.

But thanks for all the advice everyone! Luckily, gas isn't too expensive in Texas so I think I'll just keep running 93. I was in California a couple months ago and the room started spinning when I saw the gas prices.

 

There should be a TSB for the 13-15 trucks to address this issue. I had the same issue on my 2013 and my solution was to supercharge it since i was already having to run premium. Best decision i ever made

 

Lol, first the solution was HPTuners and now it’s a supercharger.

 

Sounds to me like the real solution is BOTH

 

Its fromt 12-14 because apparently they put in a new system in the 15's, so there is no TSB for it. Feels really bad.

 

Yeah i wouldnt like that either.. sounds like HP would be a good solution for a custom tune that you can have refined for YOUR truck. That's the route i'd go if i were in your shoes..

 

You know how these diehard supercharger dudes are @hx989 the answer to all issues is to supercharge it to them.

They are like a cult I swear.

 

Probably not.... most octane boosters do maybe 8-10 Points.... thats 8/10ths to 10/10ths of a full number.... so 87 would become 87.8-88 octane.

2015 trucks did not have a TSB needed as the "TSB Tune" was put onto the ecu's from the factory.

 

My 13 pings at times with 87, started using 89 and it's gone, seems to run better also.

I asked my dealer a while back about the flash, was told in time it will return to what it is now, so I passed.