Attention’22 6mt Owners

I posted before under “new truck engine miss”. Spent 3 trips and an hour long ride with Toyota “expert”. Truck stutters under slight load between 1500 and 2600 RPM. Worse pulling trailer. Apparently not a misfire. Scope shows nothing no codes. First he denied feeling it. (As we both jiggle in the seat) Then he said it was road turbulence. Then “stay outta that RPM range”. WTF? He came to the conclusion it is a torque issue with the angle of the rear diff. Does ANYBODY have ANYTHING like this issue with MT truck?

 

That doesn't sound normal. It should be smooth all the way through the rev range.

 

This sounds similar to a buddies trd auto, when at low 1400 rpm or so the truck had a bucking sensation like you were lugging it. Dealer told him that was normal for that trim. Imo, its total dealer bs, as I agree with the post above...operation should be smooth no matter what rpm.

 

I have that low rpm lugging sensation if just cruising since day 1. If I give it gas for the AT to downshift so I can go through the rpm then its all smooth. I just figured with these trucks and all of threads I've been reading on TW that its just the way it is. I can live with it and rather not go nit picking it at the dealer as they might screw something else up or make it worse. It doesn't seem to do it all the time but it sure does and was one of the first things I noticed.

 

I would guess it’s more noticeable in MT truck cause of gear to gear instead of
“Fluid” to gear.

 

I’ve got a 2022 6MT. TRD Off Road with 18k miles. Haven’t had any experiences similar to what you’re describing.

Previously had a 3rd gen automatic and the manual doesn’t have any stutter compared to automatic. Sounds like an issue with your truck.

 

Yeah I’m thinkin they hope I just forget about it. Told me to disconnect rear driveshaft, and see if it still does it with just FWD. What do yinz think about that? And….why should I have to do that? First issue I have had with Toyota over 21 years of ownership. Truck has done it since new. Now has 10K.

 

Drop a gear and gouge on it. Or get a sprint booster or pedal comander, mine did it. Not now after sprint booster. Some say get a k something tune or whatever it's called. Not sure if it's worth it on MT 6.

 

<2000 rpm you can easily bog the engine down. Especially if you are trying to tow. It doesn’t make much power until you get over 2500 rpm.

tuning helps significantly.

 

I have a 2022 6MT Sport and have not experienced any such issues; it is hilly here in New Hampshire, so while I haven't towed with my truck yet, I do climb LOTS of hills and typically try to keep my RPMs > 2,000 when in higher gears under load (i.e. climbing). However, like I started with, even on the rare occasion when I lug the engine with a low RPM / high load combination, I do not experience any missing/stuttering.

Regarding the comment about removing the rear drive shaft, as my English friends would say, "that's a load of bollocks".

 

Guys. It does it through that RPM range even slow accelerating it’s not bog. Can’t notice in 1st but noticeable on up. Even cruising. 2600 is roughly 72 MPH freeway.Kinda hard to drop a gear at that point. Aye? PA Going north from Pittsburgh suburb almost every weekend. Lotsa hills.

 

Check transmission fluid level?

 

Nope. 6 speed ???

 

A new ginger??!!

Sorry op, inside joke.. sigh.

 

Yinzer. Yup!

 

'22 6mt off road package here.

Yep, 1500-2500rpm I can get weird "pseudo-misfire-lugging" very consistently. Have checked over the u-joints, center carrier bearing, all suspension and driveline hardware repeatedly. Pulled my spark plugs a few weekends ago, all were fine, consistent coloring, wear and gap, nothing to indicate one or more is not sparking/firing/fouling.

Edit- Another Yinzer! A man of quality!

Yeah, same issue with the hills. Even with just me and no passengers or anything in the bed, it doesn't want to get out of its own way even dropping all the way down into 3rd at 70.

 

^This

'21 MT here.

I suspect I've seen this symptom at low RPM - BUT with more than a minimal load (i.e. climbing a nice steep hill after a sharp turn having me start out the climb in the 1500-2000 RPM range in 2nd gear.).

These engines do wonders in terms of fuel management in order to avoid knock. This does not mean they are making torque efficiently, or that they are in their optimal operating range. - They are lugging...

At least in my case, My theory is that if it wasn't for the fuel management magic; I would have had knock for sure under such conditions. More RPM are needed for proper operation.

My solution has been to push-up my habitual RPMs is such situations getting to a more efficient point in the power band.

More fuel helps with the above - but I prefer to get into a more suitable RPM range and into a better point in the engine's power band.

 

Well there ya have it! I’m actually thinkin about yankin that rear shaft off just for shits and giggles. Again that’s what the Toyota Super Rep said it was. Differential torque. Id really like to prove the guy wrong. But, I’d really like to know what it is.

 

Sounds like they should be the ones to pull the rear driveshaft and go for another test drive with you. Did they give any specifics about driveline or pinion angles?

 

I dunno. I can’t see me driving 55 in what ? 4th gear to stay outta that engine speed. If others speak up that theirs does it , I guess I’m good. Not happy but so be it. “IF” anybody comes up with a reason that isn’t obvious t just a grab bag of maybies, please let me know