2014 Prius v, 198K, vibration in drivetrain?

How’s your oil level? Ever done the egr circuit cleanse?

 

HV battery is past its prime and is not adding hp at low charge levels. It can cause the gas engine to ping and shutter but goes away when the battery is at a high charge. Other symptoms may include very quick discharge in stop and go traffic or even at a traffic light and reduced mileage from maybe 42 to perhaps 38 or lower. Dr Prius app can load test. Good news is a new Toyota battery may be had for $2000 installed and all will be good again.

 

They're probably catching your oil with one of these:

DIY is the best route. Dealerships are head-in-the-sand on this, and if you could get them on it it'd likely be very expensive and half-baked.

EGR & Intake Manifold Clean Results | PriusChat

Watch @NutzAboutBolts videos too, pinned at top of 3rd gen maintenance forum.

That hybrid battery may be ailing. It wouldn't hurt to check the fan (videos mentioned above). The dealership can do an in-depth check of it's heatlh with Techstream.

 

An atkinson cycle engine is pitiful at the low end and gives good mileage at the high end. The battery has to provide significant hp at low speeds. You have probably never experienced the minimal power with a really discharged hv battery. I did once in my 08 after it drove two miles at 60 mph with an empty tank! Dr Prius will work on Android. You do need a wifi obd2 which is fairly cheap on Amazon and the app recommends models that work. The app is free but the load test is ~$12. I give it 95% your HV battery is gone. Dorman sells a cheaper new cell refurbished but I would not go for mix and match old cell refurb.

 

before you go ordering a new battery I would suggest picking the low hanging fruit or so to speak. Try a basic tune up, these shouldn't cost too much at a mechanic if you can't DIY.

-New spark plugs
-run a bottle of fuel injector cleaner with premium gas through
-inspect all engine mounts, exhaust hangers, and exhaust connections
-clean MAF sensor
-new engine air filter

Even if your battery is going out, the engine should not be vibrating strangely at hi load. If the battery can't supply enough the engine should spin up to higher RPM.

 

Torque Dampner?

 

This is the OBD2 wifi reader I use with the Dr Prius app to load test the battery

 

Take a look at your exhaust heat shields. They flex in sympathy with engine RPM, and when they become loose, create audible/tactile vibration.

 

Had this issue until I had the dealer apply the software update the latest recall was about.

Posted via the PriusChat mobile app.

 

I am seeing this vibration issue as well, under pretty much the same scenarios. There is a shudder, that to me feels like driving a manual, and having it want to stall out in first gear because you are not giving it enough gas. The problem is only sometimes, when gas engine is in use only.

My recently purchased 12 Pv has 192K, and I am just starting to look into what maintenance I can do, without laying out a lot of money. This weekend I plan to replace the spark plugs, and clean the EGR valve.

Any otter recommendation?

 

With the EGR, start by checking the pipe, a stainless steel bit that runs between the EGR valve and intake manifold. It is relatively easy to access and remove, and it's condition will give you some idea what the rest is is like. Watch @NutzAboutBolts Video #16 here:

Nutz About Bolts Prius Maintenance Videos | PriusChat

 

Awesome vid, thanks for the tip!

 

Hello I'm new member from Finland,

I have Toyota auris hybrid 2016 (mileage around 145000mi, 234000km). It use same technic as prius gen 3 I think, (motor is 2ZR-FXE and transmission is P410). I have pretty much same kind of problem with my car. Vibration any speed and mostly low throttle. Did you solve this problem?

I have checked: -Wheel bearings, -EGR pipe(also clean it), -changed all tires to new ones, No "check engine" or dashboard lights, also read fault codes by scangauge 2 (nothing found), Transmission oil changed 5000 miles and spark plugs 30000 miles ago at toyota service (before that vibration problem occurred).

Any ideas?

-Jarmo

 

Just the connecting pipe between the EGR valve and intake manifold, not the complete EGR and intake manifold yet? How did the pipe look, how much carbon?

 

I don’t think so much, this was first cleaning. Please look at the photos

 

Judging from miles and the pipe, mostly from the miles, I would clean it.Maybe do the intake manifold first, simply because it's easier. With those miles you might want to order replacement gaskets. For the intake manifold pay special attention to the small EGR passages, one per port. Note too: it is NOT necessary to disconnect throttle body coolant hoses; you can just lift the throttle body off the intake manifold and tie it off, out of the way.

A link for gasket part numbers:

Engine Parts for 2010 Toyota Prius | McGeorge Toyota Parts

Some more info:

The simplest way to see where you're at, is to check the degree of carbon build up in the EGR pipe, a stainless steel connecting pipe between the EGR valve and intake manifold. Watch @NutzAboutBolts video #16 here:

Nutz About Bolts Prius Maintenance Videos | PriusChat

Two or three other videos linked there too, for the full cleaning of the intake manifold, full EGR clean, and Oil Catch Can install.

Good thread:

EGR & Intake Manifold Clean Results | PriusChat

Another:

Oil Catch Can, Eliminate that knock! | PriusChat

Somewhat tools worth having:

E8 Torx socket (mandatory)
E6 Torx socket (optional, but good to have, to remove the throttle body studs from intake manifold)
3/8" ratchet wrench, regular and long handle, flex head, you can never have enough
1/4" ratchet wrench, or 3/8" to 1/4" reducer
Ratchet extensions: you can never have enough
Long needle nose piers, straight and bent tip
Ratcheting 12mm box wrench (optional, but makes disconnection of the EGR cooler from exhaust easier)
Torque wrench (3/8" and 1/4" both good to have)
Floor jack and safety stands (or ramps): basically some method to raise front, if you need to take underpanel off, which you may need to, both for access and to recover dropped items.

 

Thanks,
Do you think that clogged egr could gause vibration?
I didn’t get any fault codes by scangauge II and motor rpm stayed stabil During vibration... Anyway it could be time to clean complete egr system..
-Jarmo