2l Corolla engine judder

[trashman1965]

57 minutes ago, SV1991 said:

So around 1900 - 2000 rpm regardless the speed, I can hear the engine, it’s like a deep vibration and the engine is noisier as soon as I go higher in the rpm the noise disappears. Is this what you experienced before changing the injectors? That is really anything I can feel different, definitely the engine doesn’t sound like in the video posted earlier.

Yes, this was one of the symptoms.

[taxidriver50005]

My dealer told me last week he had another 2 rav 4 come in for repeat injectors... Defo not just corolla 😳   but still only isolated cases and no pattern as of what is causing it. Odd I've not seen ant ch-r reporting this issue but have seen odd lexus with problems. 

[ThomasL]

Every time Toyota give the "it's the poor quality fuel" excuse I expect an imminent announcement that all dynamic force engines will be taken off sale and recalled in GB as they've obviously not been designed to be used with the fuel made available to us (unlike every other manufacturer that doesn't seem to complain about the fuel...)

 

[taxidriver50005]

Here's a though all of the cars I've seen with injector issues have been ts models.... Any normal hatch car had problems yet? 

[trashman1965]

Mine is a hatch

[taxidriver50005]

If it is water causing corrosion I wonder if there is any other way it could be entering the fuel as I don't see it just being E10. 

Maybe we have leaky filler tube spout... I clean my car a lot... Somtimes twice a day... The other 2 corolla I know of with issues do the same.. Could water be entering the tank somewhere 

[yossarian247]

3 hours ago, taxidriver50005 said:

If it is water causing corrosion I wonder if there is any other way it could be entering the fuel as I don't see it just being E10. 

Maybe we have leaky filler tube spout... I clean my car a lot... Somtimes twice a day... The other 2 corolla I know of with issues do the same.. Could water be entering the tank somewhere 

EVAP emission systems usually closely monitor the pressure/vacuum in the fuel tank, so if there was leak like that I think you'd have the MIL on and a fault code stored.

[Cip Culea]

On 9/6/2024 at 7:24 PM, TonyHSD said:

You can try to record the noise and share. Some of us most likely know already what it is but before we hear the noise we can’t say for sure. 
It’s a known issue with 2.0 engines from these years, and it is not normal and also can lead to damage and expensive repair in the future.

 

 

I know it’s not even close as the one in that video, but you can hear the engine “whining” in the background. I did use a engine cleaner and Shell V Power, at first it felt like another car, but now as the petrol is going down, the engine feels really course, loud and the ev it’s almost inexistent on longer journeys. 

[taxidriver50005]

2 hours ago, yossarian247 said:

EVAP emission systems usually closely monitor the pressure/vacuum in the fuel tank, so if there was leak like that I think you'd have the MIL on and a fault code stored.

I have noticed there is zero vacuum or pressure in the tank when removing filler cap, checked with friends lexus... 2.5 dynamic force motor which has also had injectors and zero pressure in that too but wife's chr 1.8 has a vacuum when removing cap. 

[Cyker]

If you're only doing partial fills it might just have less vacuum, or if you don't drive so much it might have more time to equalize...?

[trashman1965]

4 hours ago, Cip Culea said:

 

IMG_9803.mov 43.57 MB · 7 downloads  

I know it’s not even close as the one in that video, but you can hear the engine “whining” in the background. I did use a engine cleaner and Shell V Power, at first it felt like another car, but now as the petrol is going down, the engine feels really course, loud and the ev it’s almost inexistent on longer journeys. 

Hard to tell if there is a misfire there. You could try running with the bonnet open if the engine is wobbling about and sounds uneven, then you have a misfire. Later days vpower actually made mine run rougher and sound worse. Using BP 95 actually made it better. Guessing lower octane meant it was running with less ignition advance and /or slightly richer helping mask the issue.

[taxidriver50005]

15 hours ago, Cyker said:

If you're only doing partial fills it might just have less vacuum, or if you don't drive so much it might have more time to equalize...?

Drive a lot 220 miles a day average and fill from about a quarter to full every time

[Cyker]

Probably not that then!  

[TonyHSD]

This last video shows no issues with engine running .

[Cip Culea]

It’s not very obvious in this video, but while driving it, the engine doesn’t feel right, really rough, no power, it’s reving way too much and stays high for too long.

[TonyHSD]

10 hours ago, Cip Culea said:

It’s not very obvious in this video, but while driving it, the engine doesn’t feel right, really rough, no power, it’s reving way too much and stays high for too long.

This is how Toyota hybrids works. 
eCVT transmission has no gears and depending on engine load , Battery charge and road conditions the engine may sound different, feel rough and less powerful, but all that are typical things and very normal. 
If the engine is knocking like on the video I have shared then you have problems, no warnings ⚠️ On dashboard,  no problems. 
All these typical sounds and noises seems very unusual for the first time hybrid drivers but these are part of the hybrid experience. 

[yossarian247]

On 10/1/2024 at 7:47 PM, taxidriver50005 said:

I have noticed there is zero vacuum or pressure in the tank when removing filler cap, checked with friends lexus... 2.5 dynamic force motor which has also had injectors and zero pressure in that too but wife's chr 1.8 has a vacuum when removing cap. 

I'd never paid any attention to this before, but when I filled up the Corolla 2.0 TS today I specifically listened when removing the cap. There was a very definite 'hiss' when opening the cap on mine. It has nearly 50k on the clock and still all of its original injectors, so perhaps you're onto something?!

[trashman1965]

I get a hiss on mine and have had injector issues.

[TonyHSD]

Hiss on opening fuel cap will vary depending on conditions car been used like temperature change, how much fuel is left in the tank , how long you have drive the car before you stopped for refuelling. There is no direct relation to the injectors issues on 2.0 engines.
The problem you are getting is from the quality of fuel here in uk, and by quality I mean not the quantity of ethanol but the water and other additives inside. My car does these knocking noises and misfire when been seating for a while without use. Two day ago I started it after 10 days of inactivity and as usual there were noises which disappeared when pressed the accelerator to rise rpm , there was also a definite smell of raw petrol from exhaust which points towards extra fuel in the combustion. Apart from these from time to time the engine still runs really well. 👌 

[TonyHSD]

https://apple.news/A5h1EouCaQQ-jUq1cyFD3bQ

Water in the fuel. 

[Cyker]

Good grief Morrisons again? Methinks I'll have to avoid going to their pumps! (Not that I go there with any regularity anyway...!)

Not a good look for MFG either; Their reputation isn't great to begin with...!

The article is a bit confusing though - It suggests this is an issue of water contamination in petrol, but then talks about 'diesel' bugs, which just aren't a thing with petrol (Petrol is too toxic for bacteria to grow in it!)

[Rhymes with Paris]

23 minutes ago, Cyker said:

which just aren't a thing with petrol (Petrol is too toxic for bacteria to grow in it!)

What about Patagonian Petrol Worms 🐛.

They are known to survive in up to 89 octane petrol, so may well be thriving in watered down petrol here.

😉

[Cip Culea]

On 10/1/2024 at 10:20 PM, trashman1965 said:

Hard to tell if there is a misfire there. You could try running with the bonnet open if the engine is wobbling about and sounds uneven, then you have a misfire. Later days vpower actually made mine run rougher and sound worse. Using BP 95 actually made it better. Guessing lower octane meant it was running with less ignition advance and /or slightly richer helping mask the issue.

Hi, just took a video before leaving work and the engine sounded like that. 

 

 

[trashman1965]

The loud buzzing/clicking is likely the high pressure fuel pump. They are very noisy and that's normal.

Not sure if a glitch, but near the end clear interruption in sound. If it was a misfire, it wasn't obvious with engine vibration. The engine looks solid/stable throughout the clip - when it's misfiring it does wobble about on the mountings so yours seems ok.

If the engine sound is constant and regular, then you don't have an issue.

[TonyHSD]

20 hours ago, Cip Culea said:

Hi, just took a video before leaving work and the engine sounded like that. 

 

This engine sounds ok, no issue at all.