2004 2.0 D4d T4 Vibrating Clutch Pedal

[Tedina]

Hi, I hope someone may be able to advise.

Have recently bought a 2004 D4D T4 Avenis from main Toyota dealer. When city driving (involving frequent gear changing and clutch pedal work) a vibration/resonance can be felt through the clutch pedal.

This vibration exists at all revs, in any gear, including when idle. It is most noticeable when resting your foot on the pedal in readiness for a gear change.

The performance of the car appears to be unaffected though, gear changes are smooth (apart from the usual diesel gear box clunk), and I cant make out any unusual noises (although I'm no expert).

I took it back to main dealer who said this resonance is normal for a diesel and not to worry, they added "its not as bad as some can be".

While the reassurance was welcome, I still find this vibration through my foot annoying and cant help wonder that there may be a fault, which at the moment isn't affecting performance but may do so in the near future.

So, has anyone heard about or experienced similar symtoms to this? I have read some previous posts with similar symtoms but they appear to be linked with other symtoms and more serious issues, which my car doesn't have (at the moment).

Is the main dealer correct? Or is there a nasty surprise further down the road for me?

Any response much appreciated.

Jim

[kingkillie]

Hello,

Who knows what's down the road.

As far as the vibration goes I would say it is absolutely normal. You probably feel the vibration of the engine.

p.s.

Don't rest your foot on the clutch----------you're wearing it out!

[JohnYossarian]

Hi, I hope someone may be able to advise.

Have recently bought a 2004 D4D T4 Avenis from main Toyota dealer. When city driving (involving frequent gear changing and clutch pedal work) a vibration/resonance can be felt through the clutch pedal.

This vibration exists at all revs, in any gear, including when idle. It is most noticeable when resting your foot on the pedal in readiness for a gear change.

The performance of the car appears to be unaffected though, gear changes are smooth (apart from the usual diesel gear box clunk), and I cant make out any unusual noises (although I'm no expert).

I took it back to main dealer who said this resonance is normal for a diesel and not to worry, they added "its not as bad as some can be".

While the reassurance was welcome, I still find this vibration through my foot annoying and cant help wonder that there may be a fault, which at the moment isn't affecting performance but may do so in the near future.

So, has anyone heard about or experienced similar symtoms to this? I have read some previous posts with similar symtoms but they appear to be linked with other symtoms and more serious issues, which my car doesn't have (at the moment).

Is the main dealer correct? Or is there a nasty surprise further down the road for me?

Any response much appreciated.

Jim

Hi,

Welcome to the Forum!

If you run a search with clutch problem and/or vibration you will come across a recent long thread on the same subject. It was a couple of months ago so you will find enough info.

Cheers,

John

[Tedina]

Thanks for your response Guys, much appreciated.

I suppose what I'm really after is for any other 2004 2.0 D4D owners out there to tell me that a vibrating clutch pedal is not normal so I can bang the counter at the service desk and say you're fobbing me off.

My last car (Peugeot 306 1.9D) did 163000 miles (all done by me) on the same clutch, with no hint of vibration through the pedal, so I find this vibration a bit odd. The avensis is under warranty so if there are issues I would like to have them dealt with them within the warranty period.

If other owners can confirm this is normal then fair enough, I will live with it.

Otherwise the car seems to be performing as it should.

Thanks

Jim

[cmia]

Its not normal,

fault is possibly

1- flywheel (dual mass)

2- engine / gearbox mount.

3- clutch.

Speak to toyota now.

(search under my name for threads posted, i recently helped a member fix his d4d)

[Tedina]

Thanks cmia, I have looked back on previous postings, it certainly looks like a repeat of others problems.

I'm being fobbed off by Toyota which is really annoying as you deal with a main dealer for piece of mind and their 'Quality Assured' vehicles. All I've got so far is a whole load of hassle, poor customer service, and most probably a big repair bill around the corner.

I will take it to another dealership and see what they have to say. They may come up with a different answer which I can take back to the dealer I bought the car from.

I'll keep you posted.

Jim

[cmia]

Tell them to look at the know issue with the Dual mass flywheel casuing vibration faults.

Dont back down, speak to the service manager.

THe actual vibration is cause by the dualmass flywheel which has started to fall apart..

eventually it will become a knocking noise.. and wil cost u a hefty bill.

[Tedina]

Thanks cmia, I have now had the car back from Toyota and they agree its the flywheel. I bought the car from them 3 weeks ago so I'm not impressed that they sold it to me with a fault of this magnitude, especially as they push 'quality assured by an independant assessor' in their sales speech.

Hopefully there are no knock on effects to other areas of the car because of this fault. My main concern was the clutch vibration, and I focused on dealing with that, but as they had the car I hit them with other questions I had (possible Turbo lag, engine flat spot at 2k revs, vibration in steering wheel). These faults don't happen very often, mainly when the car is cold, but they're there all the same. Toyota reckon once the flywheel is changed these other questions may disappear. Time will tell.

I will keep you posted, car is booked in for 03/04/08, but for now, thank you for the sound advice. It helped a lot with a point to argue which I wouldn't have had before, and I'm sure it helped with Toyota agreeing to the repair under warranty.

Keep up the good work!

Jim

[cmia]

You have diffrent issues here

I doubt it you have issues with any other mechanical side of the car/

1 - flat spot = maf sensor which needs to be cleaned. (its a sensor in the air box)

2- Vibration via the steering wheel, may go away becuase ... of a bad flywheel. OR else it would be a varity of things, including tracking, balancing.

But make sure, when you car goes in.. they REPLACE it with a FLYWHEEL kit.

This includes

flywheel

clutch

pressure plate

release bearing

and some bolts.

good luck.

[Tedina]

Thanks cmia, I will put the maf sensor to them. It occurs mainly with a cold engine – when accelerating from low rev’s to high rev’s engine stops pulling momentarily (a second or two) and then picks up again with pulling power and continues on with rev’s. Mostly noticeable when in 3rd gear. When engine warms up it isn't noticeable.

The steering vibration is a strange one, does not occur everytime, very hit and miss, sometimes it happens, sometimes it doesn’t. If it does happen its immediately after starting the engine and when slowly driving forward, at idle speed, in 1st gear, or short coasting to a stop, a very short, intense, vibration comes through the steering wheel. This vibration can persist at approx 2-3 second intervals for less than a ½ second duration each time. This disappears when you increase revs and speed. (first came to light in a supermarket car park when driving very slowly, and has also happened on my drive (about 15 foot long) when leaving for work in the morning ). I suppose once the flywheel is repaired I'll see how it is then, but i find it very peculiar that it happens so randomly. Toyota couldn't find it yesterday, I did explain its hit and miss, and only when first starting off from cold.

I'll watch out for the Flywheel kit.

Thank you again for all of this sound advice.

Jim

[cmia]

If the flywheel is bad..

In your case it is..

then on cold start.. it will cause the engine to vibrate more.