Shudder

[BI1]

Hi

This morning I have started to get a "shudder", best word I can think to describe it, a bit more than a vibration but not a shake, coming form the engine through the peddle and body while accelerating but fine while holding a constant speed.

The only thing I can compare it to is when you have an out of balance wheel.

Can anyone offer any explanation as to why this might occur ?

Thanks

[BI1]

Bit more on this, having driven it a bit further the whole engine / body starts to shake when taken above 2000 revs even in neutral and it is getting worse.

[Guest]

Bit more on this, having driven it a bit further the whole engine / body starts to shake when taken above 2000 revs even in neutral and it is getting worse.

What does the engine sound like when it starts to shudder. Sounds like a misfire.

What sort of engine is it, 2.4, 3.0TD, 3.0V6.

Things you could look at.

1. Fuel Filter, may have picked up or passed through some junk from the tank - maybe blocked and injector.
2. Air filter - is it clean.
3. Vacuum Hoses, are all the hoses connected.
4. If it's a 2.4 does the turbo light come on above about 1600 - 1800 rpm.

If The engine seems to be running fine then it is something out of balance.

Check the drive belts and while you are at it check that all the pulleys are running true.

If it is a manual, it could be the clutch or Flywheel.

Could also be a broken engine mounting.

You probably need to do a little more description and testing of the problem to come up with a better suggestion.

Cheers and good luck.

[BI1]

It is a 3L D Auto, it does sound like a misfire, if it was a petrol I would be checking the spark plugs. I have recently changed all the filters.

I have not actually had time to lift the bonnet yet, I just got it to work and I have just called the RAC. I figured I pay the membership I may as well use them.

Cheers for the help I will let you know what the RAC say.

[BI1]

Turns out to be the injectors are nackered, probably due to bad servicing by the person who had it before me. Problem is they are not completely broken so will not be covered by warranty. More expense !!

[Guest]

Turns out to be the injectors are nackered, probably due to bad servicing by the person who had it before me. Problem is they are not completely broken so will not be covered by warranty. More expense !!

I think I'd argue that case, if an injector is not working properly then it isn't working full stop. Can cause all manner of engine problems if left un-dealt with. You may be able to get them rebuilt rather than getting new ones. A Diesel Specialist will be able to do it for a fraction of the price of new. Injectors are not that complicated, a spring, a nozzle, a needle valve and a couple of washers. Generally need a new spring and a good clean and polish of the other parts. Worst that can happen is that the needle valve gets a ridge on it that can't be polished out, it will stick then and it is basically unuseable without a new needle valve.

Cheers

[BI1]

I think the problem is that it is down to wear and tear rather than a catastrophic failure. These warranties are not really worth the paper they are writen on and I only have it as it came free when I bought the car. The injector bits are only £14 each, it is the 3 - 4 hours labour they want to charge which is the expensive bit.

[andy]

Turns out to be the injectors are nackered, probably due to bad servicing by the person who had it before me. Problem is they are not completely broken so will not be covered by warranty. More expense !!

I think the dealer is having you on, if the thing doesn't run properly then he should fix it with no charge, dont name them until it's been fixed and if they dont do it FOC then name them in the dealers section.

[BI1]

It's not the dealer they closed down (which means my so called free service and MOT for 2 years has disappeared). It is the RAC warranty I got with it. To be honest I have not had the final say on it yet, just warned by the mechanic what the expected answer will be.

[BI1]

The injectors have been done at a total cost of £200 and it has made no difference and they really don't know what the problem is. They are now about to take the fuel pump off but only as a guess. I am really starting to think this was a BAD buy.

Can anyone offer any other reason why it would start missing when it goes above 2000 revs ?

[andy]

Brian


Sounds bit of a mystery to me, you say in one post that it feels like a wheel wobble, and then someone say's it's the injectors so that gets ruled out, so have you checked all the steering and propshaft joints also engine and gearbox mountings.

PROFILE.
Another thing that you could do if you want to reveal it is to tell us where in the UK you live, you never know one of the guys on here may live close to you, and they might be willing to have a look, two heads might be better than one.

[BI1]

The engine is starting to miss above 2000 revs, this occurs even in neutral while stationery. This is what is coursing the engine to wobble. Below 2000 revs it runs well however.

The garage mechanic seems to think it might be to do with the fuel pump now so they are investigating that. If that is not it then I am really stuck.

I will let you know. I live in Portsmouth by the way, it is normally kept in Southampton however, the worst thing is I was supposed to be towing a trailer load of rowing boats to Wales this weekend for a race.

Brian

[BI1]

Turns out there was a problem with the fuel pump, costing £400 to fix plus all the labour to remove and replace. Does anyone know how much a new fuel pump would be ?

[NiftyNev]

Turns out there was a problem with the fuel pump, costing £400 to fix plus all the labour to remove and replace. Does anyone know how much a new fuel pump would be ?

Had my 2.4 pump completely rebuilt at a cost of $2700.00.I removed and reinstalled.Cheap compared to Toyota price of $5500.00 for a new one.

Neville

[Guest]

The engine is starting to miss above 2000 revs, this occurs even in neutral while stationery. This is what is coursing the engine to wobble. Below 2000 revs it runs well however.

The garage mechanic seems to think it might be to do with the fuel pump now so they are investigating that. If that is not it then I am really stuck.

I will let you know. I live in Portsmouth by the way, it is normally kept in Southampton however, the worst thing is I was supposed to be towing a trailer load of rowing boats to Wales this weekend for a race.

Brian

Couldn't they adjust the fuel flow, sounds like fuel starvation to me if it works at low revs.