Avensis problem

ofcork

Ok after owning my 04 avensis for over 5 years,it is giving me a problem after 5 trouble free years.Was driving on saturday and changing up from 4th to 5th and the car wouldnt accelerate,had to change down and then up again did the same going from 2nd to 3rd later but the rest of the time it seems fine its 1.6 petrol with 144k miles.

colm_mcm

Just to be clear, is the engine revving up but the car doesn't speed up (clutch)
Or is the engine just refusing to move the car properly?

ofcork

The engine is refusing to move the car.

ofcork

From googling it seems to be the cat is gone as i have the same symptoms,any ideas as to cost thanks.

colm_mcm

Over €700 for a new one, I'd chance one from a scrappy.

I'd be checking the engine for reasons that the cat failed too.

ofcork

Got quoted 800 from a main dealer previously inc. fitting,thought that was ott.

colm_mcm

Its not too far off, you could try an exhaust centre and see.

bazz26

OP, have you had the problem properly diagnosed? I'd do that before going off replacing parts.

ofcork

A couple of places have said before that it is the cat,getting it checked tomorrow again.

meoklmrk91

I would be getting it checked to find put why the cat failed in the first place, no point in spending money on a replacment, and in fairness it's a lot of money, for it to go again.

HellFireClub

I'd get it properly diagnosed first...

(1) Get mechanic to test drive vehicle...

(2) If it isn't the clutch slipping, (which is sounds more like to me given your description of the problem), then it needs to be plugged in to diagnostic equipment to see if there are any repeat fault codes being generated by the ECU, which may or may not point towards the cat...

ofcork

Thanks guys hopefully will get it sorted without a big outlay,i suppose i cant complain after over 5 years trouble free.

HellFireClub

ofcork wrote: »

Thanks guys hopefully will get it sorted without a big outlay,i suppose i cant complain after over 5 years trouble free.

Not having a go here, but if I could outlaw one thing in this country, it would be people being allowed to say, "I Googled it and it's a common problem with my car"... There are so many things this could be, best advice is always get the problem professionally diagnosed by a reputable garage that you trust, especially when the costs are as high as "Google" are suggesting here...

AzureAuto

HellFireClub wrote: »

There are so many things this could be, best advice is always get the problem professionally diagnosed by a reputable garage that you trust, especially when the costs are as high as "Google" are suggesting here...

Agreed, have a competent mechanic hook up a diagnostic machine with live data graphing facility and get a) any fault codes logged and b) test driven while coparing readings from pre and post O2 sensors. If the waveform for the pre CAT sensor is the same or very similar to the post O2 sensor output then, yes you have problems with your CAT. If it looks like a steadyish voltage then the CAT is doing its job. The reason i say this is that of all components that could possibly be at fault, the CAT is by far the most expensive, and it would be a pity to fork out that sort of money if it was, for example, simply a perished vacuum hose putting car into a limp home mode.
Just my 2 cents worth.