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Toyota Avensis D4d Egr Valve


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#1 marco polo

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Posted 31 May 2009 - 10:16 AM

what causes it to get sooty and clogged to prevent it happening again what precautions do you take if the valve needs replacing does that mean that the d-cat in exhaust is damaged also

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#2 cmia

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Posted 31 May 2009 - 01:02 PM

The valve has two parts
mechanical
and
Electric Sensor


Carbon build up, occurs with age of car and over fueling

Areyou having problems ?

#3 igormus

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Posted 01 June 2009 - 06:06 AM

what causes it to get sooty and clogged to prevent it happening again what precautions do you take if the valve needs replacing does that mean that the d-cat in exhaust is damaged also


hello mate
there're several main reasons :
- poor injection;
- overloading;
- T/C performance;
- injection timing;
- air filter clogging;
- violation of EGR valve maintenance schedule.
cheers/Igor

#4 marco polo

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Posted 01 June 2009 - 04:18 PM

thanks guys for your replys i have had the car serviced by geniune dealers since new its a 2008 model d4d 6 speed manual its been ticking over iregular since about 75 000 kilometer theres 95 000 on her now still under waranty the dealers told me that it was the egr valve but when they serviced it at 75 000 said nothing to me about it then only when i approached them on 95 000 kilometers about the iregular tickover and black smoke from exhaust

#5 igormus

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Posted 01 June 2009 - 04:43 PM

thanks guys for your replys i have had the car serviced by geniune dealers since new its a 2008 model d4d 6 speed manual its been ticking over iregular since about 75 000 kilometer theres 95 000 on her now still under waranty the dealers told me that it was the egr valve but when they serviced it at 75 000 said nothing to me about it then only when i approached them on 95 000 kilometers about the iregular tickover and black smoke from exhaust


ok then cured
pay attention on service intervals
good luck
Igor :thumbsup:

#6 marco polo

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Posted 01 June 2009 - 04:45 PM

thanks for your help igor

#7 davegooner7

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Posted 02 June 2009 - 05:30 PM

what causes it to get sooty and clogged to prevent it happening again what precautions do you take if the valve needs replacing does that mean that the d-cat in exhaust is damaged also

the egr valve is easy to clean using carb cleaner just clean it at every service

dave

#8 marco polo

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Posted 02 June 2009 - 09:05 PM

what causes it to get sooty and clogged to prevent it happening again what precautions do you take if the valve needs replacing does that mean that the d-cat in exhaust is damaged also

the egr valve is easy to clean using carb cleaner just clean it at every service

dave

is it the same as spraying down the throttle body like on a petrol car or do you need to take it apart and clean it

#9 marco polo

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Posted 02 June 2009 - 09:09 PM

is it the same as spraying carb cleaner into the throtlle body like on a petrol car or do you need to dismantle anything what is the procedure cheers

#10 marco polo

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Posted 03 June 2009 - 12:56 PM

lads just got it back from the dealers they replaced egr valve they said it was full of carbon when i asked what can be done to prevent this happening again they practically said that its just one of those things that nothing can be done to prevent the carbon build up

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