Avensis Diesel Spluttering Performance At Low Revs

August 28, 2009

Hi,

My 2005 2.0 Avensis D4D has 30,000 miles on the clock.

When I drive off at a reasonable gentle (normal or ordinary if you like) pace the engine misses and splutters unless I put my foot down.

If I continued to drive at around 10 mph the spluttering missfire would continue till I increased the revs.

It occassionally misses when driving at speeds above this as well.

Does anyone have any clue as to what could be causing this problem?

I work with many different diesel vehicles all day, most every day and I never had this problem?

Thanks for any help

August 28, 2009

Hi,
My 2005 2.0 Avensis D4D has 30,000 miles on the clock.
When I drive off at a reasonable gentle (normal or ordinary if you like) pace the engine misses and splutters unless I put my foot down.
If I continued to drive at around 10 mph the spluttering missfire would continue till I increased the revs.
It occassionally misses when driving at speeds above this as well.
Does anyone have any clue as to what could be causing this problem?
I work with many different diesel vehicles all day, most every day and I never had this problem?
Thanks for any help

hello MAte + welcome to the club

NAturally this happens during initial 2-3 secs.

This poor injection will soon criate another problem with power loss due to carbon deposits in both turbocharger (if any installed) and EGR valve. Naturally the carbon is accumullated in the pipes having reduced the exhaust pipes inner diametre resulting an exhaust contra pressure is originated and being broken the working cycle. WHat's going on during these 2-3 secs ?? Normally the cycle portion of the diesel (especially on idle speed) is a constant value that is influenses on RPM. Once all injectors simply pour the diesel but not inject is - this means the diesel injected is not injected as diesel fog (mist) but as diesel jet only and this jet is accumulated on the piston/s burner side. In order to have this diesel burnt it is required time to heat is up during compression stroke. These 2-3 secs mean -- during this time the diesel poured is being heated for the condition of vapours and only after it might be sparked criating such noise in question. This is the same that is going on in your case. In order to be 100% sure you have to check with your previous maintenance of the injection system --- how long have all injectors run before this issue. FYG - no any diesel drops are admissible on the einjectors tips -- in case of an opposite -- the result is the same as in your case. Try to find reliable private workshop that works with injection systems adjusting/repair - -it would be cheapper. Good Luck to YoU/Igor