Quote Originally Posted by timo07 View Post
Hi DD,

Have not posted here in a while but I'm still following this thread for tips and tricks. I just want to get your opinion regarding my innova d4d. Has yet to reach 35K km but had my PMS prior to reaching 34K km on the odo and this is about 2 to 3 weeks ago. Had the usual change of oil, oil filter and fuel filter element and casa recommended changing the air filter because of the excessive accumulation of soot and dust, so I did. Note this is the second air filter change as I had the first one around 18 to 19K km. The issue is not after this PMS but before that. Several instances before i decided to have the PMS, I would notice that during early morning start (from not being used in 3 to 4 days), there is a very faint engine hunt that is actually unnoticeable on the tach needle, though I can feel it quite well based on the engine sound. This engine hunt was gone after the PMS was done. My question is, is the hunting caused by a clogged air filter OR clogged fuel filter? Note that I change my fuel filter element every 5K km along with the oil change. Thank you in advance and sorry for the long post. Will appreciate your response.
This is the first time I hear about this condition.....so I can't give an opinion. Offhand, I don't think hunting was due to clogged fuel/air filters.

It would be good if you can ask your Toyota service advisor about this and share your discussion on this thread.