Hi,
I have an IS250 Sport (Manual), over the last few weeks i've noticed that when i'm in 3rd gear or above and I put my foot down the rev get go up to about 2500-3000rpm hold for a couple of seconds drop down by 500rpm and them the car starts to accelerate again. Also if i keep my foot down then it feels like something is slipping in the engine, any ideas as to what could be the problem?
One last thing if I do put my foot down for a minute or 2 then I get a weird smell coming through my vents for a few minutes.
If I do a gradual increase then it seems ok.
Any help would be appreciated.
Thanks
Nish