ronschuck

2007 400h gas engine shakes and bangs when it starts

NateJG

If you could be a bit more verbose, perhaps someone could understand your issue well enough to diagnose it.

Surely you can admit that you've been a bit cryptic.

If you spend a little time describing your symptoms, duration of the event, things that lead up to it, follow it, and as many details as you can - then perhaps someone will take a similar amount of time trying to help.

Just a thought.

Regards,

NateJG

ukrkoz

I understand him. I know that shake oh too well.
Does it do it during normal driving or during cold starts only?
I am not sure they made hybrids with a four cylinder on RXs - but is it 4 or six?
Either way, my pretty decent guess is as follows:
1. oil leak back issue resulting in low oil pressure. Points towards failing connecting rods bearings. Was it ever run low on oil?
2. bad power train mounts.

thomas1

Funny thing I did an ISC reset and a lot of the feel went away. However a upper motor mount prevents the movement of the engine also...It is located on passenger side by the brake reservoir.

ukrkoz

The torque strut. Aka, dog bone. PITA to get out. Covered by brake fluid reservoir.