Knocking/bumping when engine turns on/off

generally, the bump/roll is due to the engine spinning to its next starting point, and the parking pawl engaging

the bump when driving might also be normal, there's always some transition feel, but that's hard to tell over the internet.
if it is getting worse, the mounts are a good place to start, and then maybe some engine work

 

Having owned my 07 since new I noticed when the hybrid battery was getting tired it made more of a start stop ruckus like what your seeing.

I like many others on this site bought a Prolong a hybrid battery rejuvenation charger/discharger and after
Charging and discharging have gotten a couple more years out of it. Less ruckus with healthy battery.

Start thinking about what your going to do when the hybrid battery dies because that’s the most common thing happening to the G2 platform. Thousands of posts about it. Your battery is 13 years old.

On your 2006 unless it’s been replaced your way over due for hybrid battery issues.

 

Replacement batteries have more than one sticker on the case. The only way to really tell is to take the battery apart and check the dates. I would say if it doesn’t show up on Toyota.com it probably is the original.

 

newpriusbatteries.com

 

well done!

 

Should ignition coil packs be changed when plugs are changed? Or wait for other indications of problem? Code?

 

I don't think they fail much. I tend to look at them carefully if they're out for any reason. Last time I had mine out, I noticed a slight sign of some discharge tracking on one of them where the rubber boot joins the body, but it seemed minor enough that I just pulled the boot off, cleaned up the tracking, put some dielectric grease there and the boot back on, and reused it. I'll take another look the next time I have a reason to.

 

My 06 hybrid battery is still original and I am wondering if the prolong charger would be worth it in my case. My battery is still healthy and never discharges less than the 5 or 6 blue bars (excluding when max ac is on in the summer or going up the rocky mountains on a trip). I plan on having this car for a long time (84k miles currently). Or do I just let it age and replace the battery when that time comes. Down the road I am also open to reconditioning, but I understand my modules are very old. Any thoughts? I definitely have paranoia on this matter

 

I bought one of there original systems that also used the light bulbs for discharging. i was able to keep my tired battery going for 2 more years till the newpriusbatteries.com came along.

I sold that old prolong system last year for more than I paid for it. Now they have automated chargers much more expensive than my old system. But it works!

 

I’ve got nearly 200k miles on my 2007 original HV battery so I don’t think you’ve got much to worry about there, with 84k, it’s the other stuff that may fail. Keep all fluids changed and drive it at least a few times a week. I use mine as a cheap mode of transportation and the folded seats and hatch area make a great cargo transporting vehicle.

 

How is that battery holding up? how many years have you had it and how many miles since battery replacement?

 

This was posted and maybe its destiny haha. Do you think it would work with gen 2 as well besides maybe needing a new harness?

 

84000 miles on a 2006 may be troublesome as the car has not been driven much over the last 15 years. Same thing I went through in my G2.
That kills the battery.

Hybrid battery’s in G2 do best driven a lot….all the time.. Constant charge /recharge. Sitting kills them and excites corrosion.

 

84,000 over 15 years is a bit over 100 miles per week. 20 miles per work day. All depends if it is evenly distributed driving. More is better but the devil is in the details.