Best mpg is 35 around town (driving conservatively). Gasoline engine runs for 2-3 mins on startup and sounds like a low growl. Looking for reasons why it doesn’t switch to EV sooner. Had plugs changed, treated gas and oil, cleaned EGR valve (as well as other fuel components). Dealer checked codes but doesn’t seem to know (or care) why MPG is low. Any help would be appreciated. Grace
The hybrid battery could also be on its way out if the engine is running more often than usual. Is the battery meter SOC fluctuating more frequently than before?
Thanks for reply. I’ve had a year, so I’m not sure what’s customary, but I think it is up and down quite a bit. thanks for the reply. I’ll have someone take a look at the brakes again. Front brakes, two years old, rear brakes, just done by dealership. Thanks for the reply. I’ll have to ask the dealership if they check the cooler I believe they did clean intake manifold. 149000 miles
Mmm, with the NiMH, if it's on its way out, it'll typically run down to 2 bars pretty quickly and the engine is forced to run to charge it back up. You may see the SOC rise again when you regen brake but it'll run down again.
I'm certain the dealership did NOT clean the cooler. MAYBE replace it... Nor did they clean the manifold. I doubt thy did anything with it. You can find a used cooler on ebay, or junk yards. Then clean it yourself. And have them replace it if you can't do it yourself. Same with the intake manifold. Thanks for the reply. I’ll have to ask the dealership if they check the cooler I believe they did clean intake manifold. 149000 miles
Cleaned in place or off the vehicle? Fuel system cleaner poured in the tank can dislodge larger debris which will quickly clog the injectors' finely pored filter baskets. If the baskets are damaged, the debris can lodge themselves in few different places preventing it from ever closing completely, and resulting in a rich mixture for that particular cylinder.
Yes, I get a lot of fluctuation in bars. Had purple bars for a day or two but gone now. Any recommendations for battery replacement? Is OEM best?
The only time I get purple bars is if I run the A/C and idle or if I accelerate hard while the engine is cold. With NiMH batteries, it's rare I get down to 2 bars. It could be on its way out. I don't because when ours went, the Gen 4 was about to launch so we took it as an opportunity to upgrade to the Gen 4. At that time, we were quoted CAD 3,000. It's likely the price is higher now due to inflation. Depends how long you intend to keep the vehicle. If the rest of the vehicle is in good shape, you could replace it with a new OEM HV battery. This way, the car will operate almost like new and you'll get back mpgs closer to what it was when new. The alternative is to buy a refurbished OEM which is cheaper of course. Or even cheaper still, a salvaged battery but with that, you don't know how long the life will be as it'll be a crapshoot unless it's been tested for state of health.
It's more than just a steering reset. It also resets ecu and hybrid battery. Also, clean your MAF sensor with CRC cleaner. If you do all three: reset, maf, fuel-treatment. Guaranteed you will gain/restore MPGs.
And if you have any dents or peeling paint or cracked glass anywhere on the body, it magically fixes those too. It also self-cleans the EGR circuit, rebuilds a leaking head gasket, and regrows a stolen catalytic converter. This secret trick makes your decade old car look and function just like the day it rolled off the assembly line.
Here are some folks from the priuschat community that have benefited from the reset, maf cleaning, fuel treatment. Lost 10mpg After Replacing 12V Battery | PriusChat Prius 3 pulls left while driving and breaking/rear axle/suspension issues | PriusChat Prius Plug In gas engine cuts off after 5 seconds | Page 2 | PriusChat
