2k1Toaster
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Re: Why I No Longer Work On Cars

Wed Nov 20, 2019 10:23 am

That is the Toyota recommended method of replacing the spark plugs. Just like on the Gen-2. However you don't have to do that at all. You can get to them all without removing a darn thing as long as you have the right socket attachments and the ability to blindly place components without damaging the spark gap itself. I've done it before. And after 120k miles and replacing my plugs, the gap was still in spec. It was purely preventative maintenance at that point. If every 10 years you've got to spend an extra hour on car repair... That doesn't seem so bad.
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Titanium48
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Re: Why I No Longer Work On Cars

Wed Nov 20, 2019 1:52 pm

Fortunately modern iridium spark plugs that last for 150,000 km or more have made changing spark plugs something that usually only needs to be done once or twice in the life of the vehicle. A PHEV with a decent EV range allowing it to only runs its ICE occasionally might never need its plugs replaced. Even if it does, it will probably have an inline 3 or 4 cylinder engine with the plugs readily accessible on top.
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LeftieBiker
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Re: Why I No Longer Work On Cars

Wed Nov 20, 2019 2:52 pm

2k1Toaster wrote:
Wed Nov 20, 2019 10:23 am
That is the Toyota recommended method of replacing the spark plugs. Just like on the Gen-2. However you don't have to do that at all. You can get to them all without removing a darn thing as long as you have the right socket attachments and the ability to blindly place components without damaging the spark gap itself. I've done it before. And after 120k miles and replacing my plugs, the gap was still in spec. It was purely preventative maintenance at that point. If every 10 years you've got to spend an extra hour on car repair... That doesn't seem so bad.

How do you get the spark plug cover off in that case...?

The problem turned out to be a defective ECU. Toyota knows about it and quietly extended the warranty on that part to 8 years. They reprogrammed it for free today, and will replace the ECU for free if necessary. So if you have a Gen III Prius that's idling roughly, and you get codes 0300 through 0302 (or 0304) you may be eligible for a free fix. Unless it's a 2010 or 2011...
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GerryAZ
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Re: Why I No Longer Work On Cars

Tue Jan 07, 2020 11:28 pm

Zythryn wrote:
Wed Nov 20, 2019 7:10 am
Decades ago, I had a 76(?) Monza. To replace the spark plugs the engine had to be hoisted out of the car.
Bad design is nothing new.
GM later published a revised procedure: Drill holes in fender wells and use long socket extension. You still had a choice of either jacking the engine up or removing the right side exhaust system to remove the starter motor.
Gerry
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LeftieBiker
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Re: Why I No Longer Work On Cars

Wed Jan 08, 2020 12:30 am

The problem turned out to be a defective ECU. Toyota knows about it and quietly extended the warranty on that part to 8 years. They reprogrammed it for free today, and will replace the ECU for free if necessary. So if you have a Gen III Prius that's idling roughly, and you get codes 0300 through 0302 (or 0304) you may be eligible for a free fix. Unless it's a 2010 or 2011...

I need to update this. The problem returned immediately, and we ere then told that there is no extended ECU warranty. We don't even know, at this point, what the issue is.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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