First dump from OIL CATCH CAN - how's this look? :(

The sludge is coming off of the line connected to the intake manifold.

The line connected to PCV is clear.

Of course this car has all the other symptoms this pos Gen3 Prius has that gets people installing an OCC in the first place: "misfire" but only at start, drives fine otherwise, white smoke in the cold. I've already cleaned the EGR pipe, cooler, IM, etc.

Loss of coolant can be seen from the reservoir (big surprise...?)

Oil itself from the dip stick does not seem contaminated.

I am starting to think design flaw with how they secured the IM around cylinder 1 and they don't want to admit it. Think about it, if you replace the IM, you're going in and reseating / torquing the bolts and putting on a new IM gaskets.

 

2010 Prius V. about 190k miles.

 

I don't know... I'm assuming this is indicating a head gasket failure at best.

Update: After reading around a bit more, maybe this is somewhat normal/expected? Someone said it's a combination oil and water condensed? Doesn't look normal to me.

 

Hey Nutz! Thanks for chiming in. I loosely followed your youtube videos for the EGR/PIPE/IM cleaning.

The car is a daily driver. Been on the road every day since the EGR cleaning / OCC install project (same day). Car also got new plugs (the current DENSO's that Toyota prescribes) and oil change.

One thing I thought of just now with the sludge looking OCC contents is that immediately after the major EGR cleaning I dumped a bottle of techron "fuel system cleaner" in to clean up the injectors since I didn't have time to touch them or play test-the-coils this time around. So the OCC would have caught any by products from that as well. Maybe there are some detergenty solvents or something in the techron that would do that. We'll see on OCC dump #2 (if my car survives that long... still has the shaking fits)

Btw, coils and injectors are next. After that, I'm not sure what the shaking can be.

This isn't my car below in Youtube video, but my problem is basically like theirs....

(making a sound like the Prius has changed itself into a giant rock polisher.... but only for a few seconds until it corrects itself)

 

Yes... 2010 Prius V. In California - but over 150k so SOL on the extended warranty stuff for EGR/IM. It acted up before earlier in it's mileage history but I don't think it was recorded with the service people.

 

Whew. Good to know. When I first saw that (with coolant loss in reservoir) I immediately thought the headgaskget has failed somewhere. Going to try to get coils today.

 

Coolant level does drop in reservoir.

But it does maintain about 1" of coolant at the bottom of the reservoir.

 

Wait... can you explain in more detail? The reservoir on the top left.

Oh... I see what you're saying. The bit that is a little below the hole for the drain hose. Yeah you might be right.

.... so.... where is the coolant going? Or do I not want to know.

It doesn't appear to be in the oil (on the dip stick)

 

Replaced coils today.... problem is 90% better.

It still does the stutter for about 1-2 seconds on a cold start or short-trip start, but definitely clears up faster.

It was so bad before replacing the coils that it would do the stuttering at every stoplight/intersection for 4-5 seconds of pumping the gas (because I feel like that is helping... but probably isn't)

Very odd. I still thing Toyota hiding something here with what is happening with the Gen 3's.

• New plugs - the P/N toyota now sells
• "New" denso coils (from wrecker)
• EGR valve, pipe, cooler cleaned very well.
• Existing intake manifold and ports cleaned very well.
• New oil / filter
• New air filter
• New PCV valve
• OCC installed