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I was wondering is the gen3 prius cat and 2017 prius prime the same? Im asking because the heat exchanger is broken and im leaking coolant out of...
How many miles on the car? If you're losing coolant but there's no visible leak, have them check the exhaust heat exchanger. They tend to fail...
Take it to another dealer. I don't know how they would scope the leak, since the exhaust heat exchanger is behind the CAT and in front of the...
some of the early ones leaked. by the time the temp light comes on, the engine is blown. and of course, toyota tried to blame owners until the...
congrats and welcome back! gen 4 has been pretty solid. infotainment screen quirks, windshields cracking repeatedly, leather peeling on steering...
The CATs are different and a totally different heat exchanger setup. I believe the grill is a one piece unit from Toyota. You can try to find a...
Is that a calculated amount of coolant loss based on the 1/2 gallon of coolant you refilled two days ago? or have you been watching the coolant...
Short answer is yes; but not directly - Which is why Toyota is thumbing their noses at that theory. The heat exchanger leak will cause a low...
Gen 4 has been getting coolant leaks in the exhaust heat exchanger, which necessitates replacement of that whole section, including catalytic...
toyota has reduced precious metals with each generation. what thieves know, and how often gen4 cats are stolen may prove difficult info to find....
Another hypothetical cause of water in EGR passage, is leakage within the cooler (heat exchanger) between the exhaust passage and its internal...
Could not have been said better. I agree lots of problems with the heat exchanger.
Most likely leaking in the heat exchanger in the exhaust system. We're starting to see more and more of this in gen 4, but I think yours might be...
That would be a long way to go with a borescope, since the heat exchanger is located between the drivers and passenger seat in that center hump....
This is my why... after watching this video and learning how to tell if you have a head gasket leak I decided to diganose mine. Although the Prius...
I did open that little allen head cap yesterday. I had bypassed the heat exchanger on the Cat but put that back together as there was no leak and...
The TSB for it seems to apply to 2016–19 Prius and 2017–19 Prime. T-SB-0135-19 Hard for me to tell from here how "major" a problem it is, other...
Yup. Three indications of the HG failure; knocking, misfires, and white smoke. The only better confirmation might be as @ASRDogman said, to do a...
Might be why the cars leaking coolant. I doubt I'll be able to guess, for at least a year, maybe longer. Which bypass did you do? engine bay our...
This is likely an early sign of the 'heat exchanger' issue (coolant leak) - search this site for many threads. Check to see if you coolant is low....
