If the engine uses a lot of oil, a clogged catalytic converter makes sense.
But here’s the rub.
If the engine uses that much oil, it’ll just destroy another catalytic converter.
You might want to try adding this to the engine oil if you decide to replace the catalytic converter to see if at least slows the oil consumption down.
https://www.restoreusa.com/index.php
Tester
One mechanic recommended that I buy a quality catalytic converter like one from Magnaflow to maximize longevity. I don’t see any from Magnaflow on the Rock Auto website.
I see two Walkers that have a $200 price difference. Is there a significant difference in quality between these two?
It doesn’t matter what brand catalytic converter is installed.
If the engine uses excess oil, it’ll plug up those cats.
Tester
Reread my post…
No, again reread mine and asemasters post(s)… Your transmission was already failing…
And did you take it to a transmission shop (specialist)?? And did you not take the ATF, pan gasket and filter to the auto shop and ask them to change it??
Did you inform the mechanic that you were already having transmission issues??
What did the mechanic say about the transmission issue???
None of the catalyst repair is going to address the transmission problem (fault code related to the torque converter system).
Advance auto parts ca get them, but like Tester said, burning oil will kill the new cats also…
PLUS if you can’t drive it due to a worn out transmission then what???
Nope. Simply not true.
No. The catalyst is restricted because, as you said,:
The transmission code went away when the fluid was changed (P0741). I cleared it and it hasn’t come back after 1k miles of driving.
One mechanic told me that if I install a new catalytic converter I can get 100k miles on it despite the engine burning oil. He said I would just have to do these few things:
What do you guys think about this?
You haven’t been doing those things, but you are going to start now?
Oil quality doesn’t matter. the oil is still going to burn.
It doesn’t matter m if the oil is clean or dirty, it’s still going to burn.
You don’t let the oil get too low, no matter what.
You;re suppose to check the coolant level as you would the oil level.
Tester
Probably because the TCC solenoid is freed up now (for now anyway) but the damage is already done… And without addressing the valve body issues a rebuild will not last long…
The P0741 OBD2 trouble code indicates that the torque convertor clutch can’t disengage, so performance can suffer and transmission damage can occur.
Symptoms of a P0741 include:
If you want to make this car last then your best bet (but very unlikely) is to find a donor car that has either the frame has rotted out or has been totaled out in the back, with low miles that was taken care of, and use the engine, transmission and cats… And if you find one then you might want to go play the Lotto next…
I am a huge fan of Toyota’s and have owned at least 5 in the last 25 years (have 2 now) and my brother has 2, one with an est mileage over 750,000 miles, but I think you can put a fork in yours cause it is done without spending a LOT OF MONEY to get it back on the road running right…
Your car has two oxygen sensors. One is between the engine and the catalytic converter (front) and the other is between the catalytic converter and the muffler (behind). It looks like he removed the front sensor. That means there is a hole in the exhaust tube in front of the catalytic converter that wasn’t there during normal operation and the exhaust can get out there. That’s how he deduced that the catalytic converter is clogged.
Can people learn from their mistakes?
I’m likely just going to replace the cat so that I can get at least another year out of the car.
How did you get the Toyota to last that many miles?
How much oil does the engine burn? How many quarts of oil do you need to add per 1000 miles to keep it topped off?
It is a 5 speed, but the oil and filter was changed every 3K miles, Spark plugs at whatever mileage was recommended… I replaced the starter and a few battery’s… one ball joint broke, replaced it…
I serviced a small fleet of Corollas (25-30) that only did oil changes and safety repairs, brakes, tires, suspension etc. These were known to be driven hard from job to job and abused (cleaning company), all were automatics and they all had 500,000 miles or more before being traded in (unless totaled), they very rarely had to be towed in…
Yes
The more expensive cat meets California emissions specs
The cheaper one doesn’t
It seems we’ve asked you more than once just how much oil your engine burns up and you haven’t yet responded, as far as I can tell
I asked you if you live in a state with emissions testing and I believe you haven’t yet answered that question, either
Look at the underhood emissions decal . . . does your car meet California emissions specs?
