Routine warranty visit to service dept...

Check engine/Trac off light on...

This was yesterday, this morning got their call telling me the catalytic converter crapped. No parts on shelf so loaner it is..

 

That's a first I ever heard of the cat going bad. That sucks. How long till they get the part?

 

Make sure they check the CPS as I recall a few guys having had that cause a converter failure too.

 

NOOOOO! Smitster!!!

 

2 days was told but, who knows..

 

good luck with this OP.

 

All 4 crapped out...or was it just the rears or front??

 

Can you elaborate on this i am in the same boat. need to find a cheaper fix. my mechanic said i was good for a bit until i have $ but that might take a while

 

Well the rears arent monitored by the ECU so it would have to be one or both of the fronts.

 

If you have an 05 then I don't think it would be the same.

 

OP how many miles on your truck?! Seems ridiculous that a cat is already failing.

 

duh just got excited

 

That's what I told the writer, truck has 12k miles on it, 2016 model.

Two rears are not monitored but, he didn't say which if not both fronts...

 

If a failing CPS causes a lot of misses (and it does) then rich conditions can occur. Too rich and you burn up a cat.

 

Engine code showed p0420

 

CPS

 

But didn't have the same symptoms of a CPS failure, truck ran fine, no hesitation or shut off or limp mode or batt light... unless this one is different...

 

VIN on the cps recall list?

 

CPS could be missing and you don't know it. A rich condition could exist. How has your gas mileage been? Is it trending lower up to the time of the cat failure.

 

It has, horribly..