My Mazda6 is currently at its 55,000 miles mark. I bought it at a certified dealership when it was at its 20,000 miles mark. I have serviced it regularly at a Mazda dealership regularly and had no issues with it until an engine check light came up last month. I took it back to the Mazda dealership service and they diagnosed it to be a converter issue and as they did not have stock they ordered it and told me it was fine to drive around until then. It took two weeks for the part to arrive and in the mean time my car started to make some rattling sounds and wasnt running as smoothly. I took it back to the dealership and they fixed the part but they had no clue regarding the sound of my car. They told me to drive around and see if it goes away. On my return from the dealership the car stopped at a traffic signal, the sound became worse and the check engine light turned ON. Now they think it is an engine failure and nobody knows why??? Now it is costing me $7,000 .....I did not have an extended warranty on the car. I am screwed. I called Mazda and they offer a mere $2500 assistanship....Does anyone have any comments on this. I would appreciate if you can advise me regarding what I should be doing regarding the car, getting more help/assistanship etc.
Mazda6S engine failure at 55K miles!!!
1 - 14 of 14 Posts
Joined
·
585 Posts
Another victim of precat induced engine failure.
When the ceramic precats fail, they shatter and clog off the exhaust flow. If it is the rear precat, the sand like material gets sucked back into the engine through the EGR system and destroys the engine in about 20 seconds.
When the ceramic precats fail, they shatter and clog off the exhaust flow. If it is the rear precat, the sand like material gets sucked back into the engine through the EGR system and destroys the engine in about 20 seconds.
Joined
·
1,107 Posts
what year is your 6?
what type of service performed besides tires&oil changes?
did you notice any hesitation before or while Engine light was on?
any oil loss; blue smoke or leaks?
our cars have cats and worst, pre ca ts which are cats that are built into the exh manifold. when most people that had pre cat issues, it was usually due to misfire, too much oil consumption(bad PCV) , and/or the car running to rich /lean( vac leak/PCV hose leak/ certain cold air intake).
i think if you would've got the service advisor's word about "you can drive it until the part comes" in writing, you have a better win.
what type of service performed besides tires&oil changes?
did you notice any hesitation before or while Engine light was on?
any oil loss; blue smoke or leaks?
our cars have cats and worst, pre ca ts which are cats that are built into the exh manifold. when most people that had pre cat issues, it was usually due to misfire, too much oil consumption(bad PCV) , and/or the car running to rich /lean( vac leak/PCV hose leak/ certain cold air intake).
i think if you would've got the service advisor's word about "you can drive it until the part comes" in writing, you have a better win.
Joined
·
74 Posts
prolly pcv valve in combination with pre cats, yup i went thru it as well. new motor new exhaust = the win
Joined
·
4,734 Posts
+1!
Ok then you need to get the car verified that the cat material destroyed the engine. Should see scoring on cylinder walls and low compression... maybe valve damage. You may have to take it to an independent shop to have them confim. Print out the lists of other people reporting the problem
Im not sure if this would be an issue you would have to bring up with the dealer or mazda itself.
Joined
·
3,568 Posts
Sorry for your loss OP.
Dang, and I thought the MS6's were the only ones with serious design flaws. What's wrong with these people? This is the first and last Mazda I'll ever own.Another victim of precat induced engine failure.
Joined
·
3,744 Posts
I've pretty much reached the same conclusion.
Cars have problems; that's a given. But it's Mazda's total lack of owning-up to issues like the catalytic converters and PCV vales that will keep me from buying another Mazda. I also make sure people are aware of what kind of issues people have seen.
Just 3 weeks ago I came out of the store to find a couple checking-out my car. I told them I couldn't recommend a Mazda6 with a clear conscious.
Joined
·
541 Posts
Don't waste your money unless you can get rid of the pre-cats. You can't get rid of them if you need emission testing. Get an engine from the junk yard and get rid of it!My 2006 Mazda 6 3.0 V6 automatic is the biggest piece of shit I ever bought. I have 42,000 km and have had the following changed: transmission (put on tranny cooler after that!), fuel tank & sending unit, 1 pre-cat and other cat. Currently I have changed 2 O2 sensors and 2 more to change (idles like shit with no get up). The exhaust had to be re-worked because the bends were too sharp and flattened in front of main cat (worst exhaust design I have ever seen). The O2 sensors from Mazda are cheap. I am putting on NGK, NTK O2 sensors on. I would like to buy a different car, but I am currently not working, living off my savings from selling the condo, so I am trying to fix things to avoid pre-cat shit and semi-enjoy the car. My emissions test comes up in 6-8 months.
Attachments
1 - 14 of 14 Posts
