1.4L P0420 Code, Exhaust Leak, $600?

[TURBOBX]

1.4L w/borla exhaust throwing a P0420 code. Initial research and chatting with dealer made it sound like warranty repair cat replacement. Just got off the phone, said it was leaking @ downpipe before the cat... want $600 for replacement, not covered under warranty. What on earth is being replaced for that much bread? I'm picking it up, asking more questions, but wondering if it's completely off base for replacing that part. Thanks.

 

[MaD]

Is it the downpipe? or are they sayin the first cat is leaking... if it's the cat, they are spendy... if warranty is involved, they should replace, if not... them just replace it yourself with a high flow aftermarket cat and be miles ahead...

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[TURBOBX]

Is it the downpipe? or are they sayin the first cat is leaking... if it's the cat, they are spendy... if warranty is involved, they should replace, if not... them just replace it yourself with a high flow aftermarket cat and be miles ahead...

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Just got back. Was just downpipe they want to replace "to start." Said severe rust. Will take photos when light again outside. $250 parts and 3 hours for $300 labor. Isn't it bolt on???

 

[MaD]

Yes it is... takes about 1/2hr... tops... if they don't warranty it... get a aftermarket high flow and do it yourself, if you can... just sayin

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[MaD]

Zzp has cats starting at 79.99 [emoji106] [emoji41]

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[EPYON96R]

Its a relatively easy job to do. like 6 bolts or so.you can do it with regular sockets.

 

[TURBOBX]

Thanks for the inputs... so, talking the downpipe aka front pipe.. 1/2 hour should knock it out? If I get some jack stands think I'll be set? Sorry for n00b questions but I haven't done exhaust work on it myself and really irritated at the labor quote. I think this is the part http://www.gmpartscenter.net/oe-gm/95129306. I may pick up new gaskets if that's the case.

 

[RMinNJ]

Won't the bolts be rusted and won't budge or snap....that may be factored in the quote.

The BNR downpipe thread (seems like a no brainer to get that one?) makes it seem like a doable install.

 

[MaD]

Ya, get new bolts... they tend to strip out the bolt threads... even on a new exhaust... happened on mine [emoji53] and I think I was under 20k miles at that time

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[MaD]

Just looked at the part you linked... that's after the cat, it's the flex pipe... check around for one, but still easy install. Get yourself a good penetration spray and soak the bolts down good the day before you start, helps a lot

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[Chevrolet Customer Care]

1.4L w/borla exhaust throwing a P0420 code. Initial research and chatting with dealer made it sound like warranty repair cat replacement. Just got off the phone, said it was leaking @ downpipe before the cat... want $600 for replacement, not covered under warranty. What on earth is being replaced for that much bread? I'm picking it up, asking more questions, but wondering if it's completely off base for replacing that part. Thanks.

Hello TURBOBX,

I regret to hear that you are experiencing concerns with your Sonic. Please know that you are a valued Chevrolet customer, and we want you to have a positive experience with your vehicle. Should you have any questions, or would like our assistance with anything, please feel free to send us a private message. Our team is always glad to help.

Best,
Cecil J.
Chevrolet Customer Care

 

[EPYON96R]

Btw there are two cats. I suggest you get under the car and double check where the leak is coming from before buying parts.