Highwang

I'm not sure I have seen this question and I am to impatient to look, so I will just ask. I have a loud exhaust sound when I step on the skinny peddle HARD as in passing, it's not to bad at normal speeds. I know all you HHR guys are the greatest at finding the answers to all questions Newbe's ask. Any info on a fix and cost to do so will be HUGELY appreciated.

ChevyMgr

Flex pipe between manifold and convertor is cracked most likely.

You may be able to get a dealer to warranty it, if you are still in emission warranty (8/80)

Lucky

Check the flex pipe by the exhaust manifold it is just forward of the convertor. What year and mileage ?

Highwang

It is an 08 with 96500. Is it possible to repair it without purching a complete system

Lucky

A muffler shop should be able to weld in a replacement or you will have to change the cat. Convertor.

IgottaWoody

Any muff shop can replace just the flex portion

donbrew

The prices of the parts + labor lately make it a toss up between "after market" cat pipe and repair flex part. On Ebay I see an after market cat for $165 shipped, the flex portion is $65 or so shipped, add labor comes out pretty close

badassbowtie

here you go....I have been copy & pasting this a lot lately....

https://www.chevyhhr.net/forums/how-tutorial-library-21/how-repair-flex-pipe-31536/

Highwang

Thanks for all the Great INFO I did the EBAY part thang and should be here by next wednesday. Will keep you posted on the out come......YOU GUYS ROCK

badassbowtie

Its about as easy as an oil change if you can weld(or know somebody)
5(?) bolts If I recall correctly...


glad we could help you out!