General HHR Discuss anything related to the Chevy HHR that doesnt seem to fit into the more specific categories below.

replace Upstream Oxigen sensor

Old Nov 13, 2021 | 07:14 AM
  #21  
Radco's Avatar
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Glad you got it out ! Had mine done a month or so ago.
And for me it was easy as I had my mechanic do it :O
But it was also a bear for him to remove, He had to heat is up to finally get it and use a few choice words lol
I could hear him swear from miles away lol
Old Nov 15, 2021 | 09:36 AM
  #22  
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thanks you but to remove the downstream sensor was a huge problem for me now, when I tried to came off with a wrench the pipe was broken here is the picture so now I will need to find a way to fix, find a adapter for Oxigen sensor or a adapter pipe with the bung welded or just the bung and after I will welded in the adapter pipe after. but I don't know what is the size of the bung I will need.
here is the picture.


so any idea will be welcome. Thanks in advance
Old Nov 15, 2021 | 10:21 AM
  #23  
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You should just replace the entire downpipe with a new one.
Old Nov 15, 2021 | 11:17 AM
  #24  
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that will be next year in the summer, we are almost in winter, so what I need is temporary solutions
Old Nov 15, 2021 | 11:53 AM
  #25  
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There are several companies that make clamp - on O2 bungs. Do a Google search for your needs and size.

Old Nov 15, 2021 | 01:16 PM
  #26  
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that will be perfect the bung size I need(allHHR) is 12 mm, I tried to find in amazon, other way is to make one by myself.
1- weld the bung on the new piece of pipe.
2- cut at the halft of that pipe.
3- Clean the rust in the area.
4- apply JB welder cement in that area.
5- Install the half with the bung on the exhaust pipe(O2 sensor location to cover the hole) and apply the Hight temperature tape over.
6 waiting 4 hour to cure, I think will be more fast.

Old Nov 15, 2021 | 02:11 PM
  #27  
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will that epoxy glue and tape take that kind of heat??….1200-1300 F? I would try and stay all metal myself.



myself.


1- weld the bung on the new piece of pipe.
2- cut at the halft of that pipe.
3- Clean the rust in the area.
4- apply JB welder cement in that area.
5- Install the half with the bung on the exhaust pipe(O2 sensor location to cover the hole) and apply the Hight temperature tape over.
6 waiting 4 hour to cure, I think will be more fast.[/QUOTE]
Old Nov 15, 2021 | 02:39 PM
  #28  
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the JB weld work perfectly, this is very very extreme ceramic cement.
Amazon Amazon

Old Nov 15, 2021 | 04:46 PM
  #29  
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You have to crawl under it to fix that rusted out pipe anyways, so just replace it

https://mufflerexpress.ca/products/c...rter-2005-2007

This comes with everything you need fasteners, gaskets, bung plug, trust me it’s the easiest way to fix the pipe!
Old Nov 28, 2021 | 02:31 PM
  #30  
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Originally Posted by Oldblue
You have to crawl under it to fix that rusted out pipe anyways, so just replace it

https://mufflerexpress.ca/products/c...rter-2005-2007

This comes with everything you need fasteners, gaskets, bung plug, trust me it’s the easiest way to fix the pipe!
I found this solution, I weld a bunt on the new piece of pipe, cut under and around to make a shape around the hold in the exhaust pipe, I cover with a metal clamp, tight and apply jb-weld around the new adapter pipe,wait for 24 hour and of course I took a metal brush drill and clean and remove as I can the rust on the exhaust pipe, and after apply the jb-weld y boom, working fine.

BUT.... the blower motor not want to work I don't have heating in my car but the air condition either, so I replace the sensor temperature also but the thermostat is working fine. so any idea why happens that now.or inned to open a new thread with that question? thanks for everybody to help me with sensor issues...





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