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Exhaust fun

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  • 1 Post By rhino169
  • 1 Post By Fk5
  • 1 Post By circus

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  #1 (permalink)  
Old 06 Feb 2020, 05:43 pm
Young Cruiser
Join Date: Dec 2012
Posts: 67
Default Exhaust fun

Well ages ago I had a leak between the flange near the manifold and the catalytic convertor. The muffler guy suggested replacing the catalytic back then... maybe 8 yrs ago, but I asked is there cheaper way to fix it since I had so many miles back then. He said I can weld this so it will never come off.

This worked great until recently.... I believe mostly due to bad motor mounts that had the engine rocking back and forth finally snapped the pipe near the weld after the catalytic under the car. I let that go a bit too long until the pipe and catalytic dropped into the road and was dangling under the car only being held by the catalytic sensor wires while going 70 mph!

I pulled over and pulled the wires off and threw the catalytic and pipe into the snow to cool and then drove home with the loudest car around!

I have now frankensteined the catalytic back onto the flexible piece hanging after the flange and tied it back into the remaining tailpipe for now.

My question is, do I need that catalytic at this point in this car considering its age?
Is the catalytic doing anything for me, now that the sensor is disconnected?

Id rather just eliminate it all together since it is so heavy.

Thanks for your insight!
rockandroller likes this.
386,600 miles as of 2/6/20 '01 PT Cruiser automatic Original (Engine, Transmission, Power Steeering Pump)...3rd Radiator and Fan (with added fan toggle switch mounted inside of car)...3rd Crank Sensor, 2nd Cam Sensor, 3 Timing Belts replaced (1st at 140,000 the 2nd at 345,000 the 3rd at 369,000 due to tensioner fail), 1 Rack and Pinion, 1 water pump at 345,000, 2 alternators - 1 at 345,000 and 1 at 384,000) 4th Watts Link, Serpentine Tensioner at 369,700

Last edited by rhino169; 07 Feb 2020 at 10:15 am.
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  #2 (permalink)  
Old 07 Feb 2020, 08:26 am
Fk5 Fk5 is online now
Senior Cruiser
Join Date: Jul 2011
Location: Colesville, MD
Posts: 1,868
Default Re: Exhaust fun

Need is a tough word to define.

I think that removing any of the pollution control equipment is considered tampering. Theorectically, I think there are fines of up to $10K for removing them. In practice, I think you'd just fail your smog cert, which may or not be an issue where you live. Running without may also trigger a CEL, but there are work arounds for that.
NitroPT likes this.
2003 GT 5 speed
162,000 miles
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  #3 (permalink)  
Old 07 Feb 2020, 12:33 pm
Regular Cruiser
Join Date: Jul 2016
Location: east central wisconsin
Posts: 170
Default Re: Exhaust fun

Weld new ends onto your cat. Patch up or replace any inexpensive rotten pipe. Easy to fix out of the car. So what if it doesn't look the same, nobody minds. With a small sand blaster and a mig welder exhaust work is almost fun. Sure improves the car for little money or effort.
rockandroller likes this.

Last edited by circus; 07 Feb 2020 at 02:56 pm.
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