Is there a decisive way to tell if a catalytic converter is working or not??

Thanks

Andy

 

emissions test?

 

Usually a rotten egg smell from the exhaust is a good indication of a bad cat.

Play with this website's Trouble Shooting guide for awhile


http://www.autozone.com/servle...=info




Modified by Behan at 9:38 PM 8/10/2004

 

bang on it. if it rattles that means it's broken. also if you have a laser thermometer you can measure the temp b4 and after the cat. if the temps are drastically different it's clogged.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 18gLUDE &raquo;</TD></TR><TR><TD CLASS="quote">bang on it. if it rattles that means it's broken. also if you have a laser thermometer you can measure the temp b4 and after the cat. if the temps are drastically different it's clogged.</TD></TR></TABLE>

Regarding the temperature: Outlet temp will be 100 degress F more than inlet temp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AndyD &raquo;</TD></TR><TR><TD CLASS="quote">Is there a decisive way to tell if a catalytic converter is working or not??

Thanks

Andy</TD></TR></TABLE>

Most conclusive would be an emissions test.

If the emissions test shows elevation of CO and hydrocabrons, then its the cat. 80-90% of CO and HC's channeled into the cat ( if the car is warm) should be eliminated by the catalytic converter (if it's working).

 

it would smell.