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MONITORS WORK...EXHAUST LEAK SOMEWHERE...PROBS. WITH PASSING SMOG...2001 TAURUS

  • mark11
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14 Mar 2020 22:31 #38367 by mark11
2001 ford taurus ses...6 cycl 3.0 liter 24 valve dual overhead cam...186 00 miles...

Having probs passing smog...monitors work on last test...mar 14 2020...
...but it sounds like exhaust leak might be adding to the non pass.

new UPPER catalytic converter installed 2019...
installed new LOWER cat converter MAR 10 2020...

Can't see ANY holes in exhaust pipe itself...
maybe the gaskets-flanges on the LOWER CAT CONV. install weren't done right?

Thanks.

MARK11
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  • Landroverman1958
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15 Mar 2020 08:59 #38374 by Landroverman1958
If available smoke exhaust system,easiest to find a leak,

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15 Mar 2020 09:45 #38375 by John Curtis
If a smoke machine isn’t available use a shop vac over the exhaust on the blow port and spray soapy water around the exhaust

Thinking out loud always helps me in the process.

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  • Tyler
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15 Mar 2020 12:41 #38379 by Tyler
What was the specific reason for the smog failure? Trouble code? Tailpipe emissions?

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