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Real-World Repairs for Real-World NOX Failures 200

Art;

I think Phil is saying the opposite:

There was lots of speculation about plugged radiators and bad fan clutches or electric cooling fans and their effects on NOX. Perhaps someone will prove an exception to the rule, but here is one tech that has never achieved a NOX reduction by performing cooling system work.

Regarding intro of air into exhaust, I also find that hard to believe. On a 4 cyl, for ex, wouldn't there always be pressurized exhaust in the pipe?


--
Norm Cook Vancouver BC; 1989 745T 202,000KM






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