How to I check to see if the diverter valve is working on a 1998 ford taurus se v6 3.0 ohv?

1998 FORD TAURUS
97,000 MILES
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PEPTALK4FEEZLE
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Secondary air injection. Upstream flow detected. I have removed the front diverter valve to see if it is functioning properly. And if not the diverter valve, how do I get to or check the gulp valve?
Mar 17, 2012 at 9:06 PM
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SATURNTECH9
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See if you can blow thru the divertor valve without it being activated?Thats where i would start.
Mar 17, 2012 at 9:18 PM