Question about 1994 Jeep Grand Cherokee

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My 1994 jeep grand cherokee just failed emission test on nox test,I was told it was probably a bad erg valve. I can't seem to find the valve on the 4.0 six cylinder. my book seems to show it on the exshuat side of the motor just below the intake manifold.I don't see it.

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The valve is on the intake manifold right below the vacuum port that leads to the brake booster. very weird looking and not like most but there is a large vacuum switch hooked to it so look for the lines going to it.

Posted on Dec 04, 2009

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Before taking it for retest give it some welly in low gear that should clear it without any ajustment just needs a good blow out

Posted on Nov 12, 2009

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