EGR Systems
Mazda 626
Mazda Protege
Ford Expedition XLT

Where is the EGR valve on a 1993 Mazda 626?

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2008-11-18 00:20:33
2008-11-18 00:20:33

if its on a V6 2.5, its about a feet under the throttle body. on the back of the cylinder head near the firewall (right head). there is 2 bolt (12mm ratchet socket) and the exhaust tubing (3\4 or equivalent in metric key would do the job). It might be seized if no anti-seize have been applied last time it got checked up so be patient and don't break anything;). you'Ve got to disconnect the negative pole from the battery (if equipped with anti-thief system remember to have the code in hand!!). then you get the fresh air duct (from front to throttlebody) removed, you might have more space if you remove the throttle body and if you do so, remove the throttle wire carefully. the you might have access to the vaccuum and the connector then unbolt, 2 bolts dans exhaust tubing, then clean it and to it all in reverse for installation. (you dont have to strip the head with the bolts, just get it firmly thight.(don't forget to apply anti-seize on the exhaust tubing!)

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