Mercury Grand Marquis EGR Valve Replacement Cost.

The average cost for a EGR Valve Replacement is between $367 and $421. Labor costs are estimated between $61 and $78 while parts are priced between $306 and $343. Estimate does not include taxes and fees.
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Learn More About EGR Valve Replacement Cost

Best Practices

The entire Mercury Grand Marquis EGR system should be inspected and cleaned (if necessary) when an EGR valve is replaced.

Common Symptoms

Problems with the EGR valve can trigger trouble codes, which will cause the Check Engine Light to come on. The vehicle may also fail emissions tests.

EGR valve problems can cause the Mercury Grand Marquis to idle roughly.

Most Common Mercury Grand Marquis Repairs

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