Question about 2002 Mercury Mountaineer
Check your Inertia sensor for reset. It is usually behind a front kick panel or in some cases, at the rear cargo area next to the air ride switch. Sometimes knocking around on the other parts will activate the Inertia sensor.
The crankshaft sensor regulates fuel pressure by RPM. A failing Crankshaft sensor will under count the RPM resulting in low fuel pressure and poor performance.
Posted on Dec 27, 2013
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Posted on Jan 02, 2017
SOURCE: egr problem
Check the passages under the airhorn. When carbon builds up the diagnostic blames the EGR for not opening and throws a code. Actually there is no flow to the EGR because the port is clogged and the diagnostic measures the flow after the EGR.
They really needed to have a sensor before and after the EGR. Also remember to disconnect the battery for 10 minutes to remove old info.
Posted on Sep 24, 2009
SOURCE: EGR Sensor/valve replacement
The EGR is a three part series; the valve, soleniod, and sensor. They are fairly easy to change, a few hours with a buddy. They are located on the top back, center of the engine. Take a look you will see something that is small and cylinder like with a wire connected to the top, that is the vavle. I would replace all three at once as they are all together and you have to take of one to take of the others. The total price will cost you about $250 in parts. However, you must know your engine type on the Sable/Tarus as the parts are different per engine.
Posted on May 02, 2009
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