Question about 2002 Mercury Sable
My check engine light is on and when I got the codes it said that it could be the EGR sensor and/or valve. I'm pretty clueless, where are these parts located? Are the fairly easily replaced?
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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Posted on Jan 02, 2017
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MAP Sensor TESTING
See Figures 1, 2 and 3
Fig. Fig. 1: Typical Manifold Absolute Pressure (MAP) sensor wiring diagram (wire color, terminal identification/location may vary on certain models)
Fig. Fig. 2: Using jumper wires and a high impedance voltmeter test between MAP sensor terminals A and C with the key ON and engine off. The voltage should be approximately 5 volts
Fig. Fig. 3: Next test between MAP sensor terminals A and B with the key ON and engine off. The voltage should be approximately 0.5 volts
EGR test: requires a GM scan tool:
Linear EGR Valve
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