Question about 2002 Ford Escape
How can I test the ignition coils for a Ford Escape V6 3L with individual coils. I need the resistance values to verify functionality. It is not giving any bad code at the moment. Spark plugs were change. Starts OK, but when the gas pedal is pressed the engine stalls and dies. Any suggestion will be appreciated. Thanks in advance
Not a coil problem. clean/replace your mass airflow sensor.. if YOU can.
Posted on Sep 14, 2008
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Posted on Jan 02, 2017
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Are the plugs installed because without compression you will not get ignition/spark.
Are there any codes set???
Is the ignition fuse okay??? Is ECM fuse okay?
Of course first you need power to the coil which should be there whenever the ignition and run switches are on if so see below:
Are the plugs installed
Remove the coil. THEN set your ohmmeter scale to RX1 and place ohmmeter leads on the primary coil windings A (front of coil) to B (middle of coil), B to C (front of coil) and check for primary coil winding resistance which normal resistance range is 0.5-0.7 ohms. If primary resistance is not within this range check out test results below.
Ignition Coil Secondary Circuit Test
With the ignition coil removed from the motorcycle and the ohmmeter set to the RX1K scale place the ohmmeter leads on the secondary coil windings B (middle terminal) to
R (rear secondary terminal/socket), B to F (front secondary terminal/socket) and check for secondary coil winding resistance which normal resistance range will be 5.5-7.5K ohms. If secondary resistance is not within this range check out test results below.
A low resistance value indicates a short in the coil winding which requires coil replacement.
A high resistance value might indicate that there is some corrosion/oxidation of the coil terminals requiring the coil terminals to be cleaned and the resistance test then repeated and if after the test is repeated the resistance is still high after the terminals were cleaned the coil must be replaced.
If there is an infinite ohms or no continuity) resistance value the coil is open and must be replaced.
If you have spark, it sounds like either the sensor in the timing cavity of the engine is bad or the electronic ignition unit is bad.
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