Testing the COP coils in her 3.0L Ford to escape (or 3.0L Mazda Tribute) deserve to be a challenge, because three that them room under the input manifold plenum (this write-up can be used to several various other 3.0 Ford models).

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The 3 that room underneath the input plenum room the COP coils for cylinders #1, #2 and #3 (cylinder #1 is the one closest come the serpentine belt).

These three have the right to not be conveniently tested favor the persons that space on the engine financial institution that is closest come the radiator.

Well, in this article, I"m gonna" sell you a an extensive testing strategy that"ll assist you gain to the bottom of the misfire on her 3.0L Ford escape or 3.0L Mazda Tribute.


Contents of this tutorial:


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friend can uncover this indict in Spanish here: Cómo Probar ras Bobinas De Encendido (3.0L Ford Escape) (at: autotecnico-online.com).

Important Tips and also Suggestions

TIP 1: although the main emphasis of this article is experimentation the COP coils on a 3.0L Ford escape (3.0L Mazda Tribute), the tests use to the vehicles provided in the ‘Applies To’ crate on the 2nd column (since these vehicles likewise have the COP coils because that cylinders #1, #2, and #3 underneath a plastic input manifold plenum).

TIP 2: The fuel pump relay requirements to be removed prior to testing the COP coils for spark. This is a security precaution that will avoid the engine indigenous starting.

The photo of the fuel pump relay (in the fuse box) in this write-up is that a Ford to escape (Mazda Tribute). You can see this picture here: place Of The Fuel Pump Relay. If your vehicle is not a Ford Escape, you"ll must consult your owner"s hands-on or a repair hands-on for the location of the fuel pump relay top top your certain vehicle.

TIP 3: trial and error the COP coils on her Ford Escape might require removing the top component of the entry manifold (known as the input manifold plenum).

TIP 4: once removing the plastic entry manifold plenum, you"ve got to it is in extra mindful nothing drops into the open intake manifold ports.

Once the plenum is turn off the entry manifold, stuff clean rags into the 6 open ports to prevent any type of foreign object (like a bolt) native falling inside.

Symptoms the A negative Ford escape COP Coil

The most typical symptom the a poor COP ignition coil on your Ford escape is a misfire condition. What ‘throws a wrench right into the works’, is the the misfire problem sometimes doesn"t collection a diagnostic trouble password (DTC).

You may likewise see one or an ext of the adhering to symptoms:

Check engine light is on through one or numerous of the following DTCs :P0300: random Cylinder Misfire.P0301: Cylinder #1 Misfire.P0302: Cylinder #2 Misfire.P0303: Cylinder #3 Misfire.P0304: Cylinder #4 Misfire.P0305: Cylinder #5 Misfire.P0306: Cylinder #6 Misfire.Rough idle.Bad gas mileage.Excessive tail-pipe emissions (pollution).A "rotten egg" smell coming from the tailpipe.This smell is brought about by unburned gasoline from the misfiring cylinder overloading the catalytic converter"s oxidation process.Engine misfires under load. In other words; the engine start to miss as you provide it gas.

What Tools do I have to Test The Ford escape COP Coils?

You"ll test and diagnose the ignition coils top top the automobile or truck with some very basic tools. You"ll need:

A 12 Volt automotive check light.A multimeter.An HEI spark tester.You"ll require a helper to help you crank the engine while you execute the tests.A fix manual.For any remove and replace details that i don"t covering in this article.

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A scan device will come in handy to read any misfire diagnostic trouble codes stored in your Ford Escape"s PCM"s memory but to check the actual COP coils -You carry out NOT need a scan tool.