This guide will help you resolve the misfire in any of the cylinders in a Mazda Tribute 2001 4x4 6 cylinder SUV. I fix it when an expert could not do it. I end up paying $800.00 for nothing. Hope this help you.

  1. Start removing all the mark parts in red circles. (upper bolts from the intake manifold,hoses,vacuum hoses,filter tube,etc)
    • Start removing all the mark parts in red circles. (upper bolts from the intake manifold,hoses,vacuum hoses,filter tube,etc)

  2. Remove the connector from the PCM
    • Remove the connector from the PCM

    • The ignition coil should get around 1.5 volts to work (at least in my truck) this will change constantly due to the cylinder position. Measure between using the two cables from the coil pack connector

    • The cylinder fire like this: 1,4,2,5,3,6. So if you don't get the voltage and you get half 0.542v this mean the any of the cable running from the coil to the pcm is broken (most common problem is in the pcm due to the position)

    • First measure the voltage from all the coils. If you get around 1.5v in all of them we will start replacing the coil pack. ej misfire cyl #1 - we place coil pack #1 in cylinder # 4 - this is to make sure you have a bad coil pack.

    • Test for continuity from the bad cylinder (coil pack connector the pcm) all cables have different color so it will be easy to identify. (most of them are in the right corner)

    • In case you don't get continuity this means the cable is broken. ( use a jumper till you get continuity) test the connector with the jumper cable connected. Assembly the intake manifold and re-test.


To reassemble your device, follow these instructions in reverse order.

7 andere personen hebben deze handleiding voltooid.

Josue Valentin

Lid sinds: 17-09-13

319 Reputatie

1 Handleiding geschreven

Hello I have a 2001 mazda tribute es v6 and cannot get it to run the right way, it was fine tell I decided to wash the engine and the girlfriend took it for a drive short after, I have replaced the coils, sparkplugs, some of the sensors and clean everything related, can anyone help I'm ready to throw the towel thank you

echa9750 - Antwoord

echa9750, have you tried replacing the manifold gaskets? if you did plugs and coils, the upper intake manifold gaskets might want to be replaced now. also with the age, the valve cover gaskets probably need replacing too. i did mine and it seemed to make the engine run better. I dont know why but my guide to do upper intake manifold replacement on this website is not complete. Complete guide is here:

and full guide for valve cover gasket replacement is here:

Nathan Stanley - Antwoord

Swap the 4 and 6 wires to the coils see what happens

teresa420 - Antwoord

Great stuff, question, when I was removing the intake manifold, apparantly one of the bolts was not “captive” and I heard it fall, I am confident it went down, because I heard it hit various places in it’s trajectory then I heard it hit the garage door grate. I’ve searched considerably and not been able to find the bolt, any idea where I can purchase a replacement?

Gordon Campbell - Antwoord

Happend to me too. I just went to the local junkyard and they charge me a buck plus other parts I needed. Or eBay, make sure the location is US so shipping doesnt become an issue. Hope this help Good luck

Josue Valentin -


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