2013 Silverado Ignition Coil Resistance Testing - Bad Coil Causing Engine To Miss While Idling

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2013 Chevy Silverado Ignition Coil Resistance Testing - Bad Cylinder 1 Ignition Coil Causing Engine To Miss While Idling
Testing ignition coil resistance using a multimeter. This is the third or fourth coil that has gone bad on cylinder one. I'm not sure of the cause.

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10 дек 2022

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Комментарии : 13

@gettinglucky 3 месяца назад

found your video trying to figure out the same problem on my 2005 Envoy 5.3, also cylinder 1

@OLDAD_ 11 месяцев назад

Thank you !my truck is doing what you described right now

@douglascunningham1840 9 месяцев назад

Check your fuel injectors for being plugged up.

@user-pb6ky1tc2i 9 месяцев назад

I have a degree in electronics. As a such I've learned that electronic parts do not like or survive in an high heat environment. Therefore, anytime there is an electronic part close to, say an engine compartment or an engine block, the electronic parts WILL fail. I've seen the electronic schematic of these coils and they contain a "power transistor" and, at least, one diode. Those particular parts are susceptible to extreme heat (engine compartment) and are not "heat-sinked" AKA cannot dissipate heat from the electronic circuits that exist in those coil packs, e.g. the transistor and/or the diode. As a result, given time ( albeit semi-short) those components will fail. I had a similar situation with a fuel solenoid driver on a diesel truck. The FSD pack (fuel solenoid driver pack that had power transistors) was not "heat-sinked" properly from the manufacturer and as a result the engine would die. The fuel pump was fine but the FSD failed due to engine heat that the electronic parts could not handle. I'd guess many vehicle manufactures' do not address this problem effectively. These coil packs are mounted on the engine block and may fail prematurely given the high heat environment.. With that said, there are still plenty of vehicles that are still amble, so... When i've looked at these such coil replacements there seems to be a replacement packs of eight for both sides (or banks) of the engine. Why? Your interest is as best as mine. Note: Keep electronics cool.

@toxicwolfgaming2972 4 месяца назад

Since electricity transfers its energy to heat too, lol

@MrMuskokaDD 2 месяца назад

Hello. did you find out the root cause to the #1 coil always going bad? I'm having the same issues

@mchenrykramer 2 месяца назад

No, I never found the source of the issue. However, I did have a lifter tapping that I have wondered whether it was related or not because I have seen videos and read where the valve cover oil channels can foul up and prevent proper lubrication of lifters. I used Marvel Mystery oil mixed in with my oil change and the lifter stopped tapping. It has not started tapping since. Coincidentally, I have not had a coil go bad either. However, that is not definite proof that the coil issue was related to the lifter tapping issue.

@ChippyOutdoors 4 дня назад

@mchenrykramer ya i been trying to trace what I think is a bad coil pack getting heat soaked on hot days but I'm not positive but also have a lifter tick. Lifter tick /collapsed lifter is just getting replace and dod delete and a few other things since have to pull heads. Know what they say if your going to do it mid as well it right the first time lol

@mchenrykramer 4 дня назад

@@ChippyOutdoors that's right! Since using MMO and doing the delete, I have not had to replace another coil and no lifter ticking.

@electric8668 5 месяцев назад

Have you changed the spark plugs?

@mchenrykramer 5 месяцев назад

Prior to this, I have changed all spark plugs. All eight. I change the spark plug associated with the coil every time I have this issue. I do wonder if the situation exists that either the spark plug is causing the problem with the coil or the coil is causing the problem with the spark plug. I have read where there's a possibility that restricted oil flow because of fouling in the ports in the valve cover to the cylinder that leads to the issue is causing excessive heat because of a lack of lubrication to that cylinder which kills either the coil or the spark plug..

@electric8668 5 месяцев назад

@@mchenrykramer Then you must consider it could be a bad ECM/ECU.