Discover How To Test Your Entire Ignition System With One Simple Tool 

1988 4.3 s10 no spark

I appreciate your comment and thanks for watching.

I really appreciate you taking the time to write such a nice comment. I thank you and you're welcome again.

That is great to hear. I'm glad I could help you out. Thanks for watching and I appreciate your comment.

Hello Antonio, did you understood this guy, I only catched like 70 percent, I need help bro. How did you check the crankshaft sensor which side connector I check the one coming from the computer or the one coming from the sensor, also I do not know which pins, I do not want to burn my computer as you know that is very sensitive, I have a 1997 mercury mountaineer 5.0 engine do you know what pins by any chance? Also I did not understood how he test the ignition control module from the connector coming from the computer or from the module itself which plug I need to test I could not see where those test lights were connected to because he mention to turn the key and start the car. Can you explain me in a better way bro. I speak spanish also, please explain me if you have time to help me, thanks in advance.

Let me know how it works out for you. And thanks for watching.

@@oxmanagain The two prongs for the middle coil do not light the test light. So I am assuming the ICM is bad. Does that sound correct ?

@@stevehughes1250 Was it the ICM?

@@ianvav As I recall, the water pump had a leak and was slinging coolant on to the ICM and it had gotten past the seal on the wiring connector. We dried it out and replaced the water pump. 😀

I appreciate the compliment. I just like having stuff, the more stuff the better. But I do agree.

It could be dark.

If you want to test the boot you can do it both ways. To just test a spark plug I took the spark plug out of the engine put it back into the boot put a jumper cable on to the battery and then on the spark plug and then apply Power by cranking the ignition to see a spark was coming out of the plug.

That is correct.

@@oxmanagain not true i have spark and my icm is faulty makes it run like dog poopie when its warm

Ohm or resistance symbol or horse shoe. K is for 1000's

A bad ignition control module would affect all the cylinders. You might have an issue with the rings on the cylinder head in that particular cylinder. If you have white smoke coming out that's an indication that there's oil or some substance in that cylinder. You might want to try one of those poor end products that coats the lining of the cylinder or seals it. I've had success with those in the past

@@oxmanagain thanks for the speedy reply. can you recommend a brand or product?

Starter

Also the car has no codes

It sounds like it could be an issue with the ignition control module. Mine literally was it wasn't screwed down tight.

I appreciate you watching. Thanks

Did you figure it out

@@bluckq hi, Yes I did. Bad fuel injectors would give the same symptoms. I found 3 bad fuel injectors. There are youtube videos on how how to test fuel injectors using a car battery. One I replaced those it worked fine. The 3 fuel injectors were on those same 3 coil packs.

Yes you can. If you get a book it will walk you through the steps because each car might be slightly different

@@oxmanagain ok tx i thinx i buy a tool like u have, that 12v lamp look easier.

@@oxmanagain I have one more question, could an ignition coil be broken if the resistance is still ok?

If the resistance is good I don't see how the coil itself could be bad. You might want to also check the ignition control module (ICM) if you think it's an ignition problem.

​@@oxmanagain its is a ignition problem i get no spar. I was out riding and the motorcycle just stopped, then when I tried to start it suddenly there is no spark, I don't know what it is, I have measured with a multimeter, ignition coil, spark plug, the lights are on, everything seems to be ok. Have searched and searched online and tested a lot so I thought maybe the starter coil broke anyway, otherwise I don't know? the ignition lock or earth fault maybe? What can cause the spark to suddenly disappear? from working perfectly fine to then dead

I tested everything and that was the only thing that failed. That is how I knew it was the crank sensor. I changed the ICM, the spark plugs wires and plugs, the coils and the camshaft sensor. The only thing that was left was the crank sensor.

@@oxmanagain Awesome thanks for replying, I watched were you said test the crank sensor plug i assume you just unplug it from the crank sensor to test it and then you said have someone crank engine while you prode both terminals with ACV turned on and you should see 200 millivolts typically and i assume when you did that test yours did not originally read anything and thats how you knew it was the crank sensor?

That is right.

Hello Mary please explain me how to test the crankshaft sensor, which side he tested, the wires coming from the computer or the wires coming from the sensor, I am sorry I do not get it, what I understand is if the crank sensor is disconnected how can I test it when he say crank the engine, can you please explain in a better way I want to understand, thank you.

You're welcome and thanks for watching.

I have been thinking about your car. Did you get it to start?

@@oxmanagain going to junk the car soon. i did everything... all good things come to an end. Thanks

@@patrickmacalalad9921 I fully understand and I have been there. Sometimes moving on is the best thing you can do. The good thing is you've learned what to do for the next time you're in a situation. I appreciate your time and you enjoy the rest of your day.

RU-vidr Thanks for watching/commenting.

Good point, thanks.

You're a hundred percent right there is a spark tester to test it in circuit and that's the best most accurate way

Hello Joe, can you send the name of the tester and where to buy my friend, I want to do it the right way, please help me hopefully you have the part number, thanks in advance.

​@@yaniraleiva6314 You can get them at harbor freight for cheap.

You're welcome and thanks for watching. What exactly was wrong with your car?

Have you looked at your icm?

@@oxmanagain thnks, that fixed it new module

I'm glad I could be of service. I'm glad it helped you out.

I would check your icm ignition control module or crank/cam sensors.

Have you tested both of them? I have had to replace my cap multiple times, but I've only replaced my distributor once. The distributor is a pretty big job because you have to line it up correctly once you take it out.

@@oxmanagain I can't even find any clear instructions on how to test the ICM or pickup coil in the distributor

What are the symptoms your vehicle is having?

@@oxmanagain crank no start. 91 S10 4.3l

Do you have any check engine lights on?

Did your OBD scanner come with a book or manual? And do you have the book on your car?

@oxmanagain yes I the owners manual for the car I don't the packaging or stuff that came with the scanner it was a cheap one with the app you use but there's no codes the car just got lack of power stumbling on acceleration vibration at res light its getting about 29mpg when it should probably be getting 34

@@paulleblanc3301 it is probably a fuel issue. Did you try pouring in a fuel treatment to see if that makes a difference? If it does you now have an idea of the direction to go in

@oxmanagain no I haven't yet I ill trying doing that today and I'll get back to you once again thank you for messaging back so quick

1 if your check engine light comes on, 2 if your car has any hesitation or running rough and 3 if you ever hear any noise from the engine you might have a leak somewhere.

No starts

I will have to do some research for you.

89 K1500 Scottsdale... 2 fuel pumps replaced in less than 6 mos., turned out the old metal tank was rusted enough it was depositing little snowflakes of red death and once they mixed into the fuel that was enough to clog the FP. IF you still have the og metal tank, probably a good idea to change bc after 30 years, it's definitely rusty! Just make sure you replace it with the same size. The guy I had do it did not and at approx. 12mpg I sure do miss my old 25 gal capacity! Another culprit of rust/fuel and clogged FPs is the filler neck, if you still have the og one, after 30 years...! Also, may want to (VERY GENTLY) inspect your injectors to make sure they aren't clogged or obstructed resulting in to little fuel. If these few things aren't it double check your ground wires (battery to frame-block to frame-intake mani to engine compartment... to name a few), again, after 30 years LOL hope this helps! Good luck w/your sh!tty chevy, I know how much I love mine!!!

Bad fuel filter maybe?

Sounds like something to do with the fuel system or maybe the ignition system

I would check the battery.

@@oxmanagain lol right wht a dumbaz

Haynes manual Pontiac Grand AM I put a link in the description below the video.

oxmanagain thanks dude!

You're welcome, no problem.

laughing in adbloker

Thanks haha.

@@lucasknie5999 thank you

Hello Lucas, one question what I need to test the plug coming from the computer or from the crankshaft sensor, the car has to be on the on position or running, I have a 1997 mercury mountaineer 5.0 do you know how do I test the crank sensor, please help me my friend, I did not understand this guy very well. He made the video too fast for me. Please send me some info to understand better, thank you in advance...