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What do u mean: if we reached TDC and then we will connect the tool with the air supply - u sayin the pressure will push the piston down??? How to know if there's a leak or just valves got open???

the last test of taking off the radiator cap is excellent-that idea wasnt in any of the many videos i have watched so far-good job

Many thanks. Lovely lesson. I have changed the head gasket, and I'm not sure what I did wrong. Cylinder 1 has 100 PSI, and cylinders 2, 3, and 4 have very low PSIs. The head cylinder was rectified. I can see the difference more than 2 mm short on one side. The engine will start and run for approximately 1 min. after it starts shaking and stopping. It will start only when it's could. After it won't start again. Can somebody help?

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Hi my name is Brian Mckie how are you doing today I want to talk about you is ok with you and good morning to you babe

Thank you so much! I have a good multi-meter and a micsig ato1004; I know how to use them, but I didn't know how to explain the difference to my trainee. He saw this video with me and now he gets it! Great job and thanks again

Hello there...

So basically a state inspection?

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awesome content. clear and straightforward...

6:36 is it acceptable to install the fly wheel lock when doing this to prevent rotation?

Try putting it in gear and putting the hand brake on .

My engine only shakes after warming up. Can someone tell me what it might be? I know there are some smart people here. The vehicle barley moves when pressing the gas, smoke or steam coming out of the exhaust pipe, etc. The water pump went bad and I replaced it. I think I had a blown head gasket. I used gasket sealer and the smoke reduced almost completely but when I first turn the vehicle on a puff of smoke comes out. No check engine light. The temperature guage does not go up enough when my scan tool shows a much higher temperature. The engine is knocking. When I remove the upstream oxygen sensors I hear something like clunking or air quickly releasing from the exhaust valve when it shouldn't, on the side that shakes the most. I would really appreciate advice, suggestions, etc. Thank you.

love your vifdeos as an auto tech student please make more

I noted that my Precision Instrument torque wrenches specify the correct units of measure: LB-FT and LB-IN. Being a college mathematics and physics tutor, it is so annoying that most tool manufactures conflate measures of work with measures of torque--even Snap-on [1]. Thanks for educating your audience, by getting it right, Laura. [1] "Why doesn't torque have the units of joules?" on the "Logically" YT-channel

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I definitely wish there were more women in all the trade industries. I think women tend to be more detail oriented and are perfect for these fields.

One cannot find out whether there are worn or broken oil rings by compression and leak down test. Are there any ways to find this out without taking the engine apart.

So is a multi point inspection the same thing as a diagnostic test ?

At long last

Thanks, that was helpful

Never put anything through the hole of your spark plug while you're turning the crank😂 bits of the plastic from the dip stick can break of inside the combustion chaimber or you can damage the thread.

It really has been a few years since you've posted a video. I'm a carpenter, and I think it would be nice to see women join the trade and get to a position like where you both are in the automotive industry. Thanks for the great informative video. Also, I learned something new and important from your 'Shorts' on resistance. Thanks.

Using the dipstick is such a cool idea!

Very Clear video, learned a lot very easily helped me make a decision as to buying a tester or sending the car to the garage.

👍👍👍

Use a glove or balloon to check if air escapes

Here's a trick, put a latex glove over the exhaust pipe and see if it swells up then u got leaking ex valves. Put it on the dip stick tube also. If the spark plug hole is on the side of the head don't use dip stick you can bend it. Use a stiff piece of wire, and keep checking it does no bind before TDC.

This is extremely well done and does a great job of thoroughly explaining the steps! Well done!

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why is the car so gigantic? why are the turn signals red? they are supposed to be yellow.

Good and clear. I like the dip-stick trick. On the old British cars that I'm used to the spark plugs come out of the engine at an angle to one side so the piston can trap the long skinny screwdriver that I use, or the dip-stick that you showed us. It'll be fine if you just nurse it upright before it pinches. Good vid!

4:49 You're not setting it to 100 PSI, you're setting it to whatever pressure puts the right gauge in the SET zone

Cute ❤ intelligent mechanic thank you

How many hours do you need to do this task?

Were you self taught fixing cars or schooling

That's a BIG truck are just a small lady 😅

Congratulations. Excellent explanations.

Informative video thank you.These leak down tests appear to be mainly carried out on petrol engines . Could you please tell me if the green yellow and red bands would also apply to a diesel engine if the same test were carried out using the appropriate adaptors ?

💜 Laura

Good stuff

Thank you for sharing

Go Laura !

Thanks Laura

So if it was a piston ring would the engine smoke? Or would the spark plug be fouled with oil?

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