Chill man, Just some good piece of information!

Glad you enjoyed it

Thank you for your kind words. They serve as motivation for us!

Pressure Switch: bypass me to turn me on

The way I learned is to very briefly short out the low pressure cutoff switch - you can unplug the connector and stick a paperclip in between the two contacts. Be very careful doing this and do not leave the jumper in place for more than a few seconds. DISCLAIMER: I am not responsible if you ruin your A/C system. Or just take it to a pro.

You have to jump the ac compressor relay,use a fusible link rather than paperclip

What about diesel engine car?

Yeah, with them banning 134a, it looks like we'll be going through this all over again with another refrigerant soon.

Thank you for your feedback. We apologize for the inaccuracies and the lack of clarity in the video. We recognize the importance of differentiating between 2-stroke and 4-stroke engine components and explaining their functions properly. Your points about the crankcase and the differences between these engine types are valid, and we appreciate you bringing this to our attention. We are committed to providing accurate and informative content and will work on creating a more detailed and clear explanation in future videos. Thank you for your understanding and for helping us improve.

@@studentlesson Thank you for actually reading my comment and replying. I know that many people struggle to visualise how an internal combustion engine works, and I feel like trying to imagine a piston rotating would only make that visualisation process more difficult. A good place to start with engine education is to start at the heart of the engine: the crankshaft. Explain what it does and what’s attached to it and work backwards from there. It’s much easier to understand that than it is to work from the head, injectors, valves etc down.

Thank you for pointing out the error in our video. We apologize for the mistake during the scripting process. You are absolutely correct: pistons in a typical internal combustion engine move up and down and do not rotate. The force from the piston's linear motion is converted into rotational power by the crankshaft. The only exception is in the case of a Wankel/rotary engine, where the 'piston' is actually a rotor that rotates inside the engine. We appreciate your understanding and hope that despite this error, you found the rest of the video helpful. Thank you for your feedback, and we will ensure greater accuracy in future content.

Thank you 🙂

Yes. The thing is not all car problems can be fixed by a DIYer. Professional hands are necessary

I'm glad it was helpful

Me either

Great to hear!

You're welcome

Just because you don't, doesn't mean people aren't driving cars with R12 system. You're also not aware of the number of people requesting for this content.

@@studentlesson I've got an 84 K20 Chevy and a 94 Corvette never needed anything newer and I've been a mechanic for 40 yrs. Do a video on installing AC in a car that didn't come with it. I've done that too. don't take it personal, but I don't see that many cars on the road that still run R12 except for the one I'm driving.

No new cars have R134a. Its being banned and phased out. GM cars newer than 2015 don't use it.

low refregerant. vaccum and recharge again. if the compressor is clicking then system is functional and just low on freon.

Did you fix it ?

If the caliper piston is dragging even after replacing the rotors, pads, and caliper, there are a few potential causes: Brake Hose: The brake hose might be collapsed internally, causing fluid pressure to remain in the caliper and keeping the piston extended. Inspect the brake hose for any signs of damage or collapse. Caliper Bracket: The caliper bracket could be worn or misaligned, preventing the caliper from retracting properly. Ensure the caliper bracket is securely fastened and aligned correctly. Master Cylinder: The master cylinder could be failing, causing excessive brake fluid pressure to remain in the caliper. Check for any leaks or signs of malfunction in the master cylinder. Brake Lines: Check all brake lines for any kinks, restrictions, or damage that could be preventing proper fluid flow and release of pressure. Pad Slides: Ensure that the brake pads are able to move freely within the caliper bracket. Lubricate the pad slides as necessary to allow for smooth movement. Rotor Thickness Variation: Even though the rotors are new, there might be excessive thickness variation, causing the pads to drag. Measure the rotor thickness at multiple points to ensure it is consistent. Improper Assembly: Double-check that all components were installed correctly, including the caliper, pads, and hardware. Even a small misalignment or incorrect installation can cause dragging. If you've ruled out these possibilities or need further assistance, it might be best to consult with a professional mechanic to diagnose and resolve the issue effectively.

@studentlesson those are all great ideas, it's funny ,the dragging didn't start til I had new rotors put on, but my old ones were warped. 🙏

Thanks for watching

You're welcome!!

It's easy to change yourself. But you will need a way to pull a vacuum when you're done. Harbor freight sells least expensive air compressor hose fittings and the compressed air ran vacuum pump.