Thanks Oscar! Welcome to the channel.

Ac compressor having less suction. Replace Ac compressor assembly

You can get one from several sources but the main one is Techno-Tools. Here's the link: www.techno-tools.com/products/evdc100

That's interesting...at first, I would think the engine speed was the factor but since you tested AC operation at different RPMs, I think the next thing I would do is monitor ECM PIDs with a scan tool to see if there is an input that is falling out OR a pressure sensor signal is failing to report or report correctly. Start by monitoring the variable solenoid PID and the AC PID to see if the ECM is turning it off or failing to adjust the solenoid under load.

@@MotorAgeMagazine Thank you sir. I have checked the voltage of 12 vdc to the compressor. it was a turn off from the ECM.

change of swash plate angle to increase compression ratio, condenser fan motor start.

It could also engage the magnetic clutch. Some manufacturers still use clutches on VD compressors to reduce consumption when not in use

First of all, MotorAge Magazine is not a publication that is targeted for the "backyard mechanics". This was a solid piece about variable displacement compressors. I know Pete well and he is highly respected in the professional arena. Pete does not need to retire to make way for an "equally knowledgeable younger guy" that can water down a complex subject for the backyard mechanics like you.

@@GearheadSchool lol. The this with a grain of salt! The fact that you took offense, to a viewer who simply gave an opinion on your video content and that you read into it what was in your mind, is fact that MOTOR AGE staff, Has reached maturity and is ready for the nursing home. I simply commented that you gave no real diagnosis of the problem, which was stated at the beginning as, customer comes in with complaint that system just isn't cooling any more like it used too. Let's see what's wrong! I simply suggested that you find a younger guy similar in knowledge...(that actually meant Pete is smart. In fact I like Pete). That was your first mental mistake. Then I suggested that you throw in more of the actual diagnostics, were I said for Backyard Mechanics (because you can't control who reads your magazine, but it's now known that you really don't even care that they as people, even exist) and me saying that triggered that big old brain again, who is better than any commenting backyard mechanic out there and can't admit there is anyone more knowledgeable. Your both highly respected individuals, but your letting your darn age and mentality affect the ability of your videos to actually help mechanics in the industry, with a real diagnosis of that ac system. I was going to stop there, but I'll add this in to boot. Backyard mechanics I respect, because I respect everyone. I've retired from a life fullfilling career as a SAE certified mechanic in all categories, and from paying the bills as a major shop owner, now selling my business, only to be asked to remain as consultant to the young new owners! FYI my old grey beard probably forgot more than both of you ever learned. I do think outside the box, and I evaluate videos and comment accordingly, with constructive criticism, where as you two well respected individuals, can do nothing but explain how things operate and criticize anyone who you feel in your brain, has upset the routine your stuck in, by giving you their God honest and not bashing opinion. Which is what I did and we'll see how long you keep this rebuttal to your response visible. I'm guessing a month at best, because it upset you when it shouldn't have! Oh and by the way, you better open that car door and let out your customers, because they are about to melt in there, without working ac, even though the variable displacement compressor has been explained. Good day and God hope neither of you get the Corona virus or you'll be telling the doctors their diagnosis wrong. Man you better than everyone and think you know it all old guys (lol I am one) really torque me. (But I'm glad I'm not that kind). Amen. Jpol.

I agree with gearhead. Your comment sounded like a butthurt DIY backyard mechanic. Pete isn't old, he's a sharp guy giving his experience to the next generation. He went into how to diagnose a siezed compressor, and checking PWM signals. Let's be honest, the age of DIY is dead. No DIY is going to invest in a bi-directional scan tool, scope, alldata, identifix, a/c reclaim machine, special tools, etc. A lot of shops around here don't want to do it. I still see shops subbing out alignments because they don't want to invest in equipment. I hope you weren't one of those shops.

The entire topic of AC can't be disclosed In a "easy video for backyard people to understand". Reasons as to why he specifically narrowed the topic of the video to one compressor type, and its operation, how to see if it's receiving the input it should and what it looks like. I think that's all you really need to know on the topic of variable compressors. Everything else should be knowledge you already know, or you can find elsewhere.