Before You Load The Parts Cannon….

48 thoughts on “Before You Load The Parts Cannon….”

1. I always explained voltage drop like a bath tub drain that forms a whirlpool, voltage has spinning electrons like a whirlpool with water, those spinning electrons can be measured like eric did and the electron whirlpool is visible. The battery is a bucket of water, the alternator is a water pump, and the wires are garden hoses, resistance is the water nozzle set to full flow,mist, shower. Being able to visualize invisible current flow becomes easy when thinking of water flow.

2. I never seem to have easy fixes like this

3. Another great job by Eric.

4. It's interesting watching you work down the troubleshooting tree to resolve a problem. I had a couple rounds ready to load in the cannon–oh well. Thx!!

5. I trained troubleshooting for a large corporation and Eric puts on a masterclass for what we called Inductive vs. Deductive reasoning. Eric uses Deductive reasoning. He starts with a clean slate and follows the evidence using a logical troubleshooting tree. The parts cannon guys are working off of stock knowledge and jumping to conclusions based on what they have seen in the past, with no real evidence before them. I can't imagine how many parts are replaced when there is no evidence to support condemning the part.

6. A lot of component problems will take you to a bad ground Eric does such a good job circuit testing really good point to isolate and test , Eric you the man !

7. First thing I was taught 50 years ago about auto electrical problems. Check the ground! Some things never change.

8. Thank you Erick for this example…diagnostic rules and experience follow. You ROCK! DVD:)

9. The worst A.M maf is the one that's skewed and car runs lean or rich and someone put all new o2s they got from Amazon for 13 bucks and when that still didn't fix it they put new injectors from ebay for 15 bucks for a whole set and then wanna piss and moan when the diagnostic fee is 2.5 hrs then ask why the parts I use from the dealer are so pricy and that Iam one of those evil shop owners trying to rip them off .and they have another friend that is gonna do it for them.and that is why I love being a auto shop owner but for every one of them I have hundreds that are great bet that never happens to you
   😂😂😂😂😂😂 have a great day brother

10. Exceptional video! Thanks Eric!!!

11. Happy new year to you Eric and family have a nice time ❤❤🎉🎉😂😢😮😅

12. Gibbs rule 47!!😂😂

13. That’s solder with an L😂 I’m with you on that Eric O. Good stuff.

14. Good job! Clean all three grounds on one service rather than have three visits. In the PRNY you know the other grounds would fail soon.

15. I love this stuff!

16. See what would've been a red flag is you have a intake air and mass airflow code at the same time right there that would've told me that I have a circuit problem and not a component failure cause look at it when have you seen those codes at the same time me only when it's unplugged.

17. As an ex mechanic, and now a mechanical engineer, engineering educator and certified to train the trainer, I can catagorically state, there is nothing with how you explain your logic and the methodical manner in which you get from point A to point B, don't sell yourself short.

18. Hi Eric, new sub here. May I ask which AUTEL scan tool are you using in this video? 🙂

19. You should move to Arizona so I can bring my stuff to you when I have a problem

20. Is it just me or does anybody else think it's funny the code status all have the dollar sign in them?

21. I understand almost nothing, but it’s still amazing to watch a highly skilled mechanic such as yourself work.

22. Eric, you could get a lot of comments by replacing the term "solder" with "lead brazing."

23. Great advise!

24. i dont know mas air things but i do know that the battrie is under the tear seat

25. Thank you. Great advice. Great video.

26. Dealer quoted changing MAF sensor, new air filter/box, new air intake manifold, new injectors, replaced engine gaskets, new computer, new exhaust and reconditioned battery. Afterwards, the problem is still not fixed.

27. My 2014 ford explorer suv is haunted by an evil spirit
    I don't need a mechanic I need a Priest to perform an exexcism
    Maybe if I just open the hood and pore a gallon of holy water
    on the motor that would work ?
    The problem is in the communication between the key
    fob and the door locks and also the
    tire pressure sender . they randomly work perfectly and than don't work at all
    sometimes when driving and sometime when stopped . luckily the key is a real key
    and ?I can still open doors and start the car .,
    I love your videos I wish I lived closer it is a long derive from Chardon Ohio
    Earl

28. Would adding dielectric grease or fluid film to the new connections help prevent this again in the future?

29. What scan tool, scope are you using?

30. grounds are for sissies and those whom want working things. 🤪

31. That is a great point about not using the signal ground as the ground. Thanks for making this video for us.

32. The lesson is when checking a power or ground on any circuit you want to use a known good ground/ power at the opposite end of your meter or test light. They say check your ground circuit first because nothing will work without a ground and this exemplifies that. You would be chasing a non existent issue on your power feed because you didn't start with a known good power/ground!

33. I spent some time providing over the phone support for in the field technicians. And I have to say that explaining and getting them to comprehend checking for voltage on the ground side of the circuit was probably be single most frustrating but rewarding thing I could have taught them. A lot of these guys didn't know the business end of their multimeter. And a lot of them would never really click. But some of them that had that aha moment were very satisfying. . The best way I could relate it to them even though it wasn't technically correct was imagining a simple circuit with a battery a light bulb and a ground. If you have 12 volts on the battery going into the light bulb, and you disconnect the ground what would you read on the ground side terminal of the light bulb? The correct answer is 12 volts. I would tell them that the LOAD of the circuit aka the light bulb. It "absorbs" the voltage. That's not correct I know but it makes sense in your head right? if you have full voltage after the load then that Will always indicate that your ground is not present. And if you had partial voltage that usually means that you have excessive resistance to the ground circuit. Simply adding an auxiliary ground to the circuit to verify whether the voltage drops is the easiest way to determine that. Bottom line, checking power and grounds also means checking for the presence of voltage on the ground It's much more revealing than just doing a continuity check.

34. I've listened to several of the skies youtube videos. He is smart intelligent thorough and an excellent mechanic. You should be a automotive teacher.You are in great demand for your knowledge

35. So many times in my job:

    "I need a new alternator"

    "Are you sure, have you checked your wiring?"

    "I'm sure it's the alternator"

    Three days later:

    "I've fitted the new alternator and it doesn't work"

36. As much as I love diag and your videos put a new perspective into the way I work and my diagnostics, I would love to occasionally see some videos of you beating the crap out of rust, dealing with broken studs, sweating, doing some timing chains and belts and all that jazz. 😀 Of course I am well aware you've done all that and then some, I've seen hundreds of SMA videos

37. Always good info.

38. Good job..take the wkend off..

39. Content like this should be a "must watch" for any technician program.
    God knows there's a lot of hacks on Youtube; but Eric and a handful of others are
    the gold standard.

40. That's why four channel is so epic

41. What scope were you using there Eric?

42. I'm trying to understand.

43. Solder . The Australian way 😉😂

44. Known good ground and known good power should be compared to the points in question, check them and see if they're what they should be. Assuming they are ok and not checking will go really badly real fast. Good video. Anyone who understands simple circuits can follow you

45. I always use a chassis ground for the voltage first then check the sensor ground for the any present voltages. It should read 0 VDC from a ground to a ground. Any resistance on the sensor ground wire it develops a voltage feeding through the sensor

46. You’re the best car mechanic that I know, awesome job

47. Your customers are so lucky to have you!!

48. Enjoying from way up north in the PRNY and yes, the weather has been ridiculous.

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