’21 Chevy Suburban – No Start, Cranks OK

50 thoughts on “’21 Chevy Suburban – No Start, Cranks OK”

1. At the 2min mark my experience said fpcm took a dump…but then again my vids would suck cuz it would be over after 2 bolts and a connector

2. Glad your feeling better, Eric, and nice to see you again. You da man….

3. all the fuel pumps i do either have just filled up or nearly full harldly ever almost empty

4. typical p129f or u18a2 same thing. on the newer Chevys and gmc very common

5. just load up the parts cannon

6. Thanks man.
   You gave me the knowledge and confidence to bail out on the worst job I've ever experienced. Love ya man

7. Always Love the 'car show' comments!!❤❤ Nice work Eric!!😊

8. Modern day, does not equate to better!

9. We’ve done dozens of these, especially on Malibu’s and Equinox’s. I recognized that code right away😅. Just wanted to say, we don’t even bother with the bracket. You can get a ratcheting box end up in there. It takes it little bit of bumping it back and forth, but you can pull the module out with the connector still attached. Love the channel. Been following for a few years now. Thanks for all the help, taking the time to video tape everything. I always learn something new.

10. WOW

11. Those engineers just do stupid shit for no apparent logical reason!!!

12. much like the saying in the band of brothers,the sargent doesn't hate everybody,he just hates you,GM feels the same way about you,but i think they hate everyone else just as much?

13. I fly R/c planes and we use 3-phase brushless motors. The power is supplied by an ESC (electronic speed control) which uses a PWM signal to determine what pulses to send to the motor. I wonder if you couldn't find one that would allow you to test the pump(albeit with a bit of modification)

14. The biggest problem with these system is if you get a defective new module what do you do next? They should at least give you a resistance value for the windings, then you could check the windings and shorts to ground.

15. All these computers are placed in a wet, dirty, non temperature controlled areas. What could possibly go wrong?

16. all assembly line efficiency for the weird mounting

17. I bet they put them on backwards so you can heat the nut…..right off the bracket. lol

18. Fuel pump module.

19. Did you change the fuel controller in this video to make the truck run?

20. As a retired controls enginerd, i first had the joy of exposure to VFD's (variable frequency drives) on materials handling equipment back in the 80's. They were in boxes that (even for small motors around 5 horsepower) weighted about 50 lbs with 5 lb aluminum heat sinks for the MOSFET….they call them IGBT's today. The early ones used 3 phase A/C to drive a regular A/C three phase motor at variable speeds. They were terrible and most of the ones I dealt with would stall if the speed was dropped much below 50% of line frequency speed.
    The motors that drive these fuel pumps are not brushless DC motors….those require rare earth metals for magnets. The motors on these fuel pumps are actually just A/C motors that are driven by the modules from DC supply from the battery. This is the same principle that EV's use to drive the traction motors that make your lectric car go down the road, though with much higher voltages and currents. This stuff has come a long way since my exposure to the first ones……just always keep in mind that OEM designers are driven by corporate objectives: cheaper components and larger profit margins. Those bolts in the frame would have probably worked better with a stove bolt (has the square shank just below the mushroom head) but I can assure you that the ones they used were less costly…..;)

21. We cannot match your skill or experience Eric. We are here to learn from a technician who knows how to find faults by testing. We appreciate you sharing your knowledge with us. Some of us are DIYers & some of us are current or retired techs that enjoy automotive technology. So keep doing what you do & we will keep watching!

22. The fuel pump bracket that had the bolt in backwards should have been pushed up and the withdrawn,no need to remove bolts just withdraw through the big holes in the key ways.😊

23. We diagnosed one once by jumping it to power. Because it wasnt sending power. Not sure if it was this specific setup but it had a fuel pump controller. Well when we jumped it to get the unit to run it went up in smoke after running for a bit. The module literally roasted itself right infront of us.

24. As soon as voltage gets down about 9V lots of ECU's just say BLAH!!!

25. Fuel tank goes in before the wiring harness and devices.

26. That's why I'm still driving a 23 year old Tahoe. Can't find a new one I'd replace it with.

27. I appreciate the time you take to let us know what you're thinking while you're diagnosing.

28. Do these newer Chevy suburbans or Silverado have a fuel pump reset switch which is usually I would think located near the passenger side kick panel? I believe my 2011 Silverado has a reset switch in there but not sure about the more modern vehicles. If it did would it be a good option to push that and see what happens?

29. GM stand for great mistakes

30. Manufacturers are justifying going out of business by alienating 10s of thousands of customers at a time.

    Take back market share build it for all…

31. China is laughing at durability.

    Meanwhile someone is going to not buy newer cars just because we dont make our own….

32. The reason why them bolts are put in that way is for Speed and cost

33. Good job Eric I know you'll figure it out great video thanks

34. GM sncks. I'll never buy another one .

35. "Made out of kitten fir" 😂😂😂

36. Keep up the honest videos. i have watched for years. And as Tech I have learned alot from you. So Thank You and look forward to more content.

37. Thanks the fumbly bumbly is usable information to most of us

38. Everything works in the northeast with enough Kroil. For things that don’t…plasma torch.

39. Engineers fixing issues that don't need fixing.

40. Give it a couple more years, the access holes will magically appear!!!😂

41. Lets be real, car makers come up with these braindead ideas like that bracket mount, so that the average customer doesnt attempt their own repair, and brings it to the expensive dealer to fix it.

42. Throw parts is good for GM. they love it.

43. I love ALL your videos!…I'm biased. So far this is my favorite…with a lack of information (not lack…withheld?) & a wealth of knowledge, you made a call.

44. Gm has a recall on these vehicle faulty fuel pump module . I have changed over a dozen on the chevy Tahoe police interceptor.

45. you might be able to use a cheap RC/model ESC to power/ test that pump. about $30 or so.

46. Darren at Mechanic Mindset just put up a video on how to test three phase fuel pumps. https://youtu.be/ViXVaaHFQWA?si=SBamW85dtc2FY0zq

47. They did the exact same thing on the crash sensors mounted on the intrusion beam inside the doors. You get on the end of the screw with an inverted Torx and then go righty loosy. Engineering stupidity at it's finest.

48. I’m thankful to have my GMT800 cateye Silverado, still runs like it came off the showroom floor

49. Could you just run correct voltage through the pump directly to verify motor functionality? Check to see if the controller unit is sending said current?

50. I have change many many of those on Tahoe’s, trucks, Yukon’s ect. Takes about 10 minutes. Very easy to do. Never had to heat any fastener. Every tech hates working on one brand or another. Eric just hates working on GM when truthfully ALL are garbage now regardless of brand name. All manufacturers are now in concert to make vehicles like a cell phone. Designed obsolescence.

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