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Come along with Eric O. at SMA as we have a close look at fuel pump current waveforms on this Jeep Liberty that was towed in as a no start. It is easy to call a fuel pump but it is a lot more fun to have a look at how it failed. We also see the process of replacing the fuel pump too.
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46 thoughts on “Jeep liberty – crank no start”
  1. Avataaar/Circle Created with python_avatars W Greathouse says:

    To bad all manufactures wouldn't put a access panel in like that.

  2. Avataaar/Circle Created with python_avatars Denver Basshead says:

    I was surprised to learn my fuel pump and filter were underneath my back seat

  3. Avataaar/Circle Created with python_avatars mark moses says:

    I have the same problem with my 2008 Jeep Liberty. Auto Zone hooked up their diagnostic tool and it said the most likely culprit was the Crankshaft Position Sensor. So I bought the part and had some dude change it. No dice. The dude said he smelled gas as I did before. So this prompted him to say it was the fuel pump. So the owner is headed down in a few weeks and she has Triple A. So she is going to have it towed to a shop and have it looked at. As a side note the check engine light is on. When I try to start the vehicle it won't turn over. It tries to start but won't. Would like to have a little knowledge when explaining the problem. Any insight is welcome.

  4. Avataaar/Circle Created with python_avatars Damien Reed says:

    What size drill bit did you use to drill out the ribbits and what size brass punch did you use ?

  5. Avataaar/Circle Created with python_avatars bibo 221 says:

    i think that fire near fuel is danger

  6. Avataaar/Circle Created with python_avatars Melanie Branton D.V.M. says:

    what about exposing yourself to benzene that is in the gas……you put your hand in the tank. Yes, chemical, long sleeve gloves are available at harbor freight. You have to respect chemicals. Cumulative effect on the kidneys and liver will catch up with you later in life; seen a great many mechanics with kidney cancer due to chemical exposure over the years. My father was a fighter pilot in the Navy….benzene exposure resulted in kidney cancer. Respect the chemicals and wear the protection. I enjoy both channels and you have a wonderful family. Through your two channels, I have met your wife, kids, father, and two brothers. Very impressed with your work and your wonderful family.

  7. Avataaar/Circle Created with python_avatars Melanie Branton D.V.M. says:

    Hey Eric, much respect but I would never be within 50 feet of somebody using a torch around a fuel pump…………..scary.

  8. Avataaar/Circle Created with python_avatars Dusty Davis says:

    Not to drag an old video out of the graveyard. But I'm driving a 03 liberty and was replacing the fuel pump and filter when a plastic piece of the fuel flange cover, the lid to the tank that the fuel pump and filter connect to on opposite sides, broke. More specifically the L piece on the outside that connects to the longer of the 2 top lines from the fuel filter. I have searched high and low for a replacement piece for this and even the whole fuel tanks I find don't have this lid with them… do you have any advice for where I could look for a replacement cover? Mopar says the part was discontinued and I can't find anywhere that has made a replacement.

  9. Avataaar/Circle Created with python_avatars george hayduke says:

    heat gun wont start leaking fuel on fire , a torch will

  10. Avataaar/Circle Created with python_avatars Lui Cal says:

    Love this channel Eric seems super nice and genuine. Overall helped me learn a lot. Keep up the good work. We need more mechanics like this.

  11. Avataaar/Circle Created with python_avatars CHRISTOPHER D HERMAN says:

    I liked 👍 the video.

  12. Avataaar/Circle Created with python_avatars CHRISTOPHER D HERMAN says:

    Always nice to have a helper that is knowledgeable. She deserves a hug from dad.

  13. Avataaar/Circle Created with python_avatars Voyageur314 says:

    Couldn't you use PBblaster to help cut through the rust?

  14. Avataaar/Circle Created with python_avatars edilyjulie Vazquez Diaz says:

    Thanks for the video. Maybe it would be good to say: "Don;t try at home" because it is too risky to apply fire to close to the fuel gas tank>

  15. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Aww nevermind you did get the new o ring gasket on Nice Work Eric O Good Diag And Video as always 👍 @SouthMainAutoRepairLLC

  16. Avataaar/Circle Created with python_avatars R lowle says:

    How easy it could be. But poor design wins out. You forgot a new fuel filter.

  17. Avataaar/Circle Created with python_avatars R lowle says:

    So jeeps remedy for replacing a fuel pump is a torch.

  18. Avataaar/Circle Created with python_avatars R lowle says:

    There must ve a book on how to make styff a pain in the ass…

  19. Avataaar/Circle Created with python_avatars Russ Bell says:

    Man, you make me glad to live in the arid west. All that rust around the clamp ring! Wow. We don’t get that. Great video! Thank you.

  20. Avataaar/Circle Created with python_avatars Ever Lopez says:

    Muy buenas enseñanza felicitaciones

  21. Avataaar/Circle Created with python_avatars Kim Burner Sackmann says:

    5 years later..
    I have an 04 Liberty. Guess what! They took away the access door above the tank. We are going to have to drop the tank. 😩 Ugh.

  22. Avataaar/Circle Created with python_avatars Ronald Nadeau says:

    thank you friend your the best

  23. Avataaar/Circle Created with python_avatars Goodyguy says:

    And I suppose that you had a good reason not to lubricate the lock ring for easy removal?

  24. Avataaar/Circle Created with python_avatars XxSpeed831xX says:

    I rather have my mechanic blow himself up. Jk

  25. Avataaar/Circle Created with python_avatars Daniel Patty says:

    Nothing more exciting than working near the gas tank than doing it with a torch.

  26. Avataaar/Circle Created with python_avatars John Ridley says:

    what no wire wheel and fluid film on the lock ring???

  27. Avataaar/Circle Created with python_avatars notrut says:

    Are you far from the local Fire Station?

  28. Avataaar/Circle Created with python_avatars Alan Robison says:

    What's wrong with people? I would be embarrassed for anyone to see my vehicle that nasty. If I'm going to get it worked on I am going to clean it out!

  29. Avataaar/Circle Created with python_avatars Ghett SUMM says:

    He sure is Rockin' that Jeep hat!,……….He secretly loves Mopar.

  30. Avataaar/Circle Created with python_avatars Otilio Hernandez says:

    What was the difference between the two wave form that tell you that the fuel pump was bad? Is just the rpm ? Can we still have good amps in a bad pump?

  31. Avataaar/Circle Created with python_avatars Davey T says:

    Have a 2011 grand cherokee with the same problem. 2 FP relay recalls later and it still doesn't work. FP relay is OK.

  32. Avataaar/Circle Created with python_avatars williard billmore says:

    There is a fuel tank here under this panel.
    Let me just get to it with this open flame blow torch.
    What could happen?

  33. Avataaar/Circle Created with python_avatars Kasual Skeptik says:

    Cringing every time he introduces a flashlight or brushes up against those wires, and just waiting for WHOOMP !!! iiiiieeeee…..!

  34. Avataaar/Circle Created with python_avatars That American says:

    I think the Ziebart guy got carried away…

  35. Avataaar/Circle Created with python_avatars That American says:

    Speed nuts.. In the DC area anyway.

  36. Avataaar/Circle Created with python_avatars Bonzo Craft says:

    Best mechanic on you tube. Bar none……and the amazing part is he’s honest. Unbelievable.

  37. Avataaar/Circle Created with python_avatars Bass Hunter says:

    1,2 suckaroo?🤣🤣🤣

  38. Avataaar/Circle Created with python_avatars WisdomVendor1 says:

    On your RPM calculation for the pump motors, when you consider a full cycle of the waveform, keep in mind that with a 2 brush DC motor each full cycle of a waveform will represent half a rotation therefore your calculations came up with twice the RPM that it is actually turning because those same commutator pads make contact on each brush twice per revolution.

  39. Avataaar/Circle Created with python_avatars Barnard Brewer says:

    Vacuum lock.

  40. Avataaar/Circle Created with python_avatars Barnard Brewer says:

    O2 sensor.

  41. Avataaar/Circle Created with python_avatars Dr. Crentist says:

    Hey. Is the "upper portion" of the fuel module replaceable? I cant find it online. Does the upper part contain the pressure valve for cold starting?

  42. Avataaar/Circle Created with python_avatars Jason Martinez says:

    Where did you get that fuel pump from? I called the dealership and they said they discontinued these parts for this jeep liberty

  43. Avataaar/Circle Created with python_avatars William White says:

    Paper shop towels in a funnel make a good gasoline filter when pouring the gas from one container to another.

  44. Avataaar/Circle Created with python_avatars Galen Lewis says:

    Thank you for this video. My daughters 2002 Jeep Liberty had the fuel pump go bad. It was nice to find your video on You Tube. We were glad to be able to be able to watch you repair one. We had a bad after market one at first attempt but exchanged it and replaced it and were successful. One thing to note (we didnt do this) is to not dry run the new replacement pump due to the fact that it can ruin it. Thanks again.

  45. Avataaar/Circle Created with python_avatars Edward Kopp says:

    The vehicle owner will need a fuel pump or a hammer… LOL!

  46. Avataaar/Circle Created with python_avatars Gerald Fields says:

    "There we go. Just like we found it"

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