Do you know how to work on your truck?

Discussion in 'Ask An Owner Operator' started by HillbillyDeluxeTruck, Jul 10, 2025.

  1. HillbillyDeluxeTruck

    HillbillyDeluxeTruck Road Train Member

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    I just had a bad experience at a shop after dropping it off yesterday. This is pretty rare for me because I have my select people who I use for work.

    But it makes me question, how many of you know how to work on your truck? How to go through and diagnose issues and the steps needed to repair the truck?

    This stems from diagnosing a no crank issue that I posted on here about. After figuring out the wiring issue (old, broke wire), I decided to have a semi-local shop repair it by making a new short 2 wire harness.

    I wont go into detail, but I have the truck back, not repaired or aligned. I trusted them to handle the specific work I wanted done, and it didnt get done. Now Im out another day and a "diagnosis" charge.

    Im interested from hearing from the guys out there that own a truck and don't really have the skill to work on your own truck. How do you handle shops that come up with unnecessary repairs because they think they can scare you into dropping thousands of dollars? I use repair shops out of convenience, not out of necessity. But I have friends and acquaintances that have spent 10's of thousands of dollars on repairs and labor only to not have the issue fixed. I couldn't imagine being in that position.
     
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  3. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    You learn how to diagnose your truck and put your foot down hard on as much as is possible. Or you go belly up. Its simple as that.
     
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  4. snicrep

    snicrep Road Train Member

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    I can work on most things on a truck, but now a laptop has to be plugged in just to change a sensor.
     
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  5. AModelCat

    AModelCat Road Train Member

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    The old man and I would do absolutely everything to his truck/trailer other than opening up the engine or rebuilding components. Or if it required a specialty tool like a flowmeter or something. No BS the truck had at least 2-3 hours worth of labour put into it every weekend. Probably saved at least $2k a month by doing the maintenance and repairs ourselves.
     
  6. 201

    201 Road Train Member

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    high plains colorado
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    Not anymore,,,I did practically everything on my trucks, but that was 30 years ago, when trucks were glorified farm tractors. It's a setup, today, with most electronics, you can't work on it. 1st, don't kid yourself, trucks back then broke all the time. A daily thing, sometimes. 2nd, thing was, duct tape and baling wire, or put the pump on "manual", usually got you back, today, I wouldn't know where to begin. You want to truck today, high tech repairs are just part of the deal. I'd say buy an old Cornbinder, but I bet soon, ALL trucks will have to comply to standards, making shops even richer. "Shop supplies" ?:mad:
     
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  7. ElmerFudpucker

    ElmerFudpucker Road Train Member

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    that’s just not true. If a mechanic work on it so can you. You just have to buy the right tools. No different than 40 years ago
     
  8. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    Yes and also no. My cummins it is a once a year fee of $400 to get the dealer level software. My paccar was a $12,000 a year subscription if i wanted access to emissions stuff. It may have gone down in the 5 odd years since i last looked but i doubt it.

    There IS a point where it costs less to make a dealer do it then the tool is worth.... unless you have so many breakdowns its a moot point. But by then your going to have other issues. Like anything it just depends.

    Though i am also still pissed that changing an alternator on my paccar required me to get it towed in to be reprogrammed.
     
  9. ElmerFudpucker

    ElmerFudpucker Road Train Member

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    You can get all the software and the computer with no expiration date for $2700. So it’s not a yes and no. You just need to know
     
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  10. Powder Joints

    Powder Joints Subjective Prognosticator

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    Depends, wiring issues, open or shorts I can find. not and issue. Current draw issues I can find, same with service items. But if you need software the cost of the license is just to prohibited, it the manufacture ways to keep you from servicing your own equipment, in some cases they will actually not sell you the parts. Not just trucks either, alot of industries have gone this way.
    My son had his new Apple laptop fail at 3 months, Circuit City and Apple told him he had done something to cause the failure, I opened it up and found a regulator IC had eaten itself, replaced the chip now its fine for a 12 dollar chip they wanted him to buy another new computer. The way of the new world. Same with the Trane HVAC unit on my house, wife called the local authorized Trane dealer and was told gee, its old you need to replace it, when I got home I spent 75 bucks on a fan motor and purchased two capacitors 25 bucks and it runs like new again the house was cold yesterday 65 degrees inside 105 outside.
    It should be your right to service and repair anything you own, it's yours you should have the right to purchase parts or software at a reasonable price to maintain it
     
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  11. ElmerFudpucker

    ElmerFudpucker Road Train Member

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    who, what and where?
     
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