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My RPM gauge won't work. Please help!

Discussion in 'Experienced Truckers' Advice' started by Dave2014, Mar 7, 2015.

Page 1 of 3
  1. Mar 7, 2015 #1
    Dave2014

    Dave2014 Bobtail Member

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    Hello! I have a '07 Volvo cummins engine. Earlier today the light for check climate unit light kept turning on but now my rpm gauge won't work at all. I am currently on a load. Is it alright if I continue to keep going? Is there any negative side effects on traveling with a broken rpm?

    Please and thank you to anyone who has any advice.

    -Dave
     
    Dave2014, Mar 7, 2015
    Dave2014, Mar 7, 2015
    #1
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  3. Mar 7, 2015 #2
    fargonaz

    fargonaz Road Train Member

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    As long as the speedo works you should be able to continue to someplace to get it checked out. Since most gauges are now electronic, I would get it checked as soon as possible. It might be the precursor to a larger problem that could leave you stranded.
     
    Last edited: Mar 8, 2015
    fargonaz, Mar 7, 2015
    fargonaz, Mar 7, 2015
    #2
    Dave2014, daf105paccar and Pedigreed Bulldog Thank this.
  4. Mar 7, 2015 #3
    Pedigreed Bulldog

    Pedigreed Bulldog Road Train Member

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    ...and it's called a tachometer.
     
    Pedigreed Bulldog, Mar 7, 2015
    Pedigreed Bulldog, Mar 7, 2015
    #3
    Dave2014, x#1 and 201 Thank this.
  5. Mar 7, 2015 #4
    Dave2014

    Dave2014 Bobtail Member

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    But would this have negative effect on my motor until I reach my destination?

    Thank you so much for your reply!
     
    Dave2014, Mar 7, 2015
    Dave2014, Mar 7, 2015
    #4
  7. Mar 7, 2015 #5
    Patronas01

    Patronas01 Light Load Member

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    No it wont have any negative effect on your engine. It is just a gauge that tell you what RPM's your engine is running. I guess the only negative effect will be for you to see when you are going to shift your transmission. Just don't over rev your engine and you'll be fine.
     
    Patronas01, Mar 7, 2015
    Patronas01, Mar 7, 2015
    #5
    Dave2014 Thanks this.
  8. Mar 7, 2015 #6
    KW Cajun

    KW Cajun Road Train Member

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    Are you saying after 5 yrs, you have no idea if you're doing 1500 rpm or... 4500 rpm by engine sound?
     
    KW Cajun, Mar 7, 2015
    KW Cajun, Mar 7, 2015
    #6
    JolliRoger, Reaper'sTrucking, d281833 and 2 others Thank this.
  9. Mar 7, 2015 #7
    coueshunter

    coueshunter Heavy Load Member

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    Hell, if your this paranoid about no tachometer... I'm not sure you can shift with out it
     
    coueshunter, Mar 7, 2015
    coueshunter, Mar 7, 2015
    #7
    JolliRoger Thanks this.
  10. Mar 7, 2015 #8
    Ukumfe

    Ukumfe Medium Load Member

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    He is saying that, and so much more...... :biggrin_25511:
     
    Ukumfe, Mar 7, 2015
    Ukumfe, Mar 7, 2015
    #8
    JolliRoger Thanks this.
  11. Mar 7, 2015 #9
    allisonisatranny

    allisonisatranny Light Load Member

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    errr my gawd....my head...
     
    allisonisatranny, Mar 7, 2015
    allisonisatranny, Mar 7, 2015
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    MJ1657 Thanks this.
  12. Mar 8, 2015 #10
    snowwy

    snowwy Road Train Member

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    yes, it could have a negative impact if not fixed. and i say COULD.

    your ecm needs to know what cylinders to fire at what time. it does that by using a crank angle sensor and a cam sensor. and i beleive, the tachometer also works off the cam sensor. at some point and time. the truck may stop running. if the tachometer works off the same one of the sensors. and that particular sensor completely fails.

    so i say, COULD have an impact.

    i drove a 99 pete with a cat that failed tachometer. 2 months later it quit running. but you have a cummins motor. you may not end up with the same problem. you might have 2 seperate sensors. or it may just be a completely different problem not related to the sensors.
     
    snowwy, Mar 8, 2015
    snowwy, Mar 8, 2015
    #10
    Dave2014 Thanks this.
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