Exhaust Gas Temperature too high?

Discussion in 'Volvo Forum' started by ChromeNut, Jun 29, 2014.

  1. ChromeNut

    ChromeNut Light Load Member

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    May 22, 2014
    Lockport, IL
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    I've got '06 Volvo 630 D12 with 640K, and my Pyrometer started showing at 1200-1500. Is this a sign of bad EGR valve/cooler? Maybe a turbo? Truck still drives. I stopped in Lexington, KY to wait until Monday to take it to a Volvo dealer..
     
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  3. Lady K

    Lady K Road Train Member

    Could your engine be doing a burn off?
     
  4. ChromeNut

    ChromeNut Light Load Member

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    May 22, 2014
    Lockport, IL
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    It doesn't seem to burn oil. Oil level is good and no black smoke coming from exhaust... mpg and power still good.
     
  5. JAYRODPA

    JAYRODPA Light Load Member

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    Apr 10, 2009
    Dingmans Ferry pa
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    Whens the last time you change your air filters. Air restriction will cause your pyrometer to run hot. there my be a egr problem. but you would usualy feel the loss of power. dont keep running it like that because you will burn up the turbo.
     
  6. ChromeNut

    ChromeNut Light Load Member

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    May 22, 2014
    Lockport, IL
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    All the filters (including air) were changed 3 weeks ago (that's when I purchased this truck). When stopped I can hear turbo "popping" due to heat, and turbo seems old, very rusty ... but again, no power loss whatsoever..
     
  7. cabwrecker

    cabwrecker The clutch wrecker

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    1,250
    Mar 23, 2012
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    It's an '06.
    Pre-emissions on the DPF


    Did you have an oil analysis done, prior to buying? Have the results handy? What did they note?
     
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  8. maggard359

    maggard359 Medium Load Member

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    Nov 20, 2013
    Florida
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    Is it only doing it on a pull? Can you drop a gear and bring pyro down? Pull intake side of turbo along with exhaust side and look for damage and back and forth play with wheel. Should have side to side play but no rubbing and no back and forth play. The popping noise probably verifies the gauge is accurate. I have never ran a truck over 1200 I can't imagine the damage that your motor is having at 1500 degrees.
     
  9. Lux Prometheus

    Lux Prometheus Heavy Load Member

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    Oct 28, 2013
    San Venganza, Tx
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    Too old for that
     
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  10. ChromeNut

    ChromeNut Light Load Member

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    May 22, 2014
    Lockport, IL
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    Actually when pulling, the temp goes down a bit sometimes... And noticed a drop when driving in low gear going to a motel... but didn't try putting in lower gear on the highway. I'll sure try that tomorrow, cuze i've got 30miles to go to the shop. Thanks for your advices guys!
     
  11. Passin Thru

    Passin Thru Road Train Member

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    Mar 8, 2007
    VA
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    GOSH! We used to run the EGT to 1250 then put a baseball cap over it. 200 degrees wont melt one. I was actually taught, not over 1450 for over 5 minutes. However, did you ever dream of getting your foot out of it. I've run bullwagons that had a 400 Cummins and turned up to 500. Running from OKC to Denver on a 70 degree night wth a 30 mph wind out of the SW you had to watch it every minute. We didn't have cruise control, just a brick.
     
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