Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: diesel truck smokes (black) when pulling a hill

  1. #1
    Junior Member SHOW GUEST
    Join Date
    Oct 2007
    Posts
    4

    diesel truck smokes (black) when pulling a hill

    what would cause a truck to smoke really bad when im going up a hill or just mashing the throttle to speed up? thats the only time it does it never smokes other than that. 6.5 turbo diesel injectors???? injector pump?????
    thanks

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Location
    Coldwater, MI
    Posts
    2,998
    sounds like a typical diesel to me ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Jun 2003
    Location
    Hobbs, NM
    Posts
    842
    Your computer is giving more diesel for more power. You might check to see if someone has put a different chip in. If so nothing wrong the computer is just giving you more fuel for more power. Within reason now, if your blocking traffic with your smoke you have a problem.....

  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Jan 2007
    Location
    winner sd
    Posts
    196
    what year? my '94 was doing the same thing and replaced the wastegate valve. also check your vacume pump.

  5. #5
    Senior Member SENIOR BUILDER
    Join Date
    Nov 2004
    Posts
    118
    Check your egr. My work truck, a 07 6.0 already puked 2 egrs and one cooler along w/ a set of injectors and its smokeing again.

  6. #6
    Senior Member DYNO OPERATOR
    Join Date
    Aug 2005
    Location
    Rifle Colorado
    Posts
    585
    Quote Originally Posted by gnsrule
    Check your egr. My work truck, a 07 6.0 already puked 2 egrs and one cooler along w/ a set of injectors and its smokeing again.
    If you have an egr cooler problem the smoke will be white and lots of it!!

  7. #7
    Senior Member MASTER BUILDER
    Join Date
    Aug 2003
    Location
    Big Lake, Minnesota
    Posts
    162

    Re: diesel truck smokes (black) when pulling a hill

    Quote Originally Posted by s55
    what would cause a truck to smoke really bad when im going up a hill or just mashing the throttle to speed up? thats the only time it does it never smokes other than that. 6.5 turbo diesel injectors???? injector pump?????
    thanks
    Thats pretty typical for the 6.5. They smoke a lot and not a lot of power. Manufacturers didn't have to meet the strict requirements back then as they have in the past years.

  8. #8
    Senior Member MASTER BUILDER
    Join Date
    Jan 2007
    Location
    winner sd
    Posts
    196
    tcarda, thats where you're wrong on the smoking. my 94 smokes very little and thats when i haven't been running it down the hiway in a while. pulling a pretty long hill out of Ft. Pierre, it doesn't smoke at all and thats a 1 1/2 mile long hill. all the way to the floor. if it's a 94 or newer 6.5 turbo, it has a pmd to control the injection. keeps it from smoking. if the vacume pump isn't strong enough, the waste gate doesn't work right, also if the dashpot for the waste gate isn't working right, it either won't open all the way or it opens too soon. opening to soon will make it smoke really bad when you put it to the wood. but your right on the power, it doesn't have a lot of power, but if the load isn't too heavy,like mine, it will get better fuel mileage than the others from that era.

  9. #9
    Junior Member SHOW GUEST
    Join Date
    Mar 2009
    Posts
    8
    how about this, air filter?

  10. #10
    Senior Member DYNO OPERATOR
    Join Date
    Mar 2008
    Location
    New Orleans,La
    Posts
    515
    Quote Originally Posted by sds10racer
    tcarda, thats where you're wrong on the smoking. my 94 smokes very little and thats when i haven't been running it down the hiway in a while. pulling a pretty long hill out of Ft. Pierre, it doesn't smoke at all and thats a 1 1/2 mile long hill. all the way to the floor. if it's a 94 or newer 6.5 turbo, it has a pmd to control the injection. keeps it from smoking. if the vacume pump isn't strong enough, the waste gate doesn't work right, also if the dashpot for the waste gate isn't working right, it either won't open all the way or it opens too soon. opening to soon will make it smoke really bad when you put it to the wood. but your right on the power, it doesn't have a lot of power, but if the load isn't too heavy,like mine, it will get better fuel mileage than the others from that era.
    X2 on the wastgate . make sure the vacume pump has 20+ inches.

    I took the vacume lines off the boost senser loup them to gather BOOM no more black smoke 15 + on the boost. defueling up hills or tall bridges

    if thay takes care of your black smoke put some springs to hold the wastgate closed
    Full Time Racing,WASTED $$ division

    http://www.racingjunk.com/profile/281924

    Be a Fan of Full Time Racing on facebook http://www.facebook.com/pages/FULL-T...G/177402183154


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Copyright © 2005-2016 RacingJunk.com All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the RacingJunk.com
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy