Trucking Jobs New Driver Jobs Flatbed Jobs Tanker Jobs Refrigerated Jobs Auto Hauler Jobs
Results 1 to 9 of 9
  1. #1
    Light Load Member
    Member Since
    Sep 2011
    Location
    MS
    Trucker?
    0-1 Year
    Posts
    62
    Thanks
    55
    Thanked: 3 Times

    How can i tell if an injector is bad

    I'm looking at a 96 freightliner and the guy is saying it has a blown injector and he doesn't want to get it repaired because he got it in a trade and with a kid who thought he could drive it as a farm truck with no tag or insurance or 2209 and etc lol thats another story. But he said he will give me a great price just to help me out, even though he is selling it to me for a cheap price i would like to purchase a quality truck that i can put to work asap..


  2. #2
    Road Train Member
    Member Since
    Apr 2009
    Location
    aircap, Ks.
    Trucker?
    WannaBe
    Age
    44
    Posts
    2,540
    Thanks
    706
    Thanked: 2,526 Times
    Detroit engine or what?

  3. #3
    Light Load Member
    Member Since
    Sep 2011
    Location
    MS
    Trucker?
    0-1 Year
    Posts
    62
    Thanks
    55
    Thanked: 3 Times
    it is a cat

  4. #4
    Heavy Load Member
    Member Since
    Feb 2012
    Location
    Orlando, FL
    Trucker?
    EX-15 Years
    Posts
    752
    Thanks
    100
    Thanked: 196 Times
    Use a scanner and do an injector run out test. If one is unavailable, pull the harness one by one. If there is no difference in the engine when you pull the harnees, injector is bad or not getting voltage (presuming a HEUI or EUI injector). You can also break the fuel line down for each injector. If you do that and there is a "pop" or knock, injector is good, but cylinder is bad.

    Best solution after all of this is to pull the injector and inspect it. It could be something as simple as a $5 spring from you injector shop. Other option is to have a pop test done on the injector.

    It helps to know the engine for more specific steps.

  5. The Following 2 Users Say Thank You to Shaggy76 For This Useful Post:


  6. #5
    Banned or Retired
    Member Since
    Dec 2008
    Trucker?
    No Answer
    Posts
    2,721
    Thanks
    202
    Thanked: 2,011 Times
    Walk away. The dealer could be hiding a much more serious problem with the engine. Unless he's willing to allow you to take it to a CAT dealer for the diagnostics beforehand to determine the cause of the problem, I'd run from it.

  7. The Following 2 Users Say Thank You to Mr. Haney For This Useful Post:


  8. #6
    Medium Load Member Smellfunny's Avatar
    Member Since
    Jan 2012
    Location
    South Carolina
    Trucker?
    Trucking Industry
    Posts
    422
    Thanks
    102
    Thanked: 104 Times
    I would also want it checked out by some one else or walk away. You could have serious issues or it could just be an injector. Better to be safe than sorry. You could have a damaged camshaft or who knows.

  9. The Following User Says Thank You to Smellfunny For This Useful Post:


  10. #7
    Road Train Member Heavyd's Avatar
    Member Since
    Feb 2009
    Trucker?
    Trucking Industry
    Age
    39
    Posts
    3,309
    Thanks
    524
    Thanked: 1,203 Times
    Walk away, this truck is 16+ years old.

  11. The Following User Says Thank You to Heavyd For This Useful Post:


  12. #8
    Bobtail Member
    Member Since
    Feb 2012
    Location
    Norcross ga
    Trucker?
    7 Years
    Posts
    26
    Thanks
    5
    Thanked: 2 Times
    16 Yrs ? just walk away buddy.. with this economy u can buy a better quality truck out there..GL

  13. The Following User Says Thank You to Reddevil For This Useful Post:


  14. #9
    Heavy Load Member
    Member Since
    Feb 2012
    Location
    Orlando, FL
    Trucker?
    EX-15 Years
    Posts
    752
    Thanks
    100
    Thanked: 196 Times
    I also suggest that if you are wanting it for a classic truck or collector truck, take it to a CAT shop for the engine, or the local Freightliner. Have them do a 49 point inspection on it (which is a checkout of the entire truck including a engine scan) and ask for a oil sample, but do not change oil, filters, or grease. They usually run about $60 in my area for a inspection only. They will tell you everything wrong with it and then you can bargain lower on it. If they will not let your own guy work on it, it is best to walk away. They might have pulled the injecot and found a cam lobe worn off do to the injector getting seized (HEUI do this a lot) and is trying to get more from the truck. Cams are rather pricey and need a full overhaul of the engine, whics makes the truck worthless.

    Now on the other hand, if only an injecotr, you can knosk $3 - 4k off the price, get an injector and overhead done with full oil change service for under $1k. Options are yours and good luck on your potential purchase.