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Fixed: V6 Cutting out at cruising speeds?

Discussion in 'Early CJ5 and CJ6 Tech' started by sparky, May 14, 2006.

Page 18 of 50
  1. sparky

    sparky Sandgroper Staff Member Founder

    Re: V6 Cutting out at cruising speeds?

    It did it with both points and HEI. No change in behavior at all. I don't think switching yet again will help much.

    I think I can rule the gas tank thing out. Look above.
     
    sparky, Jul 28, 2006
    #341
  2. blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Re: V6 Cutting out at cruising speeds?



    Ok I am going waay out on a limb here, but I have seen it happen once.


    Disconnect the tach.......I had one short on me once.


    Then send me a case of beer
     
    blevisay, Jul 28, 2006
    #342
  3. jpflat2a

    jpflat2a what's that noise?

    Re: V6 Cutting out at cruising speeds?

    spark plugs
    buy what you like and drink it for me !
     
    jpflat2a, Jul 28, 2006
    #343
  4. MCSCOTT

    MCSCOTT Member

    Re: V6 Cutting out at cruising speeds?

    Oooooooo, I have seen this before too when it was a bad connection with a tach on one. When the tach would quit working, the engine would run perfect, when it was working, it would fall on it's face. Another vote for disconnecting it just to check.
     
    MCSCOTT, Jul 28, 2006
    #344
  5. Mudweiserjeep

    Mudweiserjeep JEEP: Bouncy and Fun

    Re: V6 Cutting out at cruising speeds?

    muffler bearings?.................R) sorry I couldn't resist.
     
    Mudweiserjeep, Jul 28, 2006
    #345
  6. sparky

    sparky Sandgroper Staff Member Founder

    Re: V6 Cutting out at cruising speeds?

    I replaced those and the knuter valve between the header collector and muffler while I had the headers off Tim.
     
    sparky, Jul 28, 2006
    #346
  7. MCSCOTT

    MCSCOTT Member

    Re: V6 Cutting out at cruising speeds?

    From reading through most of this again, I have come to the conclusion at there is nothing wrong with your Jeep, it has to just be your imagination.:) :)
     
    MCSCOTT, Jul 28, 2006
    #347
  8. sparky

    sparky Sandgroper Staff Member Founder

    Re: V6 Cutting out at cruising speeds?

    I always did have a vivid imagination.

    Maybe it just wants new tires? R)
     
    sparky, Jul 28, 2006
    #348
  9. Mudweiserjeep

    Mudweiserjeep JEEP: Bouncy and Fun

    Re: V6 Cutting out at cruising speeds?

    That's it!R) R)
     
    Mudweiserjeep, Jul 28, 2006
    #349
  10. MCSCOTT

    MCSCOTT Member

    Re: V6 Cutting out at cruising speeds?

    R) Yep, if your Jeep is a spoiled brat, new tires might do the trick.
     
    MCSCOTT, Jul 28, 2006
    #350
  11. jd7

    jd7 Sponsor

    Re: V6 Cutting out at cruising speeds?

    mine always seemed to run like new with new tires;)
     
    jd7, Jul 28, 2006
    #351
  12. mb82

    mb82 I feel great!

    Re: V6 Cutting out at cruising speeds?

    Sparky Chia is fighting me less since I got the new tires. So that might help.
     
    mb82, Jul 28, 2006
    #352
  13. beeser

    beeser Member

    Re: V6 Cutting out at cruising speeds?

    No offense Sparky but how about taking up a collection to send jpflat2a (Jim) out there?
     
    beeser, Jul 28, 2006
    #353
  14. vanguard

    vanguard

    Re: V6 Cutting out at cruising speeds?

    So you get up, hop in the Jeep (cold engine) start out, every things runs fine, even in 3rd gear and go about 2 miles (hot engine). Now we have backfiring problems - coughing. Does the carb have a choke pull-off? IIRC, its a 2G? Are the warm air passages from the intake open or closed?

    Coil could be failing as it gets hot? Let's change the spark plugs anyway, might have been damaged by backfiring or defective from the factory.
     
    vanguard, Jul 28, 2006
    #354
  15. BlueFlu

    BlueFlu past owner of some ecj5's

    Re: V6 Cutting out at cruising speeds?

    The problem is the Jeep wants to come to Tellico. It knows if it runs bad long enough then fixes itself you might just bring it. R)

    Didn't think about the tach causing problems. Kind of a stretch but what do have to lose at this point.
     
    BlueFlu, Jul 28, 2006
    #355
  16. spoon

    spoon New Member

    Re: V6 Cutting out at cruising speeds?

    Dang Sparky, Your jeep seemed to run good till i showed up. :oops:
     
    spoon, Jul 28, 2006
    #356
  17. MOP

    MOP Active Member

    Re: V6 Cutting out at cruising speeds?

    :cry: :cry:

    I can head over tonight and hand you a wrench or two if you want me to. IIRC, you ran the jeep with a gas can in the cab, bypassing the tank?
     
    MOP, Jul 28, 2006
    #357
  18. sparky

    sparky Sandgroper Staff Member Founder

    Re: V6 Cutting out at cruising speeds?

    No, today was the first day it ran fine then acted up. Previously it'd act up immediately when I got to 55 mph.

    Choke is open, it's manual.

    Warm air passages were carboned shut prior to hot tanking. Blocked off by the gasket I'm currently using. So that's not changed, they're blocked.

    Coil(S) both 12V and HEI have exhibited the same symptom.
     
    sparky, Jul 28, 2006
    #358
  19. jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    Re: V6 Cutting out at cruising speeds?

    I have a recently rebuilt/working 2G on my Chevelle that I could send over if you want to try a different carb altogether. Came off a '70 GMC 307, so it probably is jetted a little richer. Car is just sitting for welding, so it wouldn't bother me any. Then I could just pick it up from you when you take Linus wheeling Labor Day;)
     
    jayhawkclint, Jul 28, 2006
    #359
  20. sparky

    sparky Sandgroper Staff Member Founder

    Re: V6 Cutting out at cruising speeds?

    I appreciate the offer. I did already try another carb. Just ran worse but did the same thing. R)
     
    sparky, Jul 28, 2006
    #360
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