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  1. duramax on fire

    Running hot

    Had problems with mine overheating and the problem was the fan clutch. When it heated up I never could hear mine kick in. there was also oil around mine. Sign of internal leak.
  2. duramax on fire

    4" exhaust.

    Ok thanks. I donly want to add any noise. Just help EGTs with the small tune
  3. duramax on fire

    4" exhaust.

    DP means down pipes right? Off the turbo. Sorry still learning the lingo.
  4. duramax on fire

    4" exhaust.

    Thanks for all the help guys. Since the truck is cooling good know I'm not going to worry about it. So from the comments and reading. Going to do the 4" and a small tune. I'll start a new thread latter in the year with mpg improvements if any. Towed 1500 miles getting 10.7 so I have a good...
  5. duramax on fire

    4" exhaust.

    I agree but I did compare the gauge with my snap scan tool. Gauge was right
  6. duramax on fire

    4" exhaust.

    Grill guard mesh
  7. duramax on fire

    4" exhaust.

    After running 65. Both loaded
  8. duramax on fire

    4" exhaust.

    Before fan clutch
  9. duramax on fire

    4" exhaust.

    25' camper. Probably 7 loaded down maybe. Running down highway is when it would heat up on me before I did the fan clutch. Stop and it would cool right back down. Any thing over 60 and fan runs more but stays cool. There is a guard on the front.
  10. duramax on fire

    4" exhaust.

    http://www.duramaxdiesels.com/forum/showthread.php?t=65135 Also this engine has some scoring in one cylinder. I don't think that would cause any heating issues. But so far cylinder holding up well. Still 400lbs. I just wasnt sure if the fan clutch running all the time was normal. JoshH says...
  11. duramax on fire

    4" exhaust.

    Stays cool. Runs up to 195-200. The. Fan engages and pulls it down to 180.
  12. duramax on fire

    4" exhaust.

    Fan clutch is new. Washed out the AC condensor. Pulled radiator and washed it when head gaskets were done. With bad clutch motor got up to 230 running ac
  13. duramax on fire

    4" exhaust.

    Ok thanks for all the advise. It was 101 while towing. Couldn't run AC last month because it would overheat. Bad fan clutch. So does a small tune hurt the trans or not
  14. duramax on fire

    LB7: 02 lb7 coolant leaking in cylinder, replaced cups twice.

    Anything is possible. Cracked hold down also. I changed head gaskets for a bad water that wasn't leaking externally
  15. duramax on fire

    4" exhaust.

    2003 sorry. Lb7
  16. duramax on fire

    4" exhaust.

    I've shearched all night. Still need answers. Seams like the mbrp is the best fit. But jegs is ok also. Will the 4" help cool the motor down and maybe get better mpg. Not having problems but fan engages on highway pulling load and stays engaged. Will exhaust alone give me more power...
  17. duramax on fire

    LB7: 02 lb7 coolant leaking in cylinder, replaced cups twice.

    Sounds like you know what your doing. Did you use a new copper washer under injector. Also I've read need to over torque some times. Maybe another 10 lbs. on the inj. Could also be a cracked head maybe.
  18. duramax on fire

    LB7: Spewing coolant in wheel well and down truck

    Have you tried a new cap
  19. duramax on fire

    Pressure in coolant tank

    you could pressure up the system and let it sit. If it looses then pull some glow plugs and see if any are wet. Also is there any condensation under the oil fill cap after its warmed up.
  20. duramax on fire

    2 stroke oil in fuel..??

    Just my 2 cents. It's the same as running full synthetic oil, good fuel filters, distilled water in radiator. You may not notice a difference in the way it runs but it is doing something. I don't think there's any way that a 1:50 mix of oil is going to hurt anything. I know guys that fill...
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