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  1. 6.5L Diesel Engine
    1994 3500 6.5TD. No Fault codes Replaced: fuel injectors / glow plugs and glow plug controller / fuel shutoff sensor / batteries and battery wires / cleaned ground terminals. I tested lift pump and bleed the air from fuel filter. Both working. I have loosened the T fitting from the front of...
  2. Duramax Second Generation: 2004.5-2005 (LLY)
    So long story short I bought an 05 2500 with a screwed motor and bought an 04.5 LLY that was out of a C5500, swapped all necessary items and opted to stick with the 2500s injectors (new reman), wiring harness and other modules to ensure there wouldn’t be any issues. Now trying to get it to fire...
  3. 6.5L Diesel Engine
    Background: 1995 GMC C3500 Crew Cab Dually 6.5L TB with the 4L80E with 248,xxx miles on it I have a question about blow by, if the truck has a lot of blow by (i dont know what deams as alot of blow by but its kind of puffing out of the filler neck and the oil dipstick tube) does that mean that...
  4. Duramax Second Generation: 2004.5-2005 (LLY)
    I have a 2005 lly duramax. I see on top of the y bridge that there is a Bolt with lock tight replacing the temp sensor so I have a check engine code for it. Any idea where to look for to find the connector that plugs into the sponsor which is a grey plug because it’s not on top of the motor or...
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