cly 3 & 7 failed cyl cut out, please help!

[evanlarade]

Just wondering if theres something I can check or do I need to do a rebuild, Did injector buzz test & they all passed!

[Patrick Feeley]

Was the truck up to operating temperature when you did the cylinder contribution test? How many times have you run it (sometimes you'll run it and get completely different results). What are the truck's symptoms (in other words why did you run the test)? Cheers!

[evanlarade]

Smokin in the mornings, have 2 new injectors, uvch, glow plugs & relay,all new injector o-rings, new oil.