Join Date: Oct 2007
Location: Fort Bragg, CA
Thanked 73 Times in 49 Posts
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I would hesitate to point the finger at the engine compression. Not likely. If the engine doesn't make adequate compression, it will have a tough time starting. Once running it should make power even if the rings are worn. If you have a bad valve, the engine will have a "miss" and cracking injector lines will determine which one it is.
But most likely it's either an air delivery issue, or fuel delivery issue. I'd check all the turbo boots, feel around the exhaust manifold for leaks, and if you haven't, scan for codes. Can't hurt to check fluid levels and conditions, either, especially the transmission.
If you have a boost leak, or preturbo exhaust leak, the boost sensor will prevent fueling, making your rig anemic until it revs up. Otherwise, +1 to above responses.
01 100hp tips EZ *hybrid* 4"ss BDbrake &steering brace "t"steer delphi tapped &rammed manual CAD 3.55's LSD, 1.375 nv5600/241HD Valair single pc rear ds 265x70r19.5 big rigs 3rd gen brakes Ugly black and thrashed!