strange noise part 2

flatlander

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Way back when I mentioned that TDT all of a sudden got very loud (cummins loud) and then it stopped so I didn't worry about it. The other night it did it again but stopped. Then yesterday it did it and stayed like that. Now I can describe how it acted.

It sorta was like how a carbureted vehicle thats not quite right takes off. You hit the pedal and it acts sluggish then goes. There was definitely a loss of power. Then when I got home and shut it off it didn't just stop dead like normal there was a 1/2 second "die off". Hard to describe.

I wonder if somehow it isn't jumping time. Is that possible? I'm leaning toward the IP, but I don't want to just start swapping parts.

Oh, and on cold start up it runs real rank for a few seconds (about 15) and then instantly jumps into a smooth idle.
 

stiesel

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by cummings loud do you mean the exhaust noise or the engine/mechanical noise. when was the last you had the valve covers off. you might want to take a look under them it's cheap and fairly easy to do..
 

flatlander

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I'm talking about engine noise. Valve covers were off 2000 miles ago when it was rebuilt.
 

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