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Discussion Starter #1
so i bought my 6.5td suburban 2500 back in September or so and we had to assemble the engine and put it in the truck and ever since we got it when the truck would reach a speed it would start to miss or stumble and after we got it back home it cleared up but it started again and we changed the lift pump and its doing it more than it was we have replaced one injector that had build up around it it would only do it at 50 55 but when it hit 60 it would clear up and go on (truck will not accelerate while its doing this you have to back off the gas and ease back down on it) it also had half a tank of bad fuel that had been in the truck for ten plus years could it be that i thought it was where the turbo wasn't dumping right but the truck doesn't black smoke when it dose it, we also recently put a can of sea foam, and lucas injector cleaner in the tank and it started smoking when stated up on cold mornings is that normal for diesels to do that with the mixture
 
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