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Discussion Starter · #1 ·
It drives fine up until I get up to 40 mph then it seems to want to jerk before accelerating when I go to give it a little more gas almost like it has a hesitation, but it won't do it if I give it enough to put it in overdrive. I'm thinking it's either the transmission or the top half of the engine since I had a new block put in the only thing is it's not throwing any codes. If any of you might know the possible cause of this I'd greatly appreciate the help on figuring this one out.
 
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