Junior9009 Posted September 28, 2015 Share Posted September 28, 2015 My 89 R688ST with E6 350 9-speed maxitorque will surge after upshifting or when driving real slow in a parking lot, field etc. I usually recover from this by either getting of accelerator or ride the clutch. Thinking maybe the throttle linkage at the injection pump? I replaced the clevis pin with a bolt ( shaft on pin was worn) and a castle nut with cotter pin. Still seems to be slop in the linkage though. Any input is appreciated. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/41975-surging-while-getting-back-into-accelerator-after-making-a-shift/ Share on other sites More sharing options...
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