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Old 01-13-2003, 02:08 AM   #1
Prerunner1982
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bogging after truck upshifts...

ok... let me attempt to explain this..

when i get on it my truck will shift into what is commonly known as passing gear..truck winds up then takes off... just fine.. but when it downshifts it bogs, will pick up when i let off... any ideas as to what might cause this? other than that, truck seem to run really well... ask riptide.. he liked the sound of it!

thanks for any help

Jon
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1982 Chevy Silverado 350/th350.... RETIRED
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Old 01-13-2003, 03:58 AM   #2
79BIG10
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When you get on it the carb's linkage activates the kickdown cable (you got a TH350 right?) which makes it downshift to the 2nd gear (passing gear). When the tranny downshifts the carb is probably at full throttle. This is the problem. You're getting plenty of fuel but not enough air. You need to adjust the secondaries for more air. The Q-jets have such large secondaries they need more air to combine with the fuel to compensate for the larger barrels. I don't know for sure how to compensate for this but I think that Swervin may have a better way to help you on that.
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Old 01-13-2003, 04:15 AM   #3
Prerunner1982
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*lightbulb* dirty air filter? i need to clean out my K&N tomorrow.. see if that helps...
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1982 Chevy Silverado 350/th350.... RETIRED
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Old 01-13-2003, 04:32 AM   #4
79BIG10
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Not just that but may need more to do with the actual fine adjustment screws.
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