I got a 97 1500 46re
sometime When i lightly get back on the throttle going downhill or slight decline going 45 to 60 truck seems to jerk and buck.it does it more if i take it out of od and doesnt seem do it if i coast or go half throttle or so rpm gauge doesnt move any one know what this might be

 

Could be an engine miss, or, maybe TCC bounce? But, if the tach doesn't really change.... Hhhmm....

How is your plenum? Last time you had a tune up?

 

I did the plugs only little while ago but it was happening b4 that and the plenum it has the orignal but last time i looked couple months ago it wasnt pooling

 

Any codes? How old are the O2 sensors?

 

Did the check engine flash code check and got normal codes 12 for battery disconnected and 55 done reading. Havent replace the 02 sensors and dont think they have been. Sometimes i could drive 20 miles to town and back and it wont do it except until i coast down a hill were the speed slows down to 45 and were i got to get back on gas a little like 1500 rpm or so it does it but if i let it just coast there it wont or if i put pedal down a lil bit it further wont do it either

 

Wonder if the TPS has a dead spot??

 

You know that could be ill check that today burrow a meter