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Originally Posted by pvtcook
Just bought a 87 bseries. The truck runs fine @ lower/higher rpms. Its at the mid rpms that it feels like its kind of hesitating.(jerky acclereration in 1st/2nd gear) If I push it on down it does fine. I unhooked the EGR and plugged the line and that seemed to help but not completely. It is also alot worse when the engine is cool.
Im new to Mazdas and would appreciate any help.
Thanks
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I have a 1988 B2200 that does a similar thing. It bucks and jerks when you accelerate between the gears 3,4, and 5. I changed the EGR, O2 sensor, tune up, cat with new exhaust, etc and it is still doing it. The carb is 4 years old. Don't know where to go from here. I have seen othe postings like ours with no help from the group at all. Are you still having your problem.