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Ron, ASE Certified Technician
Category: Mazda
Satisfied Customers: 35473
Experience:  35 years as a automotive tech
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Mazda B3000: Mazda b3000 03 dualsport high idle erratic shifting

Customer Question

Mazda b3000 03 dualsport high idle erratic shifting no kickdown no power 2nd gear clunk
Submitted: 1 year ago.
Category: Mazda
Expert:  Ron replied 1 year ago.
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
Two common causes of high idle concerns and rough shifting can be caused by either a dirty and sticking IAC (idle air control ) valve and or a failing Throttle positions sensor. I would start first with removing the IAC and giving it a good cleaning and monitor the TP signal while the problem is occurring, if the signal is erratic then replace the TP sensor.

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