# Hesitating while accelerating

**URL:** <https://community.cartalk.com/t/hesitating-while-accelerating/76037>\
**Category:** Maintenance/Repairs\
**Tags:** isuzu\
**Created:** [December 9, 2012, 11:06pm UTC](https://community.cartalk.com/t/hesitating-while-accelerating/76037 "2012-12-09T23:06:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AWIsuzu](https://avatars.discourse-cdn.com/v4/letter/a/f0a364/32.png) [@AWIsuzu](https://community.cartalk.com/u/AWIsuzu)\
**Post date:** [December 9, 2012, 11:06pm UTC](https://community.cartalk.com/t/hesitating-while-accelerating/76037/1 "2012-12-09T23:06:17Z")

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I replaced the water pump, power steering pressure hose and pump, and fuel filter. I degreased the engine at a car wash and rinsed with the power hose. Now when I drive it chugs/hesitating from stop to accelerate. I took it to a shop who hooked it up to the machine MAF & map sensors working correctly but the computer is not controlling them. What can I do?

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**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\
**Post date:** [December 9, 2012, 11:13pm UTC](https://community.cartalk.com/t/hesitating-while-accelerating/76037/2 "2012-12-09T23:13:16Z")

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I bet you got water in where it should not be or knocked something loose. How long has it been since you washed the engine? Does this car have a rotor cap? If so remove it and dry it out.