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Originally Posted by aqua190
start with the simple things first. you said you washed the engine. pull the coil leads and chk to make sure they're not damp or wet. also, chk the visible sensor connections to make sure water didn't get in them either. might be a good idea to clean the contacts of all while you have them apart. then at least you can start to rule things out cheaply.
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I will try to check the plugs today after work. Odd thing is after washing the engine, the engine was runnig for at least 30-40 minutes and driving perfectly fine.
Drove the car to work today. Still has the hesitation, although not as bad as it was at times yesterday, but not good.
Last night I sprayed the MAF with some electric component cleaner, bought at Advance Auto Parts. Disconnected the battery for a few. Everything is the same. Car starts right up with no problems.
I started the car this morning and it started up no problem. Most of the hesitation occurs in the mid-RPM range, around 2,000RPM. If you need to pass someone or when it starts hesitating, you bump up the throttle and it revs up to 4,000rpm with no trouble. Still does not feel like it has the same power, a little less than normally.
If it were the plugs or something wouldn't it be consistent throughout the RPM range? The hesitation is intermittent.