Hesitation during acceleration.
4th Gear Member
Joined: Nov 2008
Posts: 2,614
From: under the hood
My car is about as stock as you can get including the exhaust. Not being a real mechanic I feel that replacing the O2 sensors would probably be way over my head. I priced the O2 sensors at about $90 each for a AC Delco from O'reilly. I'm not sure how many O2 sensors the car has but at $90 a pop that's an expensive guess. Sounds like I'll have to take the car in to a mechanic to have it looked at. I still plan on doing the TB cleaning and Fuel filter this weekend as I'm not sure when they were done last and like you said it's good maintenance. It's good to know going into it not to get my hopes up. I appreciate the help.
$90 for a single O2!!!!!!! my goodness gracious your local parts place is making high margins
NTK (NGK) and Bosch are perfectly fine O2's
you'll get others who tell you they are junk but the Delcos haven't lasted me any longer than the NTKs and Bosch. I've used them all. Years ago there was some merit into buying Delco parts but not so much any more.
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In the Staging Lanes
Joined: Mar 2012
Posts: 61
From: Texas, USA
Ok this past Saturday I went ahead and cleaned the throttle body (It was pretty dirty) with some B12 ChemTool and replaced the Fuel Filter with a new AC Delco one. While I was cleaning the throttle body I also used about half a can of CRC Mass Airflow Meter/Sensor cleaner to clean the MAF sensor. 3 days later and I haven't had any hesitation. The car is also running and idling much smoother. I didn't think the car was running poorly before but with how well it's running now it's apparent it was. I wanted to thank you all for your suggestions and pass along some info on what fixed my problem for future viewers.
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