01 S10 hesitation at crusining speed
I have a 01 Blazer, 4.3, all wheel drive, Auto, 80K. The trans was rebuilt a year ago.
I have a hesitation at crusising speed and accelaration. At a constant speed the car hesitates, bucks etc. It idles great and runs great other than that. I'm running out of ideas. I have recently replaced Plugs, wires, dist cap and rotor, and the crank pos. sensor. Ran Seafoam through the gas. I know it's hard to diagnose over the internet, but anyone have any idea? Oh, no codes. No check engine lights. |
Maybe the catalytic converter, knock on it see if it rattles or see if you have a sulfur smell in your exhaust.
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SEAFOAM melted my Cat Converter in my 97 Blazer 4x4. It started running poorly at speed & I took it to a muffler shop & they found the converter melted inside. It wasn't long after running Seafoam in it.
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Since you replaced the crank sensor maybe take it to the dealership to have them plug their computer into it to adjust the Crank / Cam sensor. "Case" relearn I think it's called.
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