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Message: <blockquote data-quote="bigcountry78" data-source="post: 3445" data-attributes="member: 17"><p>I've noticed this year that whenever I turn the AC on it causes the truck to kind of stumble on acceleration. Its notbad by any means, but I notice it. I've read that there is an idle control sensor that could be causing it but I've never dealt with one before. I've just been leaving the air off but since I've decided to run this truck into the ground I'd like to fix this. If I turn the air off the trick runs perfectly, but turn the air on and the hesitation, or surging I guess, starts immediately. I just feel like the air is adding more strain to the engine than it should be. Any suggestions? Truck has a 5.3 with 175k, with new plugs and wires, throttle body and MAF cleaning at around 155k. Thanks.</p></blockquote><p></p>