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2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

5.7 350 TBI Surging RPMS

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Old November 25th, 2011 | 9:53 PM
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Default 5.7 350 TBI Surging RPMS

Hello, I want to thank you a head of time for any help given!
My 350 is having surging engine speed problems. I have replaced the coil pickup on the distributor, cap, rotor, plug wires, and plugs (Bosch Platinum). The engine will randomly drop rpms and about stall then jump up higher than normal and back to normal. It does it while driving and at idle. It will stall at idle. It only does it sometimes more and more recently. I really need this to run right. It is a TBI. The only thing I've checked so far or know to check is the spray of gas into the throttle body. It is fine and stays normal when the rpms drop it never slows down or has an odd spray. Again any help is much appreciated. Thanks, Spencer
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