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homer_simpson_gw

Lack of power up hill

homer_simpson
17 years ago

Working on a 91 suburban 4x4 350 throttle body...It idles great and seams to run fine till I hit the gas and theres like a hesitant and it wont build up the rpms...I checked all the wires plugs rotor cap egr everything seams fine.(these been replaced about 6 months ago) Could it be of the cat being clogging up even if it doesn't smell???also I notice a puff of blue smoke when I start it and it goes away in a second...from bad seal I would think...But I can't figure out why it seams to be holding back on me...also could the fuel filter have this affect on a throttle body??? thanks for any input on this...

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