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2006 GMC Sierra 2500 series replaced throttle body sensor and fuel pump getting fire and gas but will not start

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Do you have spark at the spark plugs ? Also are there any lights lit on the instrument cluster , check engine , SECURITY ? What throttle body sensor did you replace ? TPS -throttle position sensor ! What engine does yours have because there are a few options for this vehicle , 4.3 , 4.8 , 5.3 , 6.0 L !

Posted on Apr 12, 2015

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2006 GMC Sierra 2500 HD replaced throttle body sensor and fuel pump getting gas and fire but will not start


Is it turning fast or slow when cranking..check for compression that might be low hence non-start.You can try pouring a bit oil in all cylinders by the plug holes becareful too much oil might result in a lockup due too high compression.If not check your timing belt

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