Question about 1993 Chevrolet Suburban

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Loss of power replaced plugs,wires,cap and rotor button 93 suburban.Has more power when cold at low speeds. powerbrake when cold 2100 rpm,same when operating temp only 1500 rpm.

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Check TPS (throttle position sensor) when cold the vehicle coolant temp sensor signals to the engine control computer to push more fuel which could be causing you the extra power felt,a bad may sensor could also be an issue as well,internal distributor parts as well could be a failing fuel pump, one that "warms" up a bit and wont push as much fuel, i have actually encountered that issue a few times in my own vehicles as well as that of others

Posted on Jan 31, 2010

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Posted on Jan 02, 2017

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