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Re: 1998 blazer runs well except on hills?????
The fuel pump was really loud, not just normal wine/hum sound, and also was suspected of the power loss on hills. then when that didn't work a mechanic guessed at the tps. Fuel pressure is good. no light ever comes on, and i am always keeping an eye out for it. no miss fire just wont accellerate on hills, you push the petal and then nothing push a little more then a short burst of acceleration and back to 1300-1500rpm and repeats
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