while i am driving the power will just fade

CHEVROLET BLAZER
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CATDABRAT
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2000 4x4 Blazer 170,000 for the past few months i would have to let the truck warm up before driving or it would take off slowly. Today i was driving into town and all of a sudden i could put my foot down on the gas but it was not going anywhere. The engine was still running, the rpms where still showing but no power. When i put my foot all the way onto the gas it started to make a pop sound under the hood or like a back fire sound. I was able to drive home after the truck sat for a bit but very worried about going to town again for this to happen.
Jun 18, 2007 at 6:44 PM
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E40WATER12
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Has youre truck had a rescent tune up?. Has the fuel filter & Air filter been changed?. Also sounds like youre youre coil packs could be acting up as well.
Jun 22, 2007 at 1:33 PM
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CATDABRAT
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well my engine light came on and today I had someone check out the codes, it was the master air flow sensor.. man said that once he disconnected it the blazer had all of its power.. so I have to get it changed out.. thanks for your help :)
Jun 22, 2007 at 10:57 PM
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