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Old 09-06-2009, 10:15 PM   #1
gunner0352
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Join Date: Sep 2009
Location: castro valley, California
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90 s10 blazer 4.3L stalling, erratic idle.. please help!

I thought at first that i ran the fuel too low and clogged up the fuel filter with crap from the tank. I've pulled it off and checked it and it seems fine. now everything i see is somewhat vague.. "MAP sensore, MAF sensor, TPS, Dirty Throttle body"..

it starts fine, but will not idle. even if i give it a little gas and hold it stable, the RPMs are erratic, up and down. if i give too much gas too fast, it bogs down. If i let off the gas, the idle drops to stall. If i "feather" the accelerator, i can get it up to higher RPMs, but it will sputter a bit and start dropping.

Please someone give me a more certain answer, I dont have the money to guess my way through this. Thanks
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