plase help
#1
plase help
Got a 90 Silverado that is running poorly...It runs a bit like it has a very heavy trailer behind it. Doesn't seem to be missing but chugs along done all I can think of but still no change. 02 sensors fuel pump map sensor. there is one thing that is odd if the turning signal is flashing runs fine if I hold the window up botton it also runs fine does any one have any ideas where to go from here?
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