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343 Posts
Discussion Starter #1
reacently my truck started sounding like it was dropping cylinders (maybe). I'm in park giving it some gas and holding say around 2000rpm i get a good sounding motor but every second ( its intermitent ) or so i hear a "bump" like a cyl misfiring.
The motor is STRONG on accelerating but at idle or holding an rpm it does it.
I gave it a tune up not to long ago ( plugs, cap, rotor, wires ). And it started like a month after.
What could cause this ?
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