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Truck just started idling rough, to the point of acting like its running on two or three cylinders instead of 8. Under a low load does not respond well at all, but when given more gas comes out of it and revs up strong and runs strong.
I just put 3 gallons of gas in it when it was nearly out instead of filling it up two days ago. Drove it yesterday for 5 or 6 miles and noticed something didnt feel quite right at a idle. Today it started doing what I stated above. Could it be bad gas, or is there a vacuum problem etc?
Can somebody please give me some sound advice for me to troubleshoot and fix this?
New plugs and wires 6 months ago with new dist. cap, rotor, and coil. I just put a bottle of heat in last night so hopefully that will take care of any gas problems. If that doesnt fix it then it must be a vac. line has come off somewhere or cracked I would guess.
Take an old piece of garden hose or something and put it to your ear, listen around with the engine running to help find the leak, if thats the problem. Keep us posted..