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ruff. Service engine soon light flashing. Ran computer scan, results show code #PO302 and PO157. Replaced plugs and wires. Little better but still ruff and same codes coming up.160,000 miles. Help!!
engine? I have one port open and one vacuum line hanging and can't find where they go. The car just started to run ruff with the "service engine soon " light flashing. Thank you-
Chevy suburban. Plugs, wires, air & gas filters and what else? Is there a distributer cap and rotor ? Car has been running perfect for past 6 years. Haven't changed anything. Also where is gas filter? Inline on frame or on carb. Thank you.
I'm guessing that there are coolant lines going back to for the rear heating, how do I get to them? Thank you-Alan