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26/09/2021 8:53 pm
Topic starter
1999 chevy tahoe , 220,000 miles on it code po300 i replace plugs, wires, distributor cap and rotor still idles rough and is very lean or rich can you help pls
1 Answer
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26/09/2021 8:57 pm
Take a look in the FAQ.
Which engine do you have?
