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99 Avalon Engine Miss
I have a 1999 Avalon which develops a bad engine miss after driving 20-30 miles on the interstate above 60mph. There are no check engine lights or codes, but the dealer replaced the plugs and wires. This did not fix the problem. After the engine begins to miss, it will run rough, even at low speeds until the engine is turned off. The dealer is clueless and won't drive it long enough to reproduce the problem. Anyone know what can cause this?
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