Recently changed spark plugs but kept original wires. Car ran fine for about a week. Now starts and runs fine at low speeds but idles very rough and shakes violently when speeds exceed 45mph. Wondering if this is transmission related since it only happens in certain gears.
Recently changed spark plugs but kept original wires. Car ran fine for about a week. Now starts and runs fine at low speeds but idles very rough and shakes violently when speeds exceed 45mph. Wondering if this is transmission related since it only happens in certain gears.
- rjpfish2, Nelsonville, OH, US