Eratic engine miss
I have a1988 accord with an eratic engine miss while cruising in any gear at any speed. But the miss goes away when you rest your foot on the clutch peddal just enough to disengage the cruise cancelle switch. Got any ideas?
It could be worn or fouled spark plugs, bad plug wires, a weak coil, dirty injectors, low fuel pressure, an air leak, etc. A bunch of stuff. Misfires are hard to diagnos, especially intermittent problems.
First, inspect the wires for obvious signs of damage (burned or cracked insulation, chaffing, contact with the exhaust manifold, loose plug boots or terminals, etc.). If the wires are ancient and show obvious signs of deterioration or damage, you’ve probably found the problem. Replace the entire wire set.
If not, start the engine, then look and listen for arcing while the engine idles. A snapping or cracking noise would tell you secondary voltage is finding a shortcut to ground. Observing the engine in the dark may help you see where the voltage is leaking. Any fireworks that are visible along the length of the cables or at the plug boots, coil tower or distributor terminals would tell you one or more wires need replaced.
I guess you will have to blindly troubleshoot it. Get your plugs out. If the plug isn’t fouled or does not have a cracked insulator, replace the plug wire and see.
sorry
fs
First, inspect the wires for obvious signs of damage (burned or cracked insulation, chaffing, contact with the exhaust manifold, loose plug boots or terminals, etc.). If the wires are ancient and show obvious signs of deterioration or damage, you’ve probably found the problem. Replace the entire wire set.
If not, start the engine, then look and listen for arcing while the engine idles. A snapping or cracking noise would tell you secondary voltage is finding a shortcut to ground. Observing the engine in the dark may help you see where the voltage is leaking. Any fireworks that are visible along the length of the cables or at the plug boots, coil tower or distributor terminals would tell you one or more wires need replaced.
I guess you will have to blindly troubleshoot it. Get your plugs out. If the plug isn’t fouled or does not have a cracked insulator, replace the plug wire and see.
sorry
fs
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