Rough idle etec 90

Old 01-02-2019, 10:16 PM
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Default Rough idle etec 90

Whats the best solution for a rough idle on an etec 90 motor?
gdad58 is offline  
Old 01-02-2019, 10:20 PM
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Probably need a tad more info, are the plugs the correct type, new and indexed? did this just start happening? is the fuel OK?
noelm is offline  
Old 01-03-2019, 05:38 AM
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A compression check may be your best first troubleshooting procedure. When was the last time the muffler filter was replaced? As mentioned before, plugs are the most common culprits in poor idle situations. Engine temperature being too low is often the 2nd most common. Check the head temp and thermostat. Are you running on old fuel or fresh?
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Old 01-04-2019, 04:15 PM
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Bring it to a mechanic
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