Rick's Free Auto Repair Advice

Posts Tagged: P0606

Ford idles too high

Fix high idle speed – Ford If you have a high idle Ford or Lincoln Mark LT truck with the 4.6 or 5.4 engine, this may be your fix. Ford has issued a service bulletin to address a high idle Ford problem and an intermittent hard start condition. The problems may also set a P0606 trouble code. This may be caused by software issues. To diagnose the problem, clear the codes and run the standard KOER tests. If the code resets, this bulletin doesn’t apply. However, if it does reset, … Read More


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