1993 Ford Crown Victoria 4 6 Ltr Engine Engine Idle Decreases Increases More

1993 FORD CROWN VICTORIA
74,000 MILES
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I have a Crown Victoria with the 4.6 ltr engine. The engine idle decreases and then increases and is more pronounced when there is no load on the engine. This occurs even when the engine is warm. What is the issue?

Mike Chmelik
Jan 8, 2013 at 7:58 AM
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HMAC300
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  • 48,601 POSTS
try cleaning throttle plate on both sides with choke cleaner then check fuel pressure.
Jan 8, 2013 at 8:10 AM
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