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Old 11-04-2006, 15:41   #1 (permalink)
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(2 Crown Vic mileage drop off

I have a 92 Crown Vic LX in great shape with only 63000 miles. I have had it since 9000 mi and it has been a very good car however, I have noticed recently that the gas milage has dropped off 3-4 mi a gallon. I could try changing the plugs as they have been in it for 50000. they are Boesch single prongs. I have also noticed a slight “lugging” at lower rpm ranges in the highest gear. I also have a clean K&N air filter. I use reg unleaded, change the oil regularly with synthetic and have also used slick 50 when I first got it. The car does not receive any dealer maintenance but, I do keep it up well. I was wondering if you knew of any such item that should be done such as valve adjustment or anything which might contribute to my concerns. I am also wondering could it be the intake air temp sensor. If anyone has any ideas please let me know,,,Thanks.
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Old 11-05-2006, 04:03   #2 (permalink)
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Re: (2 Crown Vic mileage drop off

Change the plugs! Throw away the bosche plugs and get motorcraft. At least my 92 likes them better and it hated the bosche.
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