2008 Expedition Getting HORRIBLE Gas Mileage All of the Sudden! - Diesel Forum - TheDieselStop.com
2008- 2010 Gas Engines Discussion of the gas engines available in the 2008- 2010 Super Duty trucks

 
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post #1 of 2 (permalink) Old 08-06-2013, 09:39 AM Thread Starter
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2008 Expedition Getting HORRIBLE Gas Mileage All of the Sudden!

I have a 2008 Expedition that I bought last summer and everything was okay on it for almost a year.

This summer, the gas mileage is all of the sudden in the toilet.

Edmunds says it's supposed to get 14 mpgs

2008 Ford Expedition MPG - Gas Mileage Data | Edmunds.com

And it was getting that or better, but now it's getting 9ish, if that. It seems like every time I take it down the road I'm putting gas in it. It also has a ticking sound. The oil pressure is good, it's not overheating at all.

Someone on another forum suggested that it might have a dead cylinder but no one could really tell me how to check for that...ideas?
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post #2 of 2 (permalink) Old 08-06-2013, 12:12 PM Thread Starter
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I was also told that it could be a bad injector? Would that cause a noise though?

My dealer has them for 32ish a piece Parts Search - BlueSpringsFordParts.com

So possibly an easy and cheap fix, but again, not sure about how to test.
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