94 Explorer Sudden Decrease in Gas Mileage...any ideas?
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Joined: Mar 2005
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94 Explorer Sudden Decrease in Gas Mileage...any ideas?
My '94 Eddie Bauer has recently suffered a huge decrease in fuel economy. In October I was getting 330 miles per tank, and now I'm lucky to get 220 miles out of a 16 gallon tank. Check engine light come on and off intermittenly, and I think I've lost overdrive.
Any ideas what the culprit could be? Any help/suggestions would be greatly appreciated! I just found this site last night, what a great resource!
Any ideas what the culprit could be? Any help/suggestions would be greatly appreciated! I just found this site last night, what a great resource!
Posting Guru
Joined: Apr 2003
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From: West Chester PA
Have the codes pulled. There's a sticky in the ranger forum with instructions to use an analog voltmeter or a paper clip to get the codes. All kinds of sensor problems could cause fuel efficiency problems.
Here's a link to the ranger thread...
https://www.ford-trucks.com/forums/s...d.php?t=107538
Here's a link to the ranger thread...
https://www.ford-trucks.com/forums/s...d.php?t=107538
Posting Guru
Joined: Aug 2000
Posts: 1,984
Likes: 2
Second thing after pulling codes, is to pull the vacuum hose off the fuel pressure regulator, and see if raw fuel is present. If the diaphram starts to leak on the FPR, fuel will be sucked into the intake manifold, causing rich codes and ruining fuel mileage.
