Question about 1999 Ford Expedition
I own a 1999 Ford Expedition Eddie Bauer with 115,600 miles on it. Shortly after I start the vehicle, I get a loud sound from the engine that continues for about 5 or 6 seconds then disappears. It always seems to happen after starting the vehicle cold, but today, after driving the vehicle for 30 minutes, and stopping for 5 minutes at someone's house, I got back in the car, pulled away and the sound returned for the same length of time. I thought it might be a timing belt (the vehicle apparently has a timing chain) or a loose belt on a fan or something. My mechanic couldn't find it and when I called him back after it persisted, he suggested it might be a pulley on a fan at the front of the engine. Any thoughts?
I'm guessing that you Expedition has been making this noise probably since you've had it? Even if it hasn't, I think I can bring you some comfort. If you could pinpoint where the noise was coming from under the hood, would you say that it's somewhere over on the passenger side? My dad owns a 1998 Ford Eddie Bauer Expedition, and we noticed a loud noise with the same habits as what you're describing. Come to find out, there is an air compressor under the hood, I can't remember exactly what it's for, but the sound that I believe you're hearing is the compressor filling up with air and then shutting off once the proper amount of pressure is reached. You might try popping the hood to try to locate the exact place that it's coming from, but I can tell you that it's probably a 99% chance that when you find your noise, you'll find the compressor I'm referring to. Hope this proves to solve your issue and helps to ease your worries. Have a wonderful evening!
Posted on Nov 24, 2008
Altenator belt screeching ,tighten the fan belt if you can as some vehicles are spring loaded and cannot be tightened like the old V belts
Posted on Nov 24, 2008
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Posted on Jan 02, 2017
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