Engine Whistle
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Engine Whistle
I have a 2000 Excursion with 60,000 miles. I just started to have an issue with a high pitched noise comming from the engine. It only happens in the 2000 to 3000 RPM range. Sounds like a vacuum leak but I am not sure.
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From: Home Base Nebraska
I have had the same noise on my 2000 DRW when pulling, and its just when I'm slowing down the the trailer is pushing me. It will not make it when the truck is stopped and I have no other problems at all. I have on idea where its coming from but being its only when I have a real high vacuum situation so it may be something bypassing
Denny
Denny
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From: Long Island USA
Originally Posted by FordandCaravellz
Where can I find a diagram of the V10's vacuum system?
It's there on the sticker.At least, the emissions stuff is detailed, anyway.
I'd make sure the air box and air filter are fully seated.
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Come to think of it, I have noticed a lot more pep. I have crawled up onto the motor and tried to find a vacuum leak with no succes. On the next warm day I plan on tracking down all the lines that go to the throttle body. I wish it would fit into the garage.
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From: Lancaster, CA
last nite I helped bring home a 22 foot toy hauler for my sis-n-law, pulled it about 40 miles, some uphill grades, had to down shift into 2nd a few times, and notice that when the engine is at 4000rpms or more, this is when I hearing my rattling (or detonation noise)) or whatever it is that I am hearing. Had 3 other people in the truck and they heard it too. Funny thing, is if I drop back down into 3rd pulling about 2900 rpms, the rattling totally goes away (even when going uphill with that trailer behind me). What would cause such a high rpm rattling (pinging) sound from the engine like that? I've crawled on top and underneath this thing more than a few times and cannot find anything loose on the exhaust or anything. Only 48K miles on this engine too, so I am ruling out the famous V10 piston slap as a cause. I am totally puzzled. Other than this annoying (and scary) noise I keep hearing on and off, it runs perfect.
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From: Lancaster, CA
I hve a new fuel filter sitting on my bench in the garage, just haven't had time to put it on (other half has me busy with a major kitchen re-modeling project). This weekend for sure! Previous owner replaced the fuel filter about 13k miles ago.
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and, I will disconnect the PCM over nite (8-9 hours) and re-connect that in the morning as well, just to see if it resets something. Like I said before, I heard detonation (or something) the day I drove the truck home when I bought it, and still hear it after re-programming with the SC1715 and 91 octane.
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The problem with debuging in the driveway is the engine does not whistle without a load on the engine. In park just reving the engine there is no whistle. I need a small kid to stay under the hood while I drive the truck around town.
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I'd look for a small leak in the air intake system, I get a slight whistle from my 04EX V10 running the K&N FPKII system, but it is to be expected. I think that you have an air leak that is overcoming the noise control designed into the stock air intake system. Good luck