Sound after turning engine off
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Joined: Jan 2008
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Sound after turning engine off
I have couple of newby questions. I just bought a 05 f250 last weekend.
I have a pumping sound after I shut the engine down that lasts for about 10 seconds. I have had the truck a week and I am not sure if this is normal or not. I kind of sounds like a small pump. I thought it might be pumping oil to the turbo to assist with spooling it down, but I am not sure. Is this a normal sound. It is pretty hard to figure out where it is coming from.
I have also noticed that if I turn the engine off with the AC on Max the next time I turn it on the air will not blow. I am pretty sure this is not normal, but have no idea where to look. Is there a vacuum actuator or something that is acting up?
I have a pumping sound after I shut the engine down that lasts for about 10 seconds. I have had the truck a week and I am not sure if this is normal or not. I kind of sounds like a small pump. I thought it might be pumping oil to the turbo to assist with spooling it down, but I am not sure. Is this a normal sound. It is pretty hard to figure out where it is coming from.
I have also noticed that if I turn the engine off with the AC on Max the next time I turn it on the air will not blow. I am pretty sure this is not normal, but have no idea where to look. Is there a vacuum actuator or something that is acting up?
Posting Guru
Joined: Apr 2008
Posts: 2,392
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From: Green Lane, Pa.
You might also hear the turbo rotating to a stop.
Posting Guru
Joined: May 2003
Posts: 1,990
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From: Middleburg, FL
Not that I'm aware. I believe it's purging the injectors of oil to keep them from gumming up and provide for improved cold starts.
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LFDavidson
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Nov 26, 2011 10:06 AM
