Whining sound in engine
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Junior User
Joined: Mar 2010
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Whining sound in engine
Guys,
Yesterday I started my truck and I noticed a somewhat low pitch whine coming from under the hood. It did it at idle and if you give the truck a little gas you can hear it to. Once in drive it sounds like it goes away but between road and engine noise it's hard to tell. It sounds like it is coming from the passenger side. I popped the hood and it sounded like maybe a bearing on the alternator pulley but I can't pinpoint the noise. One time It sounds like it's coming out of the turbos, then you think it's up in the front of the motor.. I thought maybe even a bearing in the fan clutch. It's just hard to pin down a sound like that with all the sound coming from that motor.
Anyone else out there have a similar issue?
Yesterday I started my truck and I noticed a somewhat low pitch whine coming from under the hood. It did it at idle and if you give the truck a little gas you can hear it to. Once in drive it sounds like it goes away but between road and engine noise it's hard to tell. It sounds like it is coming from the passenger side. I popped the hood and it sounded like maybe a bearing on the alternator pulley but I can't pinpoint the noise. One time It sounds like it's coming out of the turbos, then you think it's up in the front of the motor.. I thought maybe even a bearing in the fan clutch. It's just hard to pin down a sound like that with all the sound coming from that motor.
Anyone else out there have a similar issue?
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Junior User
Joined: Mar 2010
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It was the alternator, it was darn near froze up... I hate to say it but it's sad that a truck with a $55k msrp has stuff like this fail at 75k miles!!! And then the fact that you have to rip half the front off the truck to get it out...
Laughing Gas
Joined: Dec 2012
Posts: 1,035
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From: Alberta
Well, 75K miles isn't that old, but at the same time, depending on the year of your truck, the alternator may be 8 years old.
As for changing it, I find it much easier to access by removing the right front wheel and inner fender.
As for changing it, I find it much easier to access by removing the right front wheel and inner fender.
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Junior User
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That's what I did to pull it out. I ended up taking the air intake out also so it was easier to get the wires off and stuff. Everything in that truck is just packed in there and not practical to work on.
Senior User
Joined: Aug 2015
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I find it a little comical when i hear people talk about engine compartment configurations. Compared to boats, vans, and some import L4 engines, these trucks are pretty easy to work on. No doubt, there are layers of components, but there is plenty of room to turn a wrench.
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Junior User
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I can tell you I've never pulled the body off my eclipse or sti to change a fuel pump... Comical is saying these trucks are practical to work on.
Also I changed the alternator on my eclipse in about 15 minutes. Fact is these trucks are just not made for everyday people to get under and work on.
Also I changed the alternator on my eclipse in about 15 minutes. Fact is these trucks are just not made for everyday people to get under and work on.
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Senior User
Joined: Aug 2015
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eh, i guess it's just a matter of opinion. sure cars are easier to work on, but then they don't haul 15k pounds and they don't look as good either
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More Turbo
Joined: May 2015
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From: Nampa, ID
Okay, rant over.
Senior User
Joined: Aug 2015
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You can climb on top of, get to the sides of, slide underneath of the whole thing. it is what it is I say. it might be easy to change the alternator, but impossible to change the AC compressor. makes no difference to me which one is which lol
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