Any Help for Alternator Replacment! - Hemi Truck Club
 
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Old 01-05-2012, 04:42 PM   #1
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You folks were right when you dianosed the problem with my 2004 hemi noise being the Alternator. It is a bearing going south.So here is where I could use some help. I've decided to do the work myself and order a new Bosch unit $134.00 online with Amazon.I watched the u tube install for a 03 Ram and am confused about the 4 bolt bracket that the alternator shares with the AC compressor. The install video shows that the 4 bolts have to be removed incl. the 2 main bolts.and if so will that lossen up the compressor? Have any of you done this replacement and what I should look out for.

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Old 01-05-2012, 04:42 PM   #2
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You folks were right when you dianosed the problem with my 2004 hemi noise being the Alternator. It is a bearing going south.So here is where I could use some help. I've decided to do the work myself and order a new Bosch unit $134.00 online with Amazon.I watched the u tube install for a 03 Ram and am confused about the 4 bolt bracket that the alternator shares with the AC compressor. The install video shows that the 4 bolts have to be removed incl. the 2 main bolts.and if so will that lossen up the compressor? Have any of you done this replacement and what I should look out for.
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Old 01-05-2012, 05:14 PM   #3
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I've gone through two noisy alternators on my '03 now. I didn't have the sack to do it myself though, I paid the $$$ to have a shop do it. Good luck.
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Old 01-05-2012, 05:26 PM   #4
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I'm glad we gave you the correct diagnosis

Did you ask the dealership how much the labor would be for them to do it?

I'm sure one of our members (Dave) has the excerpt from the service manual!
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Old 01-05-2012, 05:50 PM   #5
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its really not that hard just remember to draw a diagram of how the belt goes from pulley to pulley if there is not one posted on the truck.I just changed mine over the summer unfortunately i dont remember how many bolts i removed .
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Old 01-05-2012, 06:17 PM   #6
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Shouldn't be too bad. You may need to support the A/C compressor while it's loose. It's been a while since I changed an alternator, but on the F-150 I had I got it down to under 30 minutes.

FYI, you can have them rebuilt for less than the replacement. I had the one on my Ram Wagon rebuilt for $60.
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Old 01-05-2012, 07:21 PM   #7
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It is very easy the plate is just a brave plate 13mm bolts remove it and the take out the 2 alt bolts pry the alt off it will be wedged pretty good disconnect terminal and plug and do everything backwards to put back on

FYI. I spent 6$ on eBay and got 6 bearings alt only uses 2 and changed them out my self in garage kinda tricky to do but nice and quiet now my wife has an 03 and we mud it so periodically the bearings go bad
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Old 01-05-2012, 09:00 PM   #8
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From the '03 service manual. Hope it helps.



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Old 01-05-2012, 09:09 PM   #9
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Old 01-05-2012, 10:11 PM   #10
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This is IMO good DIY stuff that a owner can and should do themselves. The instructions are excellent and I'll add a couple of steps I've done to make life easier. 1. take a bunch of pictures using your cell or whatever so you know how everything goes together. 2. I use a big a$$ adjustable wrench to unload the tensioner to remove the belt. I adjust the jaws to fit the tensioner arm and just pull it to remove the load and slip the belt off. The alternator bolts #1 & #3 screw into threaded steel bosses that fit tightly in the mounting arms of the alternator. When tightened they pinch the bracket making a mechanically tight fit. Shoot some WD40 on the bosses the day or so before you plan to remove the bolts. Back the bolts #1 & #3 off about one turn or a little more and using a hammer (don't mess up the thread on #3) smack the bolt head a couple of times to drive the threaded bosses lose. Now there is clearance to simply lift the alternator off it's mounting bracket. Good luck...
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