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5.0 1997 mountaineer Alternator replacement

Forum: General Automotive Discussion

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5.0 1997 mountaineer Alternator replacement

Posted: 7/9/14 12:36pmMessage 1 of 7
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dads2vette
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Ash Fork, AZ - USA
Joined: 4/18/2007
Posts: 1058
Vette(s): 1981 Red Interior White exterior
Seems like I have a bad alternator. When I look into replacing this alternator it looks like I may have to move the power steering unit. Any videos out there I can watch for guidance? Not to whine but my bad back only gives me 20-30 minutes before taking a break so I'd like to get my "oops" moments down to a minimum.

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Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
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Re: 5.0 1997 mountaineer Alternator replacement

Posted: 7/9/14 4:11pmMessage 2 of 7
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stingrayjim jr
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SHELBYVILLE, TN - USA
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Vette(s): 1976 L48 auto

1978 L82 4speed

1994 LT1 6speed
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Looks like the alternator is on the opposite side of the steering pump, should just be a few bolts and wires... you may want to do a little looking online for any other information (youtube or such ;) )


|UPDATED|7/9/2014 4:11:06 PM (AZT)|/UPDATED|

StingrayJim
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Re: 5.0 1997 mountaineer Alternator replacement

Posted: 7/9/14 4:25pmMessage 3 of 7
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dads2vette
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Ash Fork, AZ - USA
Joined: 4/18/2007
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Vette(s): 1981 Red Interior White exterior
You are absolutely correct.  I was a schmutz!  Easy peazy, should be a 20 minute job for most, a day and a half for meBig smile

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Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"


Yeah, I know, Shut up Dave.
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Re: 5.0 1997 mountaineer Alternator replacement

Posted: 7/9/14 5:46pmMessage 4 of 7
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stingrayjim jr
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SHELBYVILLE, TN - USA
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Vette(s): 1976 L48 auto

1978 L82 4speed

1994 LT1 6speed
nawww you aint no schmutz.... i'm sure we all have glanced under the hood and went into hysterics...  then realized it weren't that bad... :)

StingrayJim
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Re: 5.0 1997 mountaineer Alternator replacement

Posted: 7/10/14 5:54pmMessage 5 of 7
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dads2vette
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Ash Fork, AZ - USA
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So I replaced the alt. and that wasn't the problem.  I start the truck up and get a reading of 12.4 volts at the battery.  I'm going to keep the battery on trickle charge overnight and maybe that will bring it up.  I drained the darn thing trying to get home.  New battery at least, so if I fried that I get a new one!
Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"


Yeah, I know, Shut up Dave.
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Re: 5.0 1997 mountaineer Alternator replacement

Posted: 7/10/14 7:45pmMessage 6 of 7
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Adams' Apple
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Duncanville, TX - USA
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IF the alternator is working, you should see at least 13.5-14v with the engine running.....unless that new battery has a dead short in it. Even at that, the alternator would still be trying to charge it. If the battery is bad, it will got hot with the engine running after a while.....
See how the overnite charge goes, and if that gets the batt voltage back up with the engine running.
Might be something else goin on there....Ouch

Joel Adams
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Re: 5.0 1997 mountaineer Alternator replacement

Posted: 7/10/14 8:35pmMessage 7 of 7
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stingrayjim jr
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SHELBYVILLE, TN - USA
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Vette(s): 1976 L48 auto

1978 L82 4speed

1994 LT1 6speed

what joel said.  12.4 is a bit low for battery voltage, but... its not the tell-tale voltage reading of a dead cell within a battery(which is about 10.6 volts after the surface charge is gone)....   I would definitely check to make sure the wires were all fastened back onto the alternator... just in case... otherwise... i'd be taking it back to whomever you purchased it from and get another one. 

I have gotten a bad alt before, it was a reman from advance auto, in-fact it was a neighbor of mine that I asked if I could install it.  We actually went through 2 alternators before getting one that worked..  since then, I've only gotten new manufactured alternators.

StingrayJim
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