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1999 V70 Alternator Replacement - will one from a 1998 work?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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VolvoMonkey
Posts: 60
Joined: 31 August 2011
Year and Model: V70 XC 1999
Location: Mountain View, CA

1999 V70 Alternator Replacement - will one from a 1998 work?

Post by VolvoMonkey »

I have a 1999 V70 XC AWD and need to replace the alternator.

The local pick-n-pulls have a couple of 1998 V70s. I'm not sure where to look to see if I can take an alternator from one of the '98s and put it in my car. I'd appreciate any advice!

Also, is alternator failure a common problem; should I not bother with the junkyard and instead get a new one?

precopster
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Post by precopster »

Unfortunately the '98 won't go in your '99. If yours is clamped between the a/c compressor and the block yours is the later style but the good news is pretty much anything to 2007 should fit.

If the voltage dropped and the bearings are fine I would just replace the regulator. Plenty of them on eBay. I did a video tutorial a while ago on refurbishing '99 V70 regulator.

Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

VolvoMonkey
Posts: 60
Joined: 31 August 2011
Year and Model: V70 XC 1999
Location: Mountain View, CA

Post by VolvoMonkey »

Awesome. Thanks for the info.

The bearings are starting to make a bunch of noise so unfortunately I need to replace the whole thing.

VolvoMonkey
Posts: 60
Joined: 31 August 2011
Year and Model: V70 XC 1999
Location: Mountain View, CA

Post by VolvoMonkey »

How often do alternators fail? Am I better off getting a new one?

JRL
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Post by JRL »

Anywhere from 100K to never
I have a 2000 Alternator for sale, (this will fit).

If interested, please email me
jrl1194(at)aol(dot)com
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

Pauloil
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Location: davenport, IA

Post by Pauloil »

good time to replace the starter cable and also B+ cable from batt. to fuse box.
99 V70XC 158K

95 850glt 188K

precopster
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Post by precopster »

Accessory belt tensioner idler could be the noise source. I would pull the alternator, spin it by hand and see what is actually noisy. The tensioner idler is an easy fix and cheap.
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

VolvoMonkey
Posts: 60
Joined: 31 August 2011
Year and Model: V70 XC 1999
Location: Mountain View, CA

Post by VolvoMonkey »

Awesome. Thanks for the information. I'll take a look at the idler as soon as I get the chance.

Pauloll: what is the reason for replacing the starter cable and B+ cable?

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erikv11
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Post by erikv11 »

Give the cables a look. They tend to fall apart at the ends over time, especially the ends at the battery and at the fuse box. You can also check to make sure they don't get warm to the touch. But I wouldn't replace them preventively, just do it if it is needed. Because while it is a good thing to keep an eye on, there is no advantage to doing it now.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

scot850
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Post by scot850 »

Volvo V70R engine B+ cable fuse box end (3).JPG
Volvo V70R engine B+ cable fuse box end (4).JPG
Above are the pictures from my 00 V70. This is the end in the fuse box. They last 7-9 years a Volvo mechanic told me. Be careful wht you buy, as even the ones I got from Volvo were rubbish compared to the originals. They look like the generic stuff you buy on line. They came with no heatshrink on the ends and the end of the B+ cable where it joins the +ve cable at the battery in channel sectioned, but the new battery to starter motor cable is flat, so you have to flatten it to fit. The starter to alternator again was a peice of rubbish, and it needed a step made inthe end at the starter motor to fit over the battery to starter cable. Look carefully at the old parts you remove to make sure the new ones have the same profiles. I fitted my own heatshrink and covered the ends with dielectric grease.

I raised the issue with Volvo Canada back in early February through the dealer and am still waiting to hear about why they are selling crap for lots of money (approx $140 CDN each).

Surprisingly, still no answer!

Hope this helps.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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