98 Monte carlo Z34 Alternator 3.8L

[emba129]

Can someone tell me how difficult an alternator is to change on a 3.8L Z34. It looks straight forward as it in on the top of the engine.

What is the stock amperage and what do you recommend as a good replacement? Same amperage? or more?

thanks
Chris

[richtazz]

the alternator on your car is about as easy as it gets. Disconnect the battery, remove the serpentine belt, disconnect the voltage regulator harness plug on the alternator, the main battery feed cable on the back of the alternator (10mm or 13mm nut), and the two alternator mounting bolts and it's in your hand. Your car most likely had 105 amp alternator from the factory. There was a 140 amp optional unit, but it isn't interchangeable with the 105 amp (it has a different voltage regulator plug and a wider mounting bolt pattern). There are rebuilding shops that may be able to put higher output windings into your original unit if you have a big stereo or other electrical add-ons, but the 105 should be more than enough.

[emba129]

well, its been 2 years since I posted this.. and the alternator finally died. car died while driving, volts light is on, outputting 10.5 volts only. Got another 2 years out of!

any recommendations on a good brand replacement?, preferably a rebuilt

thanks
Chris

[j cAT]

Originally Posted by emba129

well, its been 2 years since I posted this.. and the alternator finally died. car died while driving, volts light is on, outputting 10.5 volts only. Got another 2 years out of!

any recommendations on a good brand replacement?, preferably a rebuilt

thanks
Chris

with this vehicles age just get a scrap yard unit..make sure you recharge the battery before starting the engine......

2 years ago you should have purchased a new lifetime warrantee alternator..never buy a rebuilt alternator too expensive ...and like your failure you get about 2 years only...

the reason is the heat damages the windings...this reduces the life of the alternator...too many hot/cold cycles...