Question about 1999 Pontiac Sunfire

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Remove alternator on 99 sunfire - 1999 Pontiac Sunfire

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Disconnect the negative"-" battery cable from the battery. Remove two mounting screws before disconnecting the wires, this will allow easier access to the wiring. Spray a fair amount of penetrating oil on all the wiring terminals and let them soak for about ten minutes. Remove the wires and make a small diagram in order to remember their placement upon reinstallation. That's it, reverse the removal instructions for installation Thank you, Dana P.S. It may be necessary to remove the sarter from the top end of the engine due to interference from exhaust or steering linkages, but normally they will come out from the bottom. Thank you, Dana

Posted on Oct 04, 2009

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SOURCE: how to change alternator on 99 sunfire

Here's a great video that will show you exactly how to do this. Tony">

Posted on Jan 25, 2011

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The batery light keeps going on in my 99 sunfire . the alternator look like its runing fine . i got a jump last night left the car runing for a while and it did start when i checked it this moring but...

battery/alternator problems can be checked at most automotive stores for free check ur local area looks are usually deceiving also check wiring connections first for loose ,damaged or corrosion

Dec 17, 2010 | 1999 Pontiac Sunfire

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I'm changing the altanator on a 1999 Pontiac Sunfire. How do I release the belt tension?

Loosen the tensioner for the accessory belt for the alternator and remove the belt. Remove the two long bolts that are holding the alternator in the bracket.
(Sometimes you have to remove the tensioner arm completely or just loosen it and it will slide over to relieve tension on belt)
Full article:

Nov 30, 2010 | 1999 Pontiac Sunfire

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2000 sunfire charging system

Alternator is bad or the voltage regulator. Both are easily tested. Remove the Alternator and have it tested at Auto Zone or O'Rielley's.

Jun 18, 2010 | 2001 Pontiac Sunfire

1 Answer

99 Sunfire: Radio not picking up stations out of

the easy way is remove the radio from the dash leave plugged in remove the anttenna wire from the radio stick a small screwdriver in the anttenna socket and see if the recpetion is better you may have to hold the screwdriver with your hand to be a better antenna if so thier is something wrong with your antenna coax or antenna if not doesnt help then the radio is bad internally

Jun 01, 2010 | 1999 Pontiac Sunfire

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I need instuctions on how to put in an alternator?

in general alternators are al lot easier to install than people think.. you should be able to do it in the parking lot outside your local parts store. you could probably get away with a wrench/socket the fits the bolts that hold it onto the motor/bracket. the first thing, use a 3/8" ratchet to put counter the tension on the belt tensioner, so you can remove the serpentine belt from around the alternator pulley. then undo the bolts holding it on and it should come right off.. also, be sure to undo the wire clip beofore removing the alt. the new alternator installs in the reverse of the removal directions. **notes be sure to have your charging system checked first to make sure that it is the problem, keep track of how serpentine belt came off so you can put it back on the same way (it only goes on one way) and you will need to put counter-tension on the belt tensioner to get it on.. in some cars it can be a tight fit and you may have to move/remove misc things out of the way to get it in/out, this is normal.. good luck

Feb 08, 2009 | 1999 Pontiac Sunfire

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Almost sounds like an intermittent problem with alternator not charging ocassionally. Double check all belts are in good shape & tight, as well as have battery tested, along with alternator.

Jan 16, 2009 | 2002 Pontiac Sunfire

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