Question about 1984 Pontiac Fiero

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Hi i just bought a 1984 pontiac fiero. drove it about 1/4 of a mile and the alternator belt snapped. i noticed to pullys at bottom. does belt go on inner or outer pully. any info would be greatly appreciated. ps. bought hanes book but doesn't say

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I own an 86 v6 fiero, not an 84 4-cyl like yours probably is.
If you have the old belt, and it broke in one place, just wrap it around the alternator or whatever pulley you were talking about and see where it reaches in a snug position (as it was approximately installed before it snapped)

If there are two pulleys on the same shaft, just pick whichever one is square to the other connecting pulleys. Or just check to see if one shows signs of use or is rusted/dusty (like it hasn't been used recently).

How many pulleys are there total? Water pump, alternator, drive, a/c...4 total? One serpentine belt for all? Give me some more info
and I'll let you know what to do if you haven't figured it out by now

Posted on May 28, 2010

Look at the 2.8 Chevy S-10 info. Same engine

Posted on May 10, 2010

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Posted on Jan 02, 2017

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1 Answer

How do you replace alternator on 1986 fiero gt


Remove negative battery cable. Jack up rear of car. Remove passenger side rear wheel. Loosen A/C compressor tension bolt. Remove A/C belt. Disconnect 2 wire plug and single wire bolted to back of alternator. Loosen alternator tension bolt. Remove alternator pivot bolt from up top of bracket. Wiggle out through bottom.

Reverse for install.

Good luck,

Rebel Faggioli

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In the 84 thru 88 Fiero's they had the 2.5L In-Line 4-Cylinder or the 2.8L V6.
I have included both below

For the 2.5L In-Line 4-Cylinder:
Firing Order:
1 - 3 - 4 - 2
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.........(back)............
|...1....2....3....4...|
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For the 2.8L V6:
Firing Order:
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.......(back).........
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Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

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