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For 5.0L V8 engine. 1. Disconnect battery. For safety, cover the + & - battery metal connectors with a rag so they don't short out. 2. Place a 1/2" drive ratchet into the belt tensioner and rotate counter-clockwise. Remove belt from alternator. 3. Disconnect wire attached to the back of the alternator it's held on with a nut (you may have to remove rubber boot first). 4. Disconnect power plug going into alternator, it's held on with a clip. 5. Remove the bracket nut (not sure what size) on the back of the alternator. Remove the (2) torx bits (not sure what size) in front of the alternator. Remove alternator. Note: If you don't have Torx bits, try to get Torx bits that attach to a ratchet; this will aid in removal & installation. 6. When installing new alternator, start with Torx bits first, then the bracket nut (don't fully tighten the Torx bits or the bracket nut until they are hand tight, then tighten as normal. Install the wire that connects to back of alternator, then the power plug. Reattach belt. Good Luck!!

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โˆ™ 2006-10-13 20:51:13
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Q: How do you replace the alternator on a 1991 Pontiac Firebird?
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