Choosing the Right Alternator for Your 1987-1991 Pontiac Tempest
Keep your classic Tempest running strong by understanding its charging system and picking the best new alternator.
- Symptoms often start with dim lights, a dashboard warning light, or whining noises.
- The Pontiac Tempest of this era is mechanically identical to the Chevrolet Corsica, so parts and guides are interchangeable.
- Choosing a new aftermarket part from a reputable brand is the most reliable and cost-effective option.
- Verify the pulley type (number of grooves) on your old alternator before ordering a new one.
Signs of a Failing Alternator in a Pontiac Tempest
When the alternator in your 1987-1991 Tempest starts to fail, it will give you several warning signs. Because these cars have simpler electrical systems than modern vehicles, the symptoms are usually very clear. You might notice your headlights and dashboard lights are dimmer than usual, especially when the engine is idling. Conversely, failing voltage regulators can sometimes cause lights to get brighter or flicker.
A common sign is the battery-shaped warning light on your dashboard. This light specifically indicates a problem with the charging system. 🎬 See how to test your alternator at home You might also hear a whining or growling noise from under the hood, which could be the alternator's internal bearings failing. Eventually, a bad alternator will not be able to charge the battery, leading to a dead battery and a car that won't start.
🎬 Watch: 10 common signs your alternator is failingChoosing the Right Aftermarket Alternator
For a vehicle like the 1987-1991 Tempest, finding a brand-new OEM part from GM is highly unlikely. The market primarily consists of new and remanufactured aftermarket parts, which are a practical and affordable choice.
Brand Quality & Tiers
- ACDelco: As GM's official parts brand, ACDelco is the closest you can get to the original equipment. They offer different lines, and for an older vehicle, their Professional (Gold) or Advantage (Silver) series are common. While they are designed to be a direct fit, be aware that quality on remanufactured parts can sometimes be inconsistent, with occasional reports of faulty units out of the box.
- Remy: Remy has a long history and was once part of GM (as Delco-Remy). They are now a major aftermarket supplier. Owner experiences are mixed; some find them to be reliable replacements, while others have reported premature bearing failures.
- MPA (Motorcar Parts of America): MPA is a large North American company that produces brands like Quality-Built. They focus on testing their products to meet or exceed original specifications. They are a solid aftermarket choice, though less known by name than ACDelco or Remy.
Pro Tip: Check Your Pulley
The 1987-1991 Tempest used different engines (2.0L and 2.2L) which may have different accessory belts. Before ordering, check if your car uses a V-belt or a multi-groove serpentine belt. Count the number of grooves on your current alternator's pulley (a common one is a 5-groove pulley) to ensure the new part matches.
New Aftermarket Alternator Cost
| Brand Tier | Estimated Price Range |
|---|---|
| Value Aftermarket (New) | $93.48 - $140.00 |
| Premium Aftermarket (New/Reman) | $140.00 - $223.32 |
Frequently Asked Questions
Is it hard to replace the alternator on a 1987-1991 Tempest?
No, this is a straightforward job for a DIY mechanic with basic tools. The alternator is usually easy to access in the engine bay. The process involves disconnecting the battery, removing the drive belt, unbolting the old alternator, and installing the new one.
🎬 Watch this step-by-step alternator replacement walkthroughShould I buy a new or remanufactured alternator?
For this vehicle, a new aftermarket alternator is often priced similarly to a remanufactured one and avoids potential quality issues sometimes seen with rebuilt parts. However, a quality remanufactured unit from a top brand like ACDelco can also be a good choice and often comes with a warranty.
Are there any recalls for the Pontiac Tempest alternator?
No, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from the NHTSA for the alternator on the 1987-1991 Pontiac Tempest. This is common for a vehicle of this age.
Do I need a special alternator if I have A/C?
Generally, the same alternator model fits Tempests with and without air conditioning. The key is matching the amperage and pulley type. However, always confirm the fitment for your specific vehicle before purchasing.
Helpful Videos
Technical Specifications
OEM Part Numbers: 10463043 10463114 10463175 10463264 10479963
Amperage: 105A, Voltage: 12V, Rotation: Clockwise, Pulley: 5-Groove Serpentine
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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