Alternator Repair in Garden City, NY

What We Do

Charging System Diagnosis & Alternator Replacement

Broadway Servicenter offers professional Alternator Repair for all makes and models in Garden City, NY.

Every repair is backed by our 6-month / 6,000-mile warranty. Honest estimates, no runaround.

Alternator repair and replacement at Broadway Servicenter in Garden City, NY

What's Included

Alternator Repair Services

🔍

Charging System Test

We measure alternator output voltage and load capacity at idle and at RPM to confirm whether the alternator is producing adequate charge for your vehicle.

⚡

Battery Test

Alternator and battery problems often appear at the same time. We test both so you know exactly which component is causing the problem.

🔧

Alternator Replacement

Alternator replacement on all makes and models. We install quality replacement alternators and test the charging system after installation to confirm everything is working correctly.

🔧

Drive Belt Inspection

The alternator is driven by a serpentine or V-belt. A worn or cracked belt can cause charging problems without the alternator itself being faulty. We inspect belt condition during every charging system service.

Alternator Problems: What You Need to Know

The charging system is one of those things that fails quietly until it does not. A battery that needed a jump last month and died again this month is a classic pattern - the battery was not the problem, or was only part of the problem. An alternator that is putting out 12.5 volts instead of 14 volts looks fine on a quick voltage check but will slowly drain the battery, especially in stop-and-go traffic on the LIE or sitting in a parking lot at Roosevelt Field with the AC running.

We see a lot of situations where someone replaced a battery at a parts store, the car was fine for two weeks, and then the same problem came back. That is almost always a charging system issue that was not diagnosed properly the first time. When you bring a charging problem to Broadway Servicenter, we test the full system - alternator output, battery condition, drive belt, and connections - so we find the real cause and fix it once.

If your car is showing any charging system symptoms in Garden City, Nassau County, or the surrounding area, call us at (516) 681-0122 or bring it by 640 Old Country Road. We can usually diagnose and replace an alternator the same day.

FAQ

Alternator Repair FAQ

What are the signs of a failing alternator?

The most common signs are a battery warning light on the dash, headlights that dim when idling but brighten when you rev the engine, a whining or grinding noise from under the hood, electrical accessories behaving erratically, or a battery that keeps dying even after being replaced. If your car dies after a jump start and will not stay running, the alternator is usually the first thing to check.

How do I know if it is my battery or my alternator?

A battery problem usually shows up as a hard start - the engine cranks slowly or not at all. An alternator problem often shows up while the car is running - the battery warning light comes on, accessories start acting up, or the car dies while driving. The quickest way to know for sure is a charging system test, which we perform for free. We test both the battery and the alternator output so you get a clear answer.

How long does alternator replacement take?

Most alternator replacements take 1.5 to 3 hours depending on the vehicle. Some makes and models, particularly European vehicles and certain SUVs, have more complex alternator locations that add time. We will tell you the expected time before we start and get you back on the road as quickly as possible.

Do you replace alternators on all makes and models?

Yes. Broadway Servicenter replaces alternators on domestic vehicles, Japanese makes, European vehicles, and hybrids. All alternator work is backed by our 6-month / 6,000-mile warranty.

Alternator Repair