Alternator in Rhode Island

The connections corrode before the machine does

Damp air works on the exposed side of an alternator: the terminal stud, the plug on the regulator, and the earth strap between engine and body. A resistance in any of those looks exactly like a failing alternator on a meter at the battery, and is a fraction of the price to fix.

Check the charging voltage at the alternator's own output and then at the battery. A meaningful difference between the two is a connection, not a machine.

Narragansett salt air.

The climate, in a number

Providence's normal annual snowfall is 36.6 inches, on top of 47.54 inches of precipitation. Every one of those days is a day the cooling fan, the air conditioning clutch and the blower are all drawing at once, and the alternator is what carries them.

Does this state inspect your car

One inspection every two years covers safety and emissions together, and anything from the 1996 model year on takes an on-board diagnostics check as part of it. A charging warning light is a fault an inspector sees from the driver's seat, before anybody opens the bonnet.

Salt from the water as well as the road

Narragansett Bay and the South County shore put most of the state within reach of salt-laden air, and the winters are salted heavily on top.

That is two corrosion mechanisms on one car. Road salt works from underneath, thrown into cavities and trapped; shore air settles on what is exposed and attacks aluminium, connectors and brake hardware. Very few states apply both to the same vehicle.

What else Rhode Island does to a car

Road salt on a state small enough that every mile is a salted mile.

The shortest journeys in the country: the engine oil dilutes rather than warms and nothing under the car dries out.

What we hold, and what it costs

5 options from Bosch, Cardone, Denso, Remy and Valeo, from $239.99 to $309.99. Prices are firm — where we have no price we publish none.

We are a reseller rather than a manufacturer: we source the part, check it over and sell it, and we confirm it against your year, make, model and engine before it ships rather than asserting a fit on the page. We ship anywhere in Rhode Island, including Providence, Warwick, Cranston and Pawtucket.