Alternator in Connecticut

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.

Shoreline salt air on top of the road salt, working the same parts from the other side.

The climate, in a number

Seasonal snowfall runs from 30 to 35 inches along the coast up to 50 inches in the Northwest Hills. 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

The DMV states it plainly: a personal car or truck does not generally require a safety inspection here. Nothing will flag a failing alternator for you here: the warning light comes on once the regulator has already given up, and by then the battery has been taking the punishment for weeks.

Emissions testing, on a two-year cycle

Emissions testing applies on a biennial cycle to most vehicles, with exemptions depending on age and fuel type. On anything from 1996 onward the test reads the OBD-II system rather than sampling the tailpipe.

The two ways to fail are a lit check engine light, which is automatic whatever the car is doing, and readiness monitors that have not completed — which is what clearing a code produces. If a code has been cleared, drive the car for several days of mixed use, including cold starts and a period at steady speed, before going for the test.

What else Connecticut does to a car

Heavy road salt on a short state where everybody commutes, so the miles are salted miles.

The Merritt Parkway's curves keep the suspension working even where the road is flat.

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 Connecticut, including Bridgeport, New Haven, Stamford and Hartford.