Starter Motor in Michigan

A cold start is the hardest thing this motor does

Michigan winters put the two halves of a start in opposition. Cold thickens the oil the starter has to turn, so the load goes up; cold also drops what a battery can deliver, so the current available goes down. Demand rises exactly as supply falls, and that is the moment a starter that was merely tired in October stops turning.

A slow crank that gets slower over a week is the warning. A single click is usually the solenoid contacts rather than the motor, and on many designs those are replaceable — worth establishing before buying a whole unit.

Lake-effect winter runs longer than the calendar one.

Road salt reaches the terminals and the bolts

The starter sits low and takes everything the front wheels throw at it. Two things corrode: the heavy battery cable at the solenoid stud, and the mounting bolts into the bell housing.

The first is a resistance that reads as a weak starter. The second is why replacing one here is a longer job than the labour guide says — plan for seized fasteners rather than being surprised by them.

The heaviest road salt in the country. Seized-fastener repair and brake-line corrosion are ordinary jobs here rather than bad luck.

The climate, in a number

Lake-effect snow puts more than 180 inches a year on parts of the Upper Peninsula. A starter draws its heaviest current on the coldest morning of the year, which is the morning it is most likely to be asked twice.

What goes on the roads in winter

The state salts its trunklines and is explicit that temperature governs both when salt goes down and whether it does anything once it is there. The starter sits low enough on most engines to be inside the spray, and it is the solenoid connections rather than the motor that corrode first.

What actually seizes

Knowing the list is most of the preparation.

1. 1Wheel speed sensors in the knuckle. Aluminium knuckle, steel sensor, salt water — the classic galvanic seizure. Plan for drilling one out, and buy the sensor before you start.
2. 2Caliper slide pins. Seized slides wear the inner pad and leave the outer one, or the reverse. This is why "the pads were fine on that side" is a symptom rather than good news.
3. 3Exhaust fasteners. Assume every one of them is single-use.
4. 4Rotor-to-hub interface. Corrosion here welds the rotor on and causes runout when it does not.
5. 5Bleeder screws. They round off, and a rounded bleeder on a caliper you were going to keep turns into a caliper you are replacing.

What we hold, and what it costs

5 options from Bosch, Cardone, Denso, Remy and Valeo, from $199.99 to $249.99. 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 Michigan, including Detroit, Grand Rapids, Ann Arbor and Lansing.