Don't work when it is cold

One possible reason for this could be a faulty engine coolant temperature (ECT) sensor. The ECT sensor tells the engine control module (ECM) the temperature of the engine coolant, which is used to adjust the air/fuel mixture for starting. If the ECT sensor is faulty, it may be sending incorrect temperature readings to the ECM, causing the engine to not start in cold weather.

Another possibility could be a weak fuel pump check valve. When the fuel pump check valve fails, it can cause the fuel pressure to drop when the engine is turned off, which can cause hard starting in cold weather .

It's also possible that the battery is weak and not providing enough power to start the engine in cold weather. Cold temperatures can reduce the battery's cranking power, which can make it difficult to start the engine.

I would recommend taking your vehicle to a certified mechanic to diagnose the issue.

The battery power level might be too low, not enough cold cranking amps. How old is the battery? Does it require a charge?

Since batteries lose almost half their cranking power at freezing, and since diesels require much higher fuel temps to start than gasoline engines, many recommend using a block heater whenever the temperature is under 35-40 degrees if starting becomes a problem.

What Make and Model # is it. Really impossible for FIXYA Folks to help with out that information.

Hello Jennifer;

My name is Peter. I am a retired field service refrigeration technician.

No. Your problem is not defrost.

The normal temperature setting for a freezer is -2 to +2 degrees F. or -18.8 to -16.7 degrees C. The fresh food section should be set at 35-40 Degrees F. or 1.6 to 4.4 degrees C.

Reset your temperature controls to the recommended settings.
Up plug your unit for 10 minute to power down. Plug your refrigerator in.

Since you can buy new one for $5 maybe it is time to replace it.

Many residential refrigerator / freezers are designed to work at temperature considerably above above freezing. Most modern refrigerator / freezer have a single electric thermostat - located in the fresh food compartment. This lone thermostat will control the compressor to keep the fridge (fresh food) section at the desired temperature (usually between 34 - 38 degrees F). The freezer will get colder regardless of how cold it is already whenever the fridge thermostat turns the compressor on.

Now that you see how the thermostat works, let's look at what happens when the fridge is placed in an unheated space - like a garage. In winter time, the temperature can drop considerably below 38 degrees. If the outdoor temperature remains cold enough, for long enough - it will affect the thermostat in the fridge. The temperature inside the fridge could drop below 38 degrees, preventing the thermostat from telling the compressor to turn on. Meanwhile, the temperature in the freezer compartment slowly rises from the normal -10 to 0 F degrees. It will continue to rise until it is the same temperature as the fresh food compartment or until the thermostat in the fresh food compartment tells the compressor to turn on again. This means the freezer contents will thaw.

If the temperature in the garage is even in the 40 to 50 degree range, the loss of cold in the fridge may not happen often enough to keep the compressor coming on often enough to keep some freezer items frozen solid - such as ice cream. Remember, water freezes at 32 degrees F, other products may require lower temperatures to remain frozen, and could thaw at 28 or other temperature.

Good luck!

Well, it's battery operated, and batteries don't do so well in -40 degree temperatures. So, yeah, even with the batteries on the inside, a lot of cold is transferred. The cold doesn't do much for the internal mechanical movement of the lock, either.

Manufacturer recommends "Suzuki Performance 4 Motor Oil" Any SF or SG rated oil under the API service classification will suffice. 10W-40 is the recommended viscosity.

If you can not get 10W-40, the following are acceptable:

14 to 104 degrees F 20W-50
0 to 104 degrees F 15W-40 or 15W-50
-4 to 104 degrees F 10W-40 or 10W-50
-4 to 86 degrees F 10W-30

Temperatures indicate ambient air temperatures operated in.

the normal temperature for a refrigerator is 35-40 degrees F, so 40 at full cold setting is not correct.

If this is a side-by-side or top-freezer, make sure that the air vents between freezer and fridge are not blocked by food items or ice.

Make sure defroster operation is working normally as ice will block airflow.

Also, there is a circulating fan in most models that moves cold air from freezer to fridge. make sure that's working.