4 reasons why a reliable engine can stall in the cold

A typical situation: after a frosty night, the engine started up without problems, but something went wrong on the road. The motor began to run unevenly or even stalled, putting the driver in a very difficult position. Why this happens, and what you should pay attention to when setting off on the road, the AvtoVzglyad portal tells.

Although cars are becoming more reliable and modern, quite serious breakdowns still happen to them. This is especially unpleasant to experience on the track, when they felt that strange things were happening to the car. Here are the main malfunctions that can lie in wait for the driver on the road.

FROZEN GENERATOR

After night frosts, the generator brushes may freeze due to condensation formed on them. In this case, after starting the motor, a squeal will be heard and an unpleasant odor will appear. If the driver does not pay attention to this, then big problems await him.

It happens that at first everything goes well, but after a while the engine suddenly stalls. The fact is that the "dead" generator does not produce the necessary current to replenish the energy reserve, so the ignition system stops working.

Recall that you can warm up the generator using a heat gun, the heat from which is directed under the engine compartment.

PROBLEM SENSORS

Low temperatures adversely affect the operation of the crankshaft position sensors, mass air flow and idle speed control. Because of this, the engine control unit fixes errors and puts the power unit into emergency mode. The situation is aggravated if the car has problems in the electrics, and the sensors themselves are old. Then the motor just stops working, and the car gets on the road.

To avoid such surprises, before the cold weather, diagnose the electronic systems of the machine, inspect the wiring and replace the old sensors.

SURPRISE FROM THE PUMP

A broken drive belt due to a jammed water pump can happen at any time, but in winter it is doubly unpleasant. The reason may be the banal negligence of the driver, who has not changed the coolant for years. Or maybe it's the quality of the water pump itself. There are cases when, on a number of domestic cars, the pumps jammed after 40 km of run. So before the season, inspect this assembly for drips and replace antifreeze. So you greatly reduce the likelihood of breakage.

FROZEN SOLAR

Perhaps this is the most common reason for stopping if the owner of a car with a diesel engine saves on fuel quality.

It is not difficult to feel the process of freezing fuel. First, the engine stops pulling, starts to "stupid" and the engine stalls. Most often, the cause of problems with fuel supply is "body" fuel with impurities of summer diesel fuel. It waxes, releases solid fractions, which settle on the walls of the fuel pipes and in the filter cells, preventing the flow of fuel.

To avoid such excesses, you need to refuel only at proven gas stations and use anti-gels.