Returning a car to life after a winter break or a long absence of the owner always carries risks. Even the serviceable. motor It can be affected if you just sit down and try to spin a starter without prior preparation. Mechanical units, deprived of lubrication for months, and electrochemical processes in a discharged battery require careful approach.
In this article, we will examine not only the theory, but also practical steps that will help to avoid expensive repairs. You will learn why you can not immediately give the gas, how to revive the battery and what to do if the fuel in the tank turned into viscous slurry. The right sequence of actions is the guarantee that your Ford Focus, Toyota Camry Or the domestic "classic" will start with a half-turn.
Ignoring the simple rules of conservation and reopening can lead to you going to the service by tow truck instead of the trip. Especially critical condition motor-oil and the battery charge level. Let’s analyze each stage in detail to minimize the wear of units at the most critical moment.
⚠️ Attention: If the car has stood for more than three years, an attempt to start without a complete replacement of technical fluids and revision of the cylinder piston group can lead to a jamming of the engine.
Visual inspection and body preparation
The first stage does not require keys in the ignition lock. Before you drive, you need to walk around the car. During the downtime in the body could settle rodents, which are happy to chew on wiring and insulation. Carefully inspect the space under the hood for sockets, jointed hoses or damaged high-voltage wires.
Check the tires. Prolonged pressure on one point of contact leads to the formation of “flat” areas on the tread, which can cause a beat when moving. If the car was on flat wheels, the risk of damage to the cord increases many times. Check the pressure with a pressure gauge – even a small leak in a month could reduce it to a critical level.
- 🔍 Check the bottom and arches for corrosion that may have developed due to moisture.
- 🐀 Look for traces of rodents in the hood space and cabin.
- 💧 Make sure there are no fresh puddles of technical fluids under the car.
Clean the car of dirt and reagents if it was standing in an unheated garage or on the street. Aggressive chemicals from the roads can quickly destroy the paintwork and damage the rubber suspension elements. Only after an external inspection can you go to work with internal systems.
Diagnosis and Resuscitation of the Battery
The most common problem after downtime is completely discharged battery. Lead-acid batteries are subject to self-discharge, and in a month or two, the charge can fall below the critical level. If you left the car with the alarm connected, the process went faster. Trying to start the engine with a “dead” battery will only finish the plates.
Remove the terminals and measure the voltage with a multimeter. If the device shows less than 10.5 volts, immediate charging with a stationary device is required. Fast charging with a “booster” will not help here – it will only create the appearance of voltage, but will not restore the capacity. Charge the battery need a current of 10% of the capacity, for 10-12 hours.
⚠️ Attention: Never try to light a fully frozen battery. An electrolyte in the form of ice can cause a short circuit and explosion of the battery body.
Check the terminals for oxidation. White or greenish coating increases resistance and interferes with normal start-up. Clean the contacts with small sandpaper or a special brush. If the battery is serviceable, check the electrolyte level and, if necessary, add distilled water to the label.
Before installing a charged battery, wipe its body with a wet cloth with a soda solution to neutralize acid vapors that can cause self-discharge.
Checking of technical fluids and filters
Liquids tend to age even without engine operation. Motor oil It drains into the crankcase, leaving the rubbing parts dry, and gasoline loses its properties and is oxidized. Before the first start, be sure to check the oil level with a probe. If the level is above normal and the liquid smells of gasoline, then the fuel got into the crankcase - you can not start the engine!
Evaluate the state of the antifreeze. If it has turned into rusty slurry or flakes are visible in it, the cooling system must be washed. Frozen rosine could break the pipes or radiator, so visual monitoring of the integrity of the system is mandatory. The braking fluid is hygroscopic and collects water, which reduces the boiling point and causes corrosion of calipers.
| Fluid | Replacement period after idleness | Signs of a problem | Risks. |
|---|---|---|---|
| Motor oil | Just after the 1st launch. | The smell of gasoline, the emulsion. | Pivot of liners |
| Fuel. | If it stood for > 6 months. | Clouding, sludge | Clogged nozzles |
| Brakes | 1-2 months from now. | Dark color, water. | Brake failure |
| Antifreeze | As of today | Rust, flakes. | Overheating, corrosion |
The fuel filter could also be clogged with the decay products of gasoline. If the car stood for more than a year, it is better to drain the gasoline from the tank completely. Modern fuel with ethanol is layered and loses its octane number after 3-4 months of storage. Using old gasoline can cause detonation and damage to the catalyst.
☑️ Pre-launch liquid check
Work with fuel system and cylinders
Before you turn the starter, you need to create pressure in the fuel ramp. In modern injection systems, this happens automatically when the ignition is turned on, but after a long downtime, the gas pump may not immediately raise pressure. Turn on the ignition several times (without starting the motor) to hear the pump hum and let the system fill up.
For carburetor engines or direct injection engines, the situation is different. Gasoline could have evaporated from the combustion chambers. You can pour several milliliters of fuel (or special liquid). "Fast start") directly into the intake manifold by removing the air filter pipe. However, use this method with caution.
An important point for diesel engines: if there are air traffic jams in the system, starting will be impossible. It is necessary to pump the system through a pear or manually pumping pump, if the design provides such an opportunity. Air in the diesel fuel system is the main enemy of the launch.
What to do if oil is in the cylinders?
If after a long downtime you twisted out the candles and saw that they are filled with oil (which happens when the rings are in place), do not try to start the engine immediately. Scroll the motor with the starter with the candles twisted out to knock out the excess liquid. Make sure to replace the oil and filters immediately after the first run.
First engine start and warming up
This is the most critical moment. Make sure all tools are removed, the hood is open (for control), and you are ready to turn off the engine at any second. Turn on the ignition, wait 3-5 seconds until the oil pressure bulb goes out (if it is in the pre-launch circuit), and spin the starter for a short time.
If the engine is caught, don't let the gas! Let him work at idle speed. First seconds. oil-pump It should disperse thick, cold oil through all channels. Any load at this moment is equal to work on dry. Keep an eye on the oil pressure lamp – if it does not go out after 5-7 seconds of operation, the engine must be immediately silenced.
After launch, listen carefully to the sounds. Knocking, grinding, or a strong vibration are signs of serious problems. Normally, the engine can work unevenly for the first minutes until the candles warm up and the idling speeds stabilize. The heating time in winter should be at least 10-15 minutes before the start of movement.
⚠️ Attention: If after starting from the exhaust pipe pours thick white smoke with a sweet smell, then the gasket of the GBC is pierced and antifreeze enters the cylinders. Exploitation is prohibited.
The main purpose of the first run is not to go, but to make sure that the engine is running smoothly and the oil pressure is normal.
Running-in and primary diagnostics of running
After a successful warm-up, do not rush to develop high speed. Rubber suspension elements, gums and cuffs during downtime could “blown out” or crack. The first kilometers of the path should be in a gentle mode. Avoid sharp accelerations, braking and driving through pits.
Pay attention to the brakes. On the discs and drums could form a layer of rust. The first few pedal presses may be accompanied by grinding and vibration – this is normal, the oxide layer is erased. If the brakes are “grabbed” or the car is taken aside, the calipers will need repair.
- 🚗 Check the steering – there should be no backlashes or jamming.
- 🛑 Test the brakes on the safe area for sideways.
- 👂 Listen to the suspension for knocks that may have appeared due to the dried-up Silentblocks.
During the first week of operation, it is recommended to check the levels of all liquids once again. Perhaps there will be hidden leaks that were invisible during a static inspection. Also, be sure to check the tension of the attachment belts that may have stretched.
Can I start the car with a pusher after a long downtime?
It's not recommended. The manual transmission and clutch could also sour. A sharp load on the crankshaft without prior lubrication can lead to the twisting of the liners or breakage of the gears of the timing, especially if the belt / chain has also lost elasticity.
How long should the engine run at the first start?
The optimal idling time for the first start after winter is 15-20 minutes. This will allow warming not only the cylinder block, but also the gearbox (due to heat exchange), as well as evaporate condensate from the exhaust system.
Do I need to change the oil if the car has been standing for a year?
Yes, the oil and filters must be replaced immediately after the engine is running for 10-15 minutes. During the downtime in the oil could begin chemical reactions of oxidation, and also in the crankcase could get gasoline or condensate, which turns the lubricant into an aggressive environment.
What if the starter is spinning, but the car does not start?
Check for spark and pressure in the fuel ramp. Often after idleness, the gas pump net is clogged or candles die. Try to unscrew candles: if they are dry - no fuel, if wet - no spark or overflow. Also check the crankshaft sensor that may have oxidized.