Yours Nissan Almera Classic refuses to start, but there is no time to spend a long time searching for the problem? This article will help you quickly determine the cause - from a simple battery discharge to complex fuel system malfunctions. We have collected 12 most common reasonswhy the engine won't start, with detailed diagnostic and troubleshooting instructions.

The car may not respond to the key in different ways: the starter turns, but the engine does not catch; Clicks are heard, but there is no start; or no response at all to turning the key. Each symptom indicates its own group of problems. For example, if when you turn the key all the lights on the dashboard light up, but the starter does not turn - 90% of the fault lies with the contacts or the starter itself. And if the lights are dim or don’t light up at all, the problem is in the battery or power circuit.

Don’t rush to take your car to a tow truck! Most faults can be diagnosed and fixed independently with a minimum set of tools. We will analyze each case in detail - from simple to complex.

1. Discharged or faulty battery

The most obvious and common reason. Almera Classic especially sensitive to low voltage: if the battery is discharged below 11.8 V, electronics may block starting. Signs:

  • 🔋 Dim headlights or dashboard lights
  • 🔊 Relay clicks when trying to start the car
  • 🚗 The starter turns very slowly or does not turn at all

How to check? Take a multimeter and measure the voltage at the terminals with the ignition off. Norm: 12.6–12.8 V. If less 12.2 V - the battery is discharged, if below 11.8 V - deep discharge. Please note leakage current: if the car sits for more than a week without moving, the problem may be a short circuit or a faulty consumer (for example, an alarm).

⚠️ Attention! If the battery is swollen or electrolyte is leaking from it - don't try to charge. This is dangerous: an explosion may occur. This battery must only be recycled.

Solutions:

  • 🔌 Recharge the battery with a charger (current no more than 1/10 from the battery capacity).
  • 🚗 “Light up” from another car (observe the polarity!).
  • 🔧 Replace the battery if it is older than 5 years or does not hold a charge.
📊 How often do you check the battery condition?
  • Once a month
  • Only when problems arise
  • Never
  • Other

2. Problems with the starter

If you hear when you turn the key single click or the starter turns very slowly - it is itself or the solenoid relay is to blame. On Almera Classic The brushes often wear out or the contacts (“nickels”) inside the starter burn out. Diagnostics:

  1. Check if it reaches +12 V to the starter when turning the key (with a multimeter on the control wire).
  2. Listen to the sound: if the starter makes a grinding noise, the Bendix teeth are broken.
  3. Tap the starter housing with the wooden handle of a screwdriver - sometimes this temporarily restores contact.

Typical starter malfunctions Almera Classic:

SymptomReasonSolution
Clicking sound, but the starter does not turnDefective solenoid relayReplacing a relay or starter
The starter turns but does not engageBendix wearReplacing bendix or starter
Grinding noise on startupDamaged flywheel or bendix teethDiagnostics at a service station
⚠️ Attention! If the starter turns, but the engine does not start for longer 10 seconds - stop trying! The starter winding may burn out or the battery may discharge.

Temporary solution: push start the car (only for manual transmission!). But remember: this does not eliminate the problem, it only allows you to get to the service.

3. Malfunctions in the ignition system

If the starter turns vigorously, but the engine does not start, check the ignition system. On Almera Classic with engines QG15DE And QG18DE often fail:

  • 🔥 Spark plugs (especially after 60,000 km)
  • 📶 Ignition coils (cracks in the housing or breakdown)
  • 🔌 High voltage wires (current leakage)

How to diagnose:

  1. Remove the spark plug and check for spark. To do this, put a high-voltage wire on it, place it on the engine (so that there is contact with ground) and turn the starter. The spark should be bright blue. A red or weak spark is a sign of a problem.
  2. Swap the ignition coils. If the problem has moved to another cylinder, the coil is faulty.
  3. Check the resistance of the high-voltage wires with a multimeter. Norm: 3–10 kOhm (depends on the length of the wire).

Typical diagnostic mistakes:

  • ❌ Checking the spark on a twisted spark plug without grounding (you can burn the coil!).
  • ❌ Using non-original candles (for Almera Classic fit NGK BCPR6ES or Denso K16PR-U11).

Check spark on all plugs|

Inspect the coils for cracks and signs of breakdown|

Measure the resistance of high voltage wires|

Check the coil power supply (fuse 15 A in the block under the hood)

-->

4. Problems with the fuel system

If the starter turns, there is a spark, but the engine does not start - the fuel system is to blame. On Almera Classic most often:

  • 🛢️ The fuel filter is clogged (it is recommended to change it every 40,000 km)
  • 🔧 The fuel pump has failed (a characteristic sign is the absence of a buzzing sound when the ignition is turned on)
  • 🔥 The injectors are clogged (especially if the car has been standing for a long time)

How to check:

  1. Listen to whether the fuel pump works when you turn on the ignition (a slight hum should be heard in the cabin in the rear seat area).
  2. Check the fuel rail pressure. Norm for Almera Classic: 2.8–3.2 bar. If there is no pressure, the problem is in the pump or filter.
  3. Remove the fuel hose from the rail and check whether gasoline flows when the starter is cranked.

Temporary solution: If the fuel pump does not pump, check the fuse EF15 (15 A) in the block under the hood and relay R14. Sometimes it helps to knock on the tank in the area of the pump - this can temporarily restore contact.

⚠️ Attention! If a leak is suspected in the fuel system (smell of gasoline in the cabin or under the car) - don't try to start the car. Risk of fire!
How to check fuel rail pressure without a pressure gauge?

If you don’t have a pressure gauge, you can use the “old-fashioned” method:

1. Press the spool valve on the fuel rail (it looks like a nipple on a wheel).

2. If gasoline sprays out under pressure, the pump is working.

3. If gasoline barely drips or does not flow at all, the problem is in the pump or clogged filter.

Important! Do this with the ignition off and follow fire safety precautions.

5. Immobilizer and alarm malfunctions

Nissan Almera Classic equipped with a standard immobilizer Nats, which can block startup if failures occur. Problems are also often caused by abnormal alarms (for example, StarLine or Pandora). Signs:

  • 🔑 The immobilizer light on the dashboard flashes or stays on constantly
  • 🚨 The alarm does not respond to the key fob or goes off spontaneously
  • 🔧 The car stalls a few seconds after starting

What to do:

  1. Try starting the car second key (sometimes the chip in the first key fails).
  2. Turn off the alarm (find the fuse or remove the main unit).
  3. Reset immobilizer errors by disconnecting the battery at 10–15 minutes.

If the problem is in the immobilizer, you may need to flashing the key chip or replacing the antenna around the ignition switch. For abnormal alarms, resetting the settings to factory settings often helps.

💡

If the car starts and immediately stalls, try pressing the button Valet on the alarm unit (usually hidden under the dashboard). Sometimes this will unblock the launch.

6. Engine sensor malfunctions

Modern engines Almera Classic are controlled electronically, and failure of even one sensor can block startup. Most often the culprits are:

  • 📊 Crankshaft sensor (CPSV) - without it, the ECU does not know when to supply a spark
  • 🌡️ Coolant temperature sensor (DTOZH) - affects the composition of the mixture
  • 💨 Mass air flow sensor (MAF) - if there is a malfunction, the engine “floods”

How to diagnose:

  1. Connect a diagnostic scanner (for example, ELM327) and check the error codes. Typical codes for Almera Classic:
    • P0335 — DPKV malfunction
    • P0115 - problem with DTOZH
    • P0100 - DMRV error
  • Check the resistance of the sensors with a multimeter (for example, for DPKV the norm is: 550–750 Ohm).
  • Inspect the connectors for oxidation or damage.

    • Temporary solution: if you suspect DPCV, you can try clean it (rinse carefully with alcohol). But usually a faulty sensor must be replaced.

    7. Problems with electronics and wiring

    Over time, contacts oxidize, wires fray, and relays fail. On Almera Classic pay special attention to:

    • 🔌 ECU main relay (located in the interior fuse box)
    • 🔗 Massive wires on the engine (especially around the battery and starter)
    • 📶 Sensor connectors (often oxidize due to moisture)

    How to check:

    1. Check to see if the fuse is blown ECU-IG (10 A) in the block under the hood.
    2. Check the voltage at the ECU with the ignition on (there should be 12 V on contact +B).
    3. Inspect the ground wires: they should be clean and tightly screwed on.

    Typical problem: oxidation of contacts in the ECU connector. This leads to the fact that the car may start every once in a while or stall while driving. The solution is to clean the contacts with a special liquid (for example, Contact Cleaner).

    💡

    If the car does not start after washing the engine, water most likely got into the sensor connectors or the ECU. Dry them with a hairdryer (cold air!) before diagnosing.

    8. Engine mechanical problems

    If all systems are in order, but the engine still does not start, mechanical failure is possible. On Almera Classic with mileage >150,000 km most often:

    • 🔧 The timing belt is torn (the engine will not turn or knocks)
    • 🛢️ The camshaft or crankshaft is stuck (the starter cannot crank the engine)
    • 💥 The cylinder head gasket is broken (white smoke from the exhaust, emulsion in oil)

    How to diagnose:

    1. Try cranking the engine by hand (using the crankshaft pulley bolt). If it doesn't rotate, it jams.
    2. Remove the timing cover and check the integrity of the belt.
    3. Inspect the oil on the dipstick: if it looks like “mayonnaise,” the cylinder head gasket is broken.

    If you suspect a broken timing belt - don't try to start the car! On engines QG15DE/QG18DE This leads to bent valves and expensive repairs.

    ⚠️ Attention! If you hear a metallic knock when you try to start, stop immediately! This is a sign engine wedge or connecting rod breakage. Further attempts will only make the damage worse.

    FAQ: Frequently asked questions about launching Nissan Almera Classic

    The car does not start after refueling. What's the matter?

    Most likely, you filled in with low-quality gasoline. Drain the fuel tank and flush the fuel system. If the engine still does not start, check the spark plugs (they could have been “flooded” with bad gasoline).

    The starter turns, but the engine does not catch. What to do?

    Check:

    1. Spark on the candles.
    2. Fuel rail pressure.
    3. Condition of the air filter (if it is clogged, the engine “suffocates”).

    If everything is in order, it may be faulty crankshaft position sensor.

    The car starts and immediately stalls. What is the reason?

    Typical reasons:

    • Defective idle air control (RHH).
    • clogged catcollector (exhaust gases do not escape).
    • Crashes immobilizer (try the second key).
    How to start Almera Classic with a dead battery without “lighting up”?

    Methods:

    1. “Push” (for manual transmission only): engage 2nd gear, accelerate the car to 10–15 km/h and quickly release the clutch.
    2. Use starter charger (For example, Carku).
    3. Remove the battery and charge it separately (if you have time).
    Is it possible to drive if the car does not start the first time?

    Short term - possible, but not recommended. This is a sign of a progressive problem (for example, a dying fuel pump or problems with sensors). The longer you wait, the more expensive the repair will be.