The engine turns over but won't fire – one of the most frustrating and worrying symptoms. It can be caused by a failed fuel pump, a faulty crankshaft sensor, an immobiliser issue, or a flooded engine. This guide covers every possible cause, ranked by likelihood, what a 2025 UK fix costs, and the honest decision framework for your vehicle.
If your Land Rover cranks but won't start, the engine is turning over but not receiving the fuel, spark, or compression it needs to fire. The most common causes are a failed fuel pump (especially on 306DT and Ingenium diesels), a faulty crankshaft or camshaft position sensor, a dead battery that can't supply enough voltage, or an immobiliser issue. Repair costs range from £100–£200 for a battery, £200–£400 for a sensor, £500–£1,200 for a fuel pump, and up to £2,000+ for more complex electrical diagnostics.
If your Land Rover won't start but the engine turns over, listen for the fuel pump priming and check the battery voltage – a simple jump-start could be all you need.
A cranking but non-starting engine is unmistakable. Here's what owners typically experience.
The starter motor spins the engine, but it doesn't catch or run. You hear a rhythmic cranking sound, but no combustion. Catastrophic
A rapid clicking sound when you turn the key, without the engine turning over. This indicates a flat battery or poor electrical connection. Immediate
If you smell strong fuel, the engine may be flooded. If there's no smell at all, the fuel pump may not be delivering fuel. Catastrophic
What else to look for: A non-starting engine is often accompanied by other symptoms – a check engine light, a dead battery, or a security light flashing on the dashboard. If you see any of these, engine management light or limp mode, the issue is likely electrical or sensor-related.
Based on our proprietary enquiry data and specialist interviews, here are the most common reasons for a Land Rover cranking but not starting, ranked from most to least likely.
| Cause | Likelihood | Affected Engines | Typical Cost (Indie) | Severity |
|---|---|---|---|---|
| Fuel pump failure (low or no pressure) | High | 306DT, 276DT, 204DTD, Ingenium | £500–£1,200 [EM-QUOTE] | Catastrophic |
| Flat or failing battery | High | All engines | £100–£200 [EM-QUOTE] | Immediate |
| Crankshaft / camshaft position sensor failure | Medium | All engines | £200–£400 [EM-QUOTE] | Catastrophic |
| Immobiliser / key fob issue | Medium | All models | £100–£500 [EM-QUOTE] | Monitor |
| Fuel filter blocked / water contamination | Low | Diesel engines | £150–£300 [EM-QUOTE] | Immediate |
| Injector failure (flooding or no fuel) | Low | 204DTD, 306DT, 276DT | £300–£800 [EM-QUOTE] | Catastrophic |
This ranking is based on our 2026 engine failure index and hundreds of specialist interviews. The most common cause of a cranking no-start on a Land Rover is a fuel supply issue.
You can do a few simple, safe checks to gather information before you take the car to a specialist. Do not attempt any work that requires you to raise the vehicle or remove engine covers – we are not a garage, and these are observational checks only.
Turn on the headlights. If they're dim or the interior lights are weak, the battery is flat. Try jump-starting the vehicle – if it starts, the battery or alternator is the problem.
Turn the key to the 'on' position (without cranking). Listen for a whirring sound from the rear of the vehicle – that's the fuel pump priming. If you don't hear it, the pump or relay may have failed.
Look for a flashing security light on the dashboard. If it's flashing rapidly or staying on, the immobiliser may be preventing the engine from starting. Try using the spare key.
Don't rely on the fuel gauge – it can be inaccurate. If the gauge shows low, add fuel. If it shows half-full but still won't start, the gauge or sender may be faulty.
If you have a diagnostic tool, plug it in. Codes like P0335 (crankshaft position sensor) or P0087 (fuel rail pressure) can point to the exact cause.
These are observational checks only. If your Land Rover won't start, avoid repeated cranking – you could damage the starter motor or flood the engine. For a more structured approach, try our Diagnostic Wizard.
A non-starting engine is always urgent – but some causes are simple fixes, others are major. Here's how to tell.
These are signs of a major fuel or electrical failure. Stop cranking and call for recovery.
Probably a battery or key fob issue. Get a diagnostic soon.
If you're unsure, get it diagnosed. The cost of a diagnostic is minor compared to a full fuel system rebuild. See our repair vs replace framework for guidance on the 60% threshold.
A good Land Rover specialist will follow a systematic diagnostic sequence to pinpoint why the engine won't start. Here's what they'll do.
Using a Land Rover‑compatible tool, they'll read fault codes. Common codes: P0335 (crankshaft sensor), P0340 (camshaft sensor), P0087 (fuel rail pressure), and P0562 (low battery voltage).
They'll check the fuel rail pressure. If it's below specification, the fuel pump or fuel pressure regulator is likely faulty.
They'll test the battery voltage and the alternator output. A battery that drops below 10.5V while cranking won't start the engine.
They'll check the crankshaft and camshaft position sensors for correct operation. Without a signal from these, the ECU won't fire the injectors or ignition coils.
They'll check the key fob battery, the immobiliser antenna, and the security module to ensure the immobiliser isn't preventing the start.
They'll test the injectors for proper operation and check for spark at the spark plugs to rule out a complete ignition failure.
A thorough diagnosis is essential to avoid unnecessary repairs. For more on diagnostic tools, see our Diagnostic Wizard.
The cost to fix a cranking no-start varies dramatically, from a few hundred pounds for a battery to several thousand for a fuel system rebuild. Here's a breakdown by the most common causes.
| Cause | Diagnostic Cost | Parts Cost (Indie) | Labour (Hours) | Total Est. (Indie) |
|---|---|---|---|---|
| Battery replacement | £80–£150 [EM-QUOTE] | £80–£150 [EM-QUOTE] | 0.5–1 hr | £100–£200 [EM-QUOTE] |
| Crankshaft / camshaft sensor replacement | £80–£150 [EM-QUOTE] | £100–£250 [EM-QUOTE] | 1–2 hrs | £200–£400 [EM-QUOTE] |
| Fuel pump replacement (in-tank) | £80–£150 [EM-QUOTE] | £300–£800 [EM-QUOTE] | 3–5 hrs | £500–£1,200 [EM-QUOTE] |
| Fuel filter replacement (diesel) | £80–£150 [EM-QUOTE] | £50–£150 [EM-QUOTE] | 1–2 hrs | £150–£300 [EM-QUOTE] |
| Injector replacement (one or more) | £80–£150 [EM-QUOTE] | £200–£600 [EM-QUOTE] | 2–4 hrs | £300–£800 [EM-QUOTE] |
| ECU / immobiliser reprogramming | £80–£150 [EM-QUOTE] | £200–£500 [EM-QUOTE] | 2–4 hrs | £400–£1,000 [EM-QUOTE] |
All prices are for independent specialists. Main dealer costs are typically 30–50% higher. For full engine replacement costs, see our engine replacement cost guide.
A non-starting engine is a major inconvenience – but the right decision depends on the cause, your vehicle's value, and your ownership horizon. We apply the 60% threshold rule to help you decide.
Verdict: Repair. The cost is well under the 60% threshold. Full engine isn't needed.
Verdict: Repair. Still well under the 60% threshold. Electrical repairs are viable.
⛔ Immediate — get a professional diagnosis before you decide.
A non-starting engine can be a sign of a serious issue. A £100 diagnostic could save you thousands. For more detailed analysis, see our economics guides and failure index.
If you're still uncertain, compare this symptom to the turbocharger failure or DPF blockage guides.
The most common causes are a fuel pump failure (no fuel pressure), a faulty crankshaft or camshaft position sensor, a dead battery, or an immobiliser issue. A blocked fuel filter or failed injectors can also be responsible.
You can check the battery, listen for the fuel pump, and try the spare key. If the battery is flat, a jump-start may work. But if the fuel pump or sensor has failed, you'll need a specialist. Don't keep cranking – it can damage the starter motor.
Turn the key to the 'on' position without cranking. Listen for a whirring sound from the rear of the vehicle for 2-3 seconds. If you don't hear it, the fuel pump or relay has likely failed.
Costs range from £100–£200 for a battery, £200–£400 for a sensor, £500–£1,200 for a fuel pump, and up to £2,000+ for ECU or immobiliser repairs.
Check the battery voltage, listen for the fuel pump, and check the security light. If the battery is flat, try a jump-start. If it still won't start, call a specialist and have it recovered – don't keep cranking.
It depends. Fuel pump and sensor failures may be covered under a manufacturer's warranty if they fail due to a defect. However, battery failure is typically wear and tear and is not covered. Always check your policy.
Worried about a no-start? Get a quote from a vetted specialist in your area.