Quick answer
Car Stalling at Traffic Lights: the most common causes are carbon-clogged throttle body disrupting idle air control, idle air control, vacuum leak creating massive air/fuel imbalance at closed throttle. Metre Per Second (KPHB, Hyderabad) diagnoses the exact fault and repairs it same-day — typical work runs ₹1,500 – ₹3,000, with free pickup and drop across Hyderabad, OEM-grade parts and a 1-year warranty. Call +91 8555824915.
What causes Car Stalling at Traffic Lights?
These are the faults we most often find behind this symptom on cars driven in Hyderabad's heat and stop-go traffic:
- Carbon-clogged throttle body disrupting idle air control
- Idle air control (IAC) valve stuck or failed
- Vacuum leak creating massive air/fuel imbalance at closed throttle
- Faulty crankshaft position sensor losing signal at low RPM
- EGR valve stuck open flooding intake with exhaust at idle
Repairs & indicative pricing (INR)
| Repair | Indicative price |
|---|---|
| Throttle body cleaning | ₹1,500 – ₹3,000 |
| IAC valve service | ₹1,500 – ₹4,500 |
| Vacuum leak test | ₹1,000 – ₹2,500 |
| Crankshaft sensor replacement | ₹2,000 – ₹5,000 |
| Idle speed calibration | ₹500 – ₹1,500 |
Final price depends on diagnosis. We share a written estimate before any work — no surprises. Free pickup & drop across Hyderabad, OEM-grade parts and a 1-year warranty.
Frequently asked questions
Car always stalls in Hyderabad signal traffic — embarrassing and dangerous. Fix?
Stalling at traffic lights in Hyderabad is very common — throttle body carbon buildup from city stop-go driving is the #1 cause. When the throttle plate closes at a red light, carbon deposits reduce the idle air passage and the engine can't sustain idle. Throttle body cleaning (₹1,500–₹3,000) at Metre Per Second resolves this in 1–2 hours. Walk-in anytime or WhatsApp for same-day service.
Related car problems we fix in Hyderabad
Why Hyderabad drivers choose Metre Per Second
- Factory-grade diagnostics — we read the real fault, not just a generic code.
- Free pickup & drop across all of Hyderabad — KPHB, Kukatpally, Miyapur, Hitech City, Gachibowli, Banjara Hills, Secunderabad and more.
- 1-year unconditional warranty on parts and labour.
- Transparent, written estimates — typically 30–50% below authorised dealers.