Quick answer
Car Rattling Noise on Startup: the most common causes are timing chain stretch — slack chain rattles on startup before oil pressure builds, exhaust heat shield loose or corroded — metal-on-metal rattle, turbocharger compressor wheel contact with housing on cold start. Metre Per Second (KPHB, Hyderabad) diagnoses the exact fault and repairs it same-day — typical work runs ₹2,000 – ₹4,000, with free pickup and drop across Hyderabad, OEM-grade parts and a 1-year warranty. Call +91 8555824915.
What causes Car Rattling Noise on Startup?
These are the faults we most often find behind this symptom on cars driven in Hyderabad's heat and stop-go traffic:
- Timing chain stretch — slack chain rattles on startup before oil pressure builds
- Exhaust heat shield loose or corroded — metal-on-metal rattle
- Turbocharger compressor wheel contact with housing on cold start
- Low oil pressure on startup — engine bearings rattle briefly
- Loose plastic engine cover or undertray vibrating at specific RPM
Repairs & indicative pricing (INR)
| Repair | Indicative price |
|---|---|
| Timing chain rattle diagnosis | ₹2,000 – ₹4,000 |
| Timing chain replacement | ₹15,000 – ₹40,000 |
| Heat shield tightening/replacement | ₹500 – ₹3,000 |
| Exhaust system inspection | ₹1,000 – ₹3,000 |
| Oil change for correct startup pressure | ₹2,500 – ₹5,000 |
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
My car rattles for 3 seconds on startup then goes quiet — is the timing chain failing?
Yes — this is the classic symptom of timing chain stretch. The chain is slack, and on cold start before oil pressure builds, it rattles against the chain guide. After oil pressure rises (2–3 seconds), it quiets. This will get progressively worse over time. Timing chain replacement at Metre Per Second costs ₹15,000–₹40,000 depending on engine type — far less expensive than engine damage from a jumped chain.
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.