Can a Clogged Radiator o r Rusty Coolant Be Causing My Khyber to Overheat?

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Can a Clogged Radiator o r Rusty Coolant Be Causing My Khyber to Overheat?

I haven’t flushed the radiator in a long time, and the coolant looks brownish. Could a clogged radiator o r old coolant be reducing cooling efficiency and causing the engine to overheat?

Gari Specialist asked on 12 Apr 2025 17:47:31 pm

1 Answer

18 views |

Gari Master - on 12 Apr 2025 17:50:10 pm

Absolutely. Over time, radiators can get clogged with rust, dirt, and mineral deposits, especially if you use tap water instead of proper coolant.

Signs:

Coolant looks brown o r rusty

Radiator cap o r tank has sludge o r gunk

Heater inside car doesn’t work due to poor coolant flow

What to Do:

Perform a radiator flush with radiator cleaner

Replace with a good 50/50 coolant mix ZIC, Caltex, Toyota

If the radiator is badly clogged, consider replacing it

Cost Estimate:

Radiator flush: PKR 1,000–1,500

New radiator: PKR 3,000–5,000