Could air trapped in the cooling system be a hidden cause of overheating in Changan Kalam in Pakistan?

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Could air trapped in the cooling system be a hidden cause of overheating in Changan Kalam in Pakistan?

Improper coolant refilling o r leakage may lead to air bubbles, blocking flow. Are mechanics bleeding the system correctly during servicing?

Zarnish asked on 25 Jun 2025 13:01:54 pm

1 Answer

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Car Mechanic Expert - on 25 Jun 2025 13:09:37 pm

Yes — air pockets block coolant circulation and cause engine hot spots:

Happens due to improper refilling after draining coolant.

Some mechanics don’t use proper bleeding techniques, leading to:

Gurgling sounds

Inconsistent temperature gauge readings

➡️ Always ask for a bleed o r air purge after a coolant change.