Radiator / Overheating Problem

Ang symptoms pala ng Toyota Avanza nagbabawas ng coolant, kapag medyo barado na ang radiator neto, which need to be overhauled.

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Originally Posted by rodetor

Ang symptoms pala ng Toyota Avanza nagbabawas ng coolant, kapag medyo barado na ang radiator neto, which need to be overhauled.

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i think this is the same for most other cars.

Sira na siguro cap ng radiator or worn out na upper radiator hose.

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Originally Posted by dr. d

i think this is the same for most other cars.

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Not on my experience with our ride. I encounter overheating that is already near red mark but never runs out of coolant in a radiator even in its reservoir tank. I also end overhauling the radiator when parts like thermostat valve and switch was replaced. The overheating problem diminished when the radiator was overhauled.

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Originally Posted by rodetor

Not on my experience with our ride. I encounter overheating that is already near red mark but never runs out of coolant in a radiator even in its reservoir tank. I also end overhauling the radiator when parts like thermostat valve and switch was replaced. The overheating problem diminished when the radiator was overhauled.

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Yung Overhaul na sinasabi mo ay stop leak lang. Expected naman talaga na mag le-leak ang radiator. Karamihan may leak sealer na nakahalo sa coolant yung iba naman zinc or magnessium na sacrificial anode ang gamit.

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Originally Posted by desertst0rm

Yung Overhaul na sinasabi mo ay stop leak lang. Expected naman talaga na mag le-leak ang radiator. Karamihan may leak sealer na nakahalo sa coolant yung iba naman zinc or magnessium na sacrificial anode ang gamit.

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my concern over leak sealer additives... do they only and really stop leaks, or do they cause radiator blockages as well?

How much is the typical range for radiator overall?


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Originally Posted by jdab

How much is the typical range for radiator overall?


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some repairers do not repair plastic-topped radiators. "throw-away" radiators daw.
others replace (daw) the plastic tubs with brass tubs. don't know if this is true, or if the repair lasts.

i remember an overhaul quotation of 1800 bucks, but that was years ago.
surplus? we have no guarantee... that surplus radiator might just turn out to be in worse condition than yours.
surplus radiators have probably been languishing, dry, in the shop, for some time.
the corrosion-preventive properties of radiator coolant, have not been enforced on them for some time.
once installed in your car, they may just "leak like a ligadera".
brand new, to be sure. 5K or so.

errr... what's your car and radiator, po?

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Originally Posted by dr. d

some repairers do not repair plastic-topped radiators. "throw-away" radiators daw.
others replace (daw) the plastic tubs with brass tubs. don't know if this is true, or if the repair lasts.

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Had the plastic tub replaced with metal on my truck. Still ok until now, around 5 years later. Best thing to do would be to use premixed coolant to make sure corrosion doesn't start. I don't know why, but even with our best effort to get the right ratio of coolant concentrate to water, rust starts to appear a few months after.

Kung around 80-100k ang mileage mo at working ang both fan, time to overhaul radiator at palit thermostat na din( bka naka stock half open eh). Plastic radiator O/H 5-600 petot (ikaw ang magkalas) kung mayhairline crack better buy replacement 3,500 last year pag auto.
Check mo lang sir rev engine 2.5k to 3k with out radiator cap pagdahan lumalabas ang tubig mo ah same tayo ng problem Replace head gasket kna din.


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