Question about Chevrolet Blazer

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I have a 1997 4x4 blazer 4.3L, and I would like to have an exclusive oil transmission cooling system instead the actual beside-inside the water cooler radiator. So, I want to know wich of the following options I have to choose from: a) the heavy duty radiator or the medium-low duty to cool the transmission oil, as well as how to fix it. All the above is to increase the oil working life in such a way I could change oil not so quickly (4-6 months).

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  • FUBAR Mar 15, 2011

    Keep in mind that if you drive in cold climates that cooling off too much can restrict the flow.
    Very cold fluid gets very thick and will slow down the flow rate.
    In the meantime, the hot fluid builds up in the transmission.
    I have seen it damage transmissions.

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Well.. one solution would be to buy a dedicated oil cooler available at most auto parts stores. You would have to cap off the original fittings on radiator, and install the new cooler, typically in front of the radiator. Also you could install a remote oil filter kit anywhere there is space in the engine compartment. Also, I have to wonder, why are you changing transmission so often? It should last years not months. Not that there is anything wrong with changing it though. Keeping the transmission fluid cool does help extend its life however.

Posted on Mar 15, 2011

Transmission Fluid gets changes every 30,000 miles
on all vehicles

You can by pass the radiator cooler and put a trans
cooler in front of the condenser

Lot of work making the brakets and making it nice

The approx 7"x11" stacked plate cooler is what you
want,not the cheap tube and aluminum fin junk

Use Power Steering Cooler Hose,not fuel line

Posted on Mar 15, 2011

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