TH400 leaking from lower coolant line
#1
TH400 leaking from lower coolant line
Another day another leak. Today's leak is on the lower transmission coolant line. It only leaks while the car is running and leaks about a drop every minute. I've heard online it could be an o-ring of sorts? Anyone have any ideas on this? Also is thread sealer a viable option on this? Thanks!
#4
Don't just clean, inspect as well. When I bought my car the previous owner had installed copper lines. It leaked about a drip a minute, like yours. I thought I was smart to tighten the nut an eighth turn. When I started it up again, there was a geiser. Turns out the flare on the copper line was split; tightening made it worse, not better. Hope you have better luck. And if you have copper lines, replace them with steel as the factory intended.
#5
Someone may have made single flares on your lines as opposed to double inverted flares. The double flare is thicker, no sealer needed.
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70Cutlass_408
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July 30th, 2011 02:50 PM