rlhewlett

My 1995 Lexus LS400 started leaking coolant from underneath. Looks like it’s leaking from somewhere on my transmission or around it. Any idea of what may be going on or will this be and expensive fix

bradland

A small coolant leak will often evaporate as it drips over hot engine parts. The closest coolant path to the trans is the heater valve / heater core are at the firewall. Look at the hoses between the engine and firewall and you'll probably find the source of the problem.

Banshee365

The rear coolant bridge would drip on the trans as well.

rlhewlett

Thanks bradland

inwill look into that ASAP. That actually makes since from where the leak is

YODAONE

Check water control valve..located on engine side firewall center.
Wrap paper towel around valve to determine if leaking (coolant will leave red stain)