What is this?

Pretaco · 02-13-2008, 06:23 PM

16921 maybe?

Its for the heater hose to bypass the thermostat, otherwise the cooler water from the heater might close the thermostat and cause the engine to overheat when the heater is on. Older 22r engines had that problem until a new thermostat was designed for them.

Ray.

02-13-2008, 06:23 PM	#4
Pretaco 3" Exhaust Join Date: Dec 2007 Location: Glendale, AZ Posts: 126	16921 maybe? Its for the heater hose to bypass the thermostat, otherwise the cooler water from the heater might close the thermostat and cause the engine to overheat when the heater is on. Older 22r engines had that problem until a new thermostat was designed for them. Ray. __________________ '88 Supra Targa 5 speed w/ '90 7M-GTE Currently Running Good For Sale: Light blue body parts, Blue interior parts all from '90 supra targa turbo manual. Also for sale: R154 trans, brake pedal, master cylinder, booster, abs actuator, sensors, abs ecu, driveshaft, 3.90 lsd rear end, radiator, wiring, speedo cable, 8 saw blade wheels, '88 ecu, relays, cruise control actuator (bad cable), empty fuel tank, etc....