Replacing your van's thermostat

[K0ZLU]

Well I plan on replacing the power steering pump in the next couple of weeks and that will be the prime time to swap the thermostat. I will be putting an OEM T-Stat in at that time.

From how it was explained to me, the Toyota OEM for our vans are designed to work with horizontal flow, while most others are designed for vertical flow. Having changed thermostats in other vehicles, but not thinking about the flow while doing so, and now thinking back, they were all used vertically. My '89 4x4 was running hot and I know it doesn't have the OEM t-stat because I helped with the motor swap 5 years ago - I did n't own the van back then nor know about using OEM t-stats, just got her in March. I also have the water pump and fan clutch just in case. It got close but I was able to baby her with the idle carrying my at that speed. Didn't go far and had to keep letting her cool down, but I made it to where I got a u-haul car hauler and a buddy met me with his truck.