Identify this part - fuel system?

[P80GLT]

Yes! that is the same sound that I hear. Except it's constantly running, not pausing as in your video. The brake pedal is stiff (with engine off), but since the pump is not pausing, I'm guessing there might be a small leak somewhere. Thanks!

Either a vacuum leak or the switch is faulty. Best sort it out before it burns out the vacuum pump

[weitau]

Yes! that is the same sound that I hear. Except it's constantly running, not pausing as in your video. The brake pedal is stiff (with engine off), but since the pump is not pausing, I'm guessing there might be a small leak somewhere. Thanks!

Either a vacuum leak or the switch is faulty. Best sort it out before it burns out the vacuum pump

Ok thanks! Merry Christmas!

[weitau]

Wow yes my fan is running as soon as the engine starts so looks like coolant temperature sensor. Is the sensor right next to the thermostat in that assembly?

yeh, thats it, the computer isn't getting a signal so it defaults to over heating engine and turns the fan on.
you can unplug the cooling fan until you get a sensor otherwise the engine will cold.

You need a deep 18mm socket, chrome not impact.

drain 1 gal of coolant via the petcock on the bottom of the rad.
re-use the copper washer if it doesn't come with the new part, just flip it over. 20 minute repair.

I got my new thermostat housing today. I also looked at the location, and it's behind the power steering pump. Not easy to get to, and I don't have a set of Torx sockets unfortunately. But your tip to disconnect the radiator fan might tie me over until spring.

[abscate]

Swing out to Long Island one weekend and we can get you rolling again in an afternoon.

Port Jefferson area.

[weitau]

Swing out to Long Island one weekend and we can get you rolling again in an afternoon.

That's mighty kind of you sir, sending you a PM!

[weitau]

Don’t forget to zip tie your new / old part!

I replaced the part, but forgot to do this. Thanks for the reminder!

[weitau]

About a month ago, my friend was driving my V70 in stop and go traffic. The weather has gotten warmer and I'd forgotten about the disconnected radiator fan. Long story short, it overheated and I had it towed to the shop where fortunately they found no issues with the cooling system. But I had them install the thermostat housing

[jonesg]

Swing out to Long Island one weekend and we can get you rolling again in an afternoon.

Port Jefferson area.

all afternoon, bah,
i can do it in 2 hrs, come on over i'm only 600 miles north.

[jonesg]

About a month ago, my friend was driving my V70 in stop and go traffic. The weather has gotten warmer and I'd forgotten about the disconnected radiator fan. Long story short, it overheated and I had it towed to the shop where fortunately they found no issues with the cooling system. But I had them install the thermostat housing

i've blown the top hose off twice and another overheat was the coolant bottle cracked.

[weitau]

i've blown the top hose off twice and another overheat was the coolant bottle cracked.

Sounds serious! hopefully there was no other damage to the engine.
On a old Toyota, I learned the hard way that lifting the hood and trying to cool down the engine is not always a good idea, as the exhaust manifold would cool at a faster rate than the engine block... This was made worse because it was the middle of a Michigan winter.

Where is the radiator cap BTW? Most other cars have one of these.