So at work today, while checking in a truck, i noticed this:



so i follow it across the radiator...



to this:


which turns out to be one of the heater core hoses.

not sure what the point is, but now you know!

 

Cool find DCRB!

 

thanks!

say... what's up with the f150's (the newer ones) having a nose so big it seems like there's a civic attached to the front of it? i drove one out our rental f150's to get some grub, and the nose is HUGE!!!! plust the seats made me feel like i was sitting in a small coupe/sedan car... yet it's a "truck"? psh. lol

 

Hmm, that hoes looks like an air purge for the heater core.

 

my rad. has that second nipple, but it is not drilled through....

 

Makes sense......a lot of sense when you think how difficult it is to fully purge air from the cooling system. Why is this not used on the Aerostar and other Ford applications?

 

probly because the pics i took were off of a comercial vehicle? kind of like how even @ 200000 miles, and with around 5000 miles between each oil change they don't burn any oil, or leak (well almost all of them don't.... it happens now and then, like recently one got taken off the roads due to a rod knock, but you guys get the picture).

i don't see why it wouldn't be easy to install and "aftermarket" one tho?

 

You think the new ones are huge? If you get the chance, get behind the wheel of a 70s/80s F-350+, now there is a long nose. Now if you want a real nose bleed, see if you can find and sit behind the wheel of a late 70s T-bird. There is enough room for you to land a F-18 Fighter on that hood!

 

Thats neat I was wondering bout that. Thanks

 

My truck has that same hose.... only it runs up to the throttle body. Looks like somebody modified that one or something?

 

Sure! The old coolant to the intake connection! It's for detonation prevention I assume? A little squirt on the fire?

In a similar vein, I recently read of early 2.8 Cologne V6 Rangers developing a slight miss. Diagnosis shows it having low compression on one cylinder. After disassembly it's found one piston doesn't come all the way up to deck height. Reason is bent connecting rod caused by hydro-lock. Water was getting into engines thru air intake in heavy rainy weather or creek fording. Later models had redesigned air intakes. Strange but true..

 

DCRB Wrote "Radiator Overflow nipples: i found the purpose for the second one!"

In case you have twins?? I thought those front end appendages went out back in the 1950s! So they hide them now? Modesty in mechanics? Heck the girls are showing them now!!

 

hahahahahaha some show em, some hide em. both have their advantages and disadvantages

 

Some of the cars that have EGR applied at the throttle body will also use a coolant passage in the same area to help cool that area. Otherwise the engine would be sucking in air that get heated from the exhaust gases being recirculated. Hot intake air is bad for the engine, except for when the engine is cold. However, the cars I've seen with this have it fed from a small split off from the heater hoses.

 

That's new to me, but not surprised. Modern automotive engineering. Why I got out of it years ago. When it was more about making the EGR work right than making the MG run right & be fun to drive, I began losing interest. Cars are still neat, but no longer simple.