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General Information => Troubleshooting => Topic started by: ilomax on February 16, 2006, 12:47:36 am

Title: Lower Coolant hose almost always cold
Post by: ilomax on February 16, 2006, 12:47:36 am

1982 Rabbit 1.6 N/A

I drove my car for probably 30 minutes (20 of that on the freeway), get home and check the cooling system over because I'm paranoid about it and the lower coolant hose is cold.  Am I going crazy and this normal for a diesel?

I can sit there in my driveway with my temp gun and BAM... t-stat opens at 186 Deg. and the lower hose starts to warm up.  Fan kicks on at it's norm. temp as well.

At idle the car will sit at or just below the middle on the temp guage, driving normal the temp guage will sit right in the middle and full on up hills  it will go just over the middle maybe to the next notch.

I've got good heat from the heater.

I just did the Head gasket (Made sure the gasket was on straight), replaced all the cooling system, put in some nice blue VW coolant (No more green coolant) and took out the old clunky fan and put in a nice 12" push fan.

Am I going crazY?  Any Ideas?  Is it normal?

Thanks,
Ian

Title: Lower Coolant hose almost always cold
Post by: zyewdall on February 16, 2006, 07:01:29 am

Hmmmm.  Whats the ambient temperature when you were driving it?

Title: Lower Coolant hose almost always cold
Post by: ilomax on February 16, 2006, 08:24:00 am

It was pretty chilly outside lastnight, prob around mid to low 30's, but i've noticed this during the day.
Maybe it just takes a long time for my car to heat up.

Title: Lower Coolant hose almost always cold
Post by: bryanbryan89x on February 16, 2006, 08:52:00 am

What is blue vw coolent???

Title: Lower Coolant hose almost always cold
Post by: bhtooefr on February 16, 2006, 08:56:42 am

Ordinary crap
G11, what VW recommends for our cars, can't be mixed with ordinary crap
G12, can't be mixed with G11 or ordinary crap
G12+, can be mixed with G11 or G12, but NOT ordinary crap
Drain it right away! You mixed something!

Title: Lower Coolant hose almost always cold
Post by: ilomax on February 16, 2006, 01:52:57 pm

Bump Up... Anybody?

Title: Lower Coolant hose almost always cold
Post by: wyldman on February 16, 2006, 02:37:51 pm

In cooler weather,and when using the heater,it's normal to see the lower hose stay cold.Diesels don't produce a lot of heat unless worked hard,and the heater is enough to keep it cool.

Title: Lower Coolant hose almost always cold
Post by: ilomax on February 16, 2006, 04:57:50 pm

Nice so I have that answered.  When I'm goin full on up a hill or say 70mph down the road what is a good temp on the guage.  Mine hits about one notch past middle.  Is that good? Normal?
Thanks again all,
Ian

Title: Lower Coolant hose almost always cold
Post by: wyldman on February 16, 2006, 08:21:24 pm

Most will run right around half,going slightly above under load.

Title: Lower Coolant hose almost always cold
Post by: ilomax on February 16, 2006, 08:26:19 pm

Thanks for the information.

Title: Lower Coolant hose almost always cold
Post by: zyewdall on February 17, 2006, 08:05:40 am

Mine seems to run right about 195F to 210F usually.  I'm measuring head temperature, not coolant temp, so it might not be the same though.

Title: Lower Coolant hose almost always cold
Post by: ilomax on February 17, 2006, 08:25:11 am

I just don't know, maybe my car just likes to stay cool.