4kq temp gauge

[L DC]

Robert, 

Interesting observation/input:

"The Audi gauge is simply more sensitive (and
informative) than your typical temp gauge, which often
have big deadspots engineered in."

So that's really true, huh?

The mechanic to whom I used to take my car and who is
VW certified, once told me the very exact thing about
the VW/Audi temp senders/gauges.

Contrary, once warmed up, my cousin's 93 Honda Accord
and friend's '04 Corolla S' temp gauge both sit either
just a tad below the middle mark or right on the
middle mark. Thing doesn't seen to move even when fans
kicks in, which rarely do really when idiling.

My experience with VW's and Audis is different. Once
fan kicks in, which does it quite often here in sunny
FL, the temp drop is usually registered by a slight
drop on the temp gauge, usually as soon as fan cuts
off. 

As some of you know, I own an '87 VW Quantum Syncro,
which shares the same engine/drive train as the 4KQ.

In hot weather, which is practically most of the time
here in South Fl, after warm up-some 7 to 10
minutes-the temp gauge would sit at or just above the
infamous red little light.

My car has the *87 C thermostat, coupled with a
*85/*93 fan switch. Temp sender sensor *120 C.

Depending on how hot it is and, say, if under the sun,
usually just the low fan speed kicks in.

If under heavy load or traffic on a hot sunny day,
both fan speeds would kick with the high speed on and
off on and off. Low speed might stay on the whole
time. Under such scenario, the needle on the temp
gauge would oscillate between just above the red light
and the 3/4 mark.

I also have seen it climb slightly above the 3/4 mark,
at which point I have gotten out of the car to see if
high speed fan is running like a bat out of hell, and
if not, then turn engine off and manual fan switch on
while I probe to see what's keeping fan from kicking
in high speed or low speed for that matter :)


-Regards,

-Louis

 




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