PS Magazine - TB 43-PS-697
PS, The Preventative Maintenance Monthly
ISSUE 697
DECEMBER 2010
14
PS 697
DEC 10
Your
vehicle’s
cooling
system
should be able to reach 160-180°F in
all temperatures. If it doesn’t, get a
mechanic to check the thermostat. It
may need replacing.
A vehicle system that always runs at
more than 200°F also needs attention. A
broken thermostat, a clogged radiator,
a bad radiator cap or flthy coolant may
be the culprit. The engine’s air Fow
may even be blocked.
To speed up heating in freezing
weather, you can partially cover
the air intake grilles with tarp
when starting the vehicle. But
remember to remove the cover
after the engine reaches operating
temperature.
Look at the radiator cap. It
should be the one your TM
calls for. Just any cap won’t do.
The pressure rating of the cap is
vital. Too low a rating lowers the
boiling point of your coolant. Too
high a rating builds up pressure
that’ll pop radiator seams or blow
out hoses.
Hoses must withstand heat,
pressure and vibration. They’re
rubber, so they rot, harden and
crack
with
age.
That’s
why
you need both
eyes and hands
to detect bad hoses. Bad hoses
are puffy, hard, mushy, or wet.
Report them.
Give Them
Proper Care
Engine Cooling Systems…
Give Them
Proper
Care
even when it’s
cold outside,
drivers,
your engine’s
cooling
system needs
proper care.
what
happened
to you?
somebody forgot to
take care of my engine
cooling system, so I’m
stuck here…
…now
go save
yourself!
old man winter
is on the way!
this is
right
where I
should
be!
Make sure cap pressure rating is correct
Puffy?
Hard (cracks
are clues)?
Mushy?
Wet (or even
damp)?
697.14-15.indd
1-2
11/1/10
5:40 PM
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