Gmc 2003 Sierra User Manual download pdf (Page 112)

Engine Coolant Heater

In vety cold wealher, 0“F

(-ia“C) or cQldar, th9

engine toolanl heater can

help- Voull get easier

starting and better

fuel economy during

engine warrn'up, UsuaHy^

the coolartt healer

should t>e plugged in a

mini mum of four hOurS

prior to starting your

vehicle.

Al temperatures above 3£'^F [O^'Clr use ol the coolant

heatgr is not required.

To Use ttie Engine Coofant Heater

■f. Turn off the engine.

2. Орал Ihe hood and gnirt/rap the electrical cord. The

cord is 1i>caiea on the driver's side of the engine

compertment, near the power steering fluid

reservoir- If you have a diesel engine, refer !o

diesaJ supplement for location,

3. Plug it Info a r^omial, grounded 1 lO-vott AC outlet.

Д CAUTtOrJ:

Plugging the cord Into an ungrounded outlet

Could Cause an electrical shack Also, the

wrong kind of extension cord could overheat

and cause a fire. You could be seriousty

injured. Plug the cord into a properly grounded

three^prong 110-voh AC outtel. if the cord

won't reach, use a heavy-duty three-prong

extension cord rated for at least 1& amps.

4. Before starting the engine, be sure to unplug and

store the cord as jl was before (o keep il away

from moving engine pans. It you don't, it could be

damaged.

How long should you keep the coolant healer plugged

in? The answer depends on Ihe Outside temperature, the

kind of of I you havOn and some other things. Instead

of trying to list everything here, we ask that you contact

your dealer in the area where you'll be parking your

vehicle. The dealer can give you the best advice for that

particular area.

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Gmc 2003 Sierra User Manual Page 112

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