Chevrolet 2007 Avalanche Spezifikationen PDF herunterladen (Seite 379)

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101

If you get the ENGINE OVERHEATED STOP ENGINE or

the ENGINE OVERHEATED IDLE ENGINE message

with no sign of steam, try this for a minute or so:

1. If the vehicle has an air conditioner and it is on,

turn it off.

2. Turn on the heater to the highest temperature and

at the highest fan speed and open the windows as

necessary.

3. In heavy traffic, let the engine idle in NEUTRAL (N)

while stopped. If it is safe to do so, pull off the road,

shift to PARK (P) or NEUTRAL (N) and let the

engine idle.

If you no longer have the overheat warning, you can

drive. Just to be safe, drive slower for about 10 minutes.

If the warning does not come back on, you can drive

normally.

If the warning continues, pull over, stop, and park your

vehicle immediately.

If there is still no sign of steam and your vehicle has an

engine-driven cooling fan, push down the accelerator

until the engine speed is about twice as fast as normal

idle speed for at least ﬁve minutes while parked.

If there is still no sign of steam and your vehicle has an

electric cooling fan, idle the engine for ﬁve minutes

while parked.

If you still have the warning, turn off the engine and get

everyone out of the vehicle until it cools down. Also,

see “Overheated Engine Protection Operating Mode”

later in this section.

You might decide not to lift the hood but to get service

help right away.

Overheated Engine Protection

Operating Mode

If an overheated engine condition exists and the

ENGINE POWER IS REDUCED message is displayed,

an overheat protection mode which alternates ﬁring

groups of cylinders helps prevent engine damage. In this

mode, you will notice a loss in power and engine

performance. This operating mode allows your vehicle

to be driven to a safe place in an emergency. Driving

extended miles (km) and/or towing a trailer in the

overheat protection mode should be avoided.

Notice: After driving in the overheated engine

protection operating mode, to avoid engine damage,

allow the engine to cool before attempting any

repair. The engine oil will be severely degraded.

Repair the cause of coolant loss, change the oil and

reset the oil life system. See Engine Oil on

page 5-15.

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