Chevrolet 2007 Yukon XL Denali Specifications download pdf (Page 446)

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101

To get the right reading, the ﬂuid should be at

normal operating temperature, which is 180°F to

200°F (82°C to 93°C).

Get the vehicle warmed up by driving about

15 miles (24 km) when outside temperatures are

above 50°F (10°C). If it is colder than 50°F (10°C),

drive the vehicle in THIRD (3) until the engine

temperature gage moves and then remains steady

for 10 minutes.

A cold ﬂuid check can be made after the vehicle

has been sitting for eight hours or more with

the engine off, but this is used only as a reference.

Let the engine run at idle for ﬁve minutes if

outside temperatures are 50°F (10°C) or more. If it

is colder than 50°F (10°C), you may have to idle

the engine longer. Should the ﬂuid level be

low during this cold check, you must check the

ﬂuid hot before adding ﬂuid. Checking the ﬂuid hot

will give you a more accurate reading of the

ﬂuid level.

Checking the Fluid Level

Prepare your vehicle as follows:

1. Park your vehicle on a level place. Keep the

engine running.

2. With the parking brake applied, place the shift

lever in PARK (P).

3. With your foot on the brake pedal, move the

shift lever through each gear range, pausing

for about three seconds in each range.

Then, position the shift lever in PARK (P).

4. Let the engine run at idle for three minutes

or more.

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Chevrolet 2007 Yukon XL Denali Specifications Page 446

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