Chevrolet Silverado HD Wartungshandbuch Seite 89

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Black plate (10,1)
Chevrolet/GMC Duramax Diesel Supplement (GMNA Localizing-U.S./Canada-
7132827) - 2015 - CRC - 10/21/14
10-10 Vehicle Care
Wait at least 30 minutes before
checking the transmission fluid level
if the vehicle has been driven:
.
When outside temperatures are
above 32°C (90°F).
.
At high speed for quite a while.
.
In heavy traffic especially in
hot weather.
.
While pulling a trailer.
Checking the Fluid Level
Prepare the vehicle as follows:
.
Park the vehicle on a level
place. Keep the engine running.
.
With the parking brake applied,
place the shift lever in P (Park).
.
With a foot on the brake pedal,
run the engine for at least
one minute and shift to D
(Drive). Then shift to N (Neutral)
and then R (Reverse) to fill the
hydraulic system. Then, put the
shift lever in P (Park).
.
Allow the engine to run at idle
(500 800 rpm). Slowly release
the brake pedal.
Then, without shutting off the
engine, follow these steps:
Cold Check Procedure
The purpose of the cold check is to
determine if the transmission has
enough fluid to be operated safely
until a hot check can be made. The
fluid level rises as fluid temperature
increases. DO NOT fill above the
COLD band if the transmission fluid
is below normal operating
temperatures.
1. Pull out the dipstick and wipe it
with a clean rag or paper towel.
The transmission dipstick is
located near the center of the
engine compartment. See
Engine Compartment Overview
on page 10-3 for location.
2. Push it back in all the way, wait
three seconds, and then pull it
back out again.
3. Check the fluid level reading.
Repeat the check procedure to
verify the reading.
4. If the fluid level is within the
COLD band, the transmission
may be operated until the fluid is
hot enough to perform a hot
check. If the fluid level is not
within the COLD band, add or
drain fluid as necessary to bring
the level into the middle of the
COLD band.
5. Perform a hot check at the first
opportunity after the normal
operating temperature of 71°C
(160°F) to 93°C (200°F) is
reached.
6. If the fluid level is in the
acceptable range, push the
dipstick back in all the way.
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