Hot Check Procedure
The fluid must be hot to ensure an accurate check. The
fluid level rises as temperature increases.
1. Operate the transmission in DRIVE (D) range until
the normal operating temperature of 160°F (71°C)
to 200°F (93°C) is reached.
2. Pull out the dipstick and wipe it with a clean rag or
paper towel.
3. Push it back in all the way, wait three seconds and
then pull it back out again. Repeat the check
procedure to verify the reading.
4. Safe operating level is within the HOT RUN band
on the dipstick. The width of the HOT RUN band
represents approximately 1.06 quart (1.0 liter)
of fluid at normal operating temperature.
5. If the fluid level is not within the HOT RUN band,
add or drain fluid as necessary to bring the fluid
level to within the HOT RUN band.
6. If the fluid level is in the acceptable range, push the
dipstick back in all the way.
Consistency of Readings
Always check the fluid level at least twice using the
procedures described previously. Consistency
(repeatable readings) is important to maintaining proper
fluid level. If inconsistent readings persist, check the
transmission breather to be sure it is clean and
unclogged. If readings are still inconsistent, contact
your dealer.
How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission fluid to use. See “Recommended
Fluids and Lubricants” in the Index.
Add fluid only after checking the transmission fluid while
it is hot. (A cold check is used only as a reference.)
If the fluid level is low, add only enough of the proper
fluid to bring the level up to the HOT area for a hot
check. It doesn’t take much fluid, generally less
than one pint (0.5 L). Don’t overfill.
Notice: We recommend you use only fluid labeled
DEXRON
®
-III, because fluid with that label is
made especially for your automatic transmission.
Damage caused by fluid other than DEXRON
®
-III is
not covered by your new vehicle warranty.
•
After adding fluid, recheck the fluid level as
described under “How to Check.”
•
When the correct fluid level is obtained, push the
dipstick back in all the way.
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Summary of Contents for 2003 DURAMAX
Page 58: ...NOTES 5 40...
Page 82: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 24...
Page 83: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 25...
Page 84: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 26...
