6.9
3507, 3508, 3509, 3512, 3513, 4007, 4008, 4009, 4012, 4013
Transmission:
5. Transmission overheating
(oil above 120° C (248° F)).
1. Low oil level.
1. Fill transmission to correct level
with Mobilfluid 424
®
ISO
Grade 46. Refer to Section 2.4,
“Fluids, Lubricants and
Capacities.”
2. Clogged radiator.
2. Remove debris from the
radiator.
3. Transmission filled with incorrect
oil, or oil contaminated.
3. Drain transmission and fill to
correct level with Mobilfluid 424
®
ISO Grade 46. Refer to Section
2.4, “Fluids, Lubricants and
Capacities.”
4. Excessive “roading.”
4. Stop and idle the engine.
5. Restriction in oil cooler hoses.
5. Replace cooler hoses.
6. Pump worn or damaged.
6. Repair or replace pump
assembly.
7. Engine thermostat stuck.
7. Replace engine thermostat.
Refer to Section 7.4.2,
“Thermostat Replacement.”
6. Grinding or “clunking” noise
from transmission.
1. Oil level too low.
1. Fill oil to correct level. Refer to
Section 2.4, “Fluids, Lubricants
and Capacities.”
2. Transmission filled with incorrect
oil.
2. Drain transmission and fill to
correct level with Mobilfluid 424
®
ISO Grade 46. Refer to Section
2.4, “Fluids, Lubricants and
Capacities.”
3. Incorrect clutch engagement.
3. Refer to Section 9.12.3,
“Transmission Solenoid Valves.”
4. Internal damage.
4. Repair or replace parts as
needed.
5. Broken diaphragm (flex plate).
5. Replace diaphragm (flex plate).
Refer to Section 6.5.1,
“Transmission Removal.”
6. Loose diaphragm (flex plate)
mounting capscrews.
6. Tighten capscrews.
Problem
Cause
Remedy