atf - fluid servicecf.linnbenton.edu/eit/auto/krolicp/upload/atf-service.pdf · 2015. 5. 20. ·...
TRANSCRIPT
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ATF - FLUID SERVICE
What happens to ATF if the transmission is under-filled?
Aerated FluidOverheated, oxidized varnished fluid
Slipping bands & ClutchesDelayed engagement
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ATF - FLUID SERVICE
What if Too Much fluid is in transmission
Same as an under-filled tranny
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Check ATF Fluid Level
1) Operating temperature2) Move gear selector through all gear ranges3) Insure vehicle is level4) Read the dipstick (for park or neutral)5) Avoid overfilling
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ATF Temperature is critical to fluid level2005 Dodge ATF procedure is to use a scan tool to find precise temperature to correctly interpret dipstick level.
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Check ATF Fluid Level with No Dipstick
Find and follow specific proceduresMay ask you to monitor exact ATF temperature
with a scan toolWill ALWAYS ask for level vehicle
– even when car is up in the airUsually ask for running engineMay specify Park or NeutralMay require a special dipstickMay ask for fluid to be at or just below a fill plug
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Following is from Toyota training on checking transaxle fluid level
Use the Scan Tool to monitor exact ATF temperature when checking
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Use the Scan Tool to monitor exact ATF temperature when checking
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Use the Scan Tool to monitor exact ATF temperature when checking
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To check Non-Dipstic fluid level you must look up specific procedures!
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ATF FLUID SERVICE
Analyze ATF Color and OdorMilky Pink color = water in ATF
check ATF cooler in radiator
Varnish on Dipstick withBurned or Strong Odor
recommend fluid & filter change
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ATF – Fluid and Filter service
Bring Tranny to Operating temperature Drain and remove oil pan
(It is easy to spill HOT ATF all over)DO NOT use shop rags to clean inside tranny
lint can trap/block shift valves & passagesMake Sure the old oil filter O-Ring is removed!Use clean ATF to lubricate any O-rings or seals
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ATF – Fluid and Filter service
Clean and straighten oil pan stamped steel oil pan can “dimple”
from being over-tightenedAvoid using sealer on oil pan unless specifiedDo not over-torque anythingRefill with proper type of ATF and
DO NOT OVERFILLRoad test, recheck for leaks and proper level