Subaru Legacy BN/BS (2015-2019) Service Manual: Time lag test inspection
NOTE: When the select lever is shifted while the engine is idling, there will be a certain time elapse or lag before shock is felt. This symptom helps to check the condition of forward clutch and reverse brake. • Perform the test at normal operation CVTF temperature of 60 — 80°C (140 — 176°F). • Be sure to allow one minute or more interval between tests. • Make three measurements and take the average value. 1. Apply the electronic parking brake. 2. Start the engine. Check the idle speed. (A/C OFF) 3. Shift the select lever from “N” to “D” range. Using a stop watch, measure the time elapsed from shifting the lever until the shock is felt. Time lag standard: 1.2 seconds or less If “N” > “D” time lag is longer than specified: • Secondary pressure (line pressure) is too low. • Forward clutch worn • Piston malfunction • Control valve body malfunction • Learning incomplete 4. In the same manner, measure the time lag when shifting from “N” range to “R” range. Time lag standard: 1.5 seconds or less If “N” > “R” time lag is longer than specified: • Secondary pressure (line pressure) is too low. • Reverse brake worn • Piston malfunction • Control valve body malfunction • Learning incomplete |
Stall test inspection
CAUTION:Make sure no other person is around the vehicle during stall test measurement.NOTE:Stall test is extremely important in diagnosing the condition of CVT and engine. The test is necessary to mea ...
Transfer clutch pressure test inspection
1. Lift up the vehicle.2. Remove the test plug.3. Set the ST1, ST2, ST3 and ST4 to the transmission.CAUTION:Be careful when setting tools so that the hoses do not touch the exhaust pipes.NOTE:• ...
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Basic diagnostic procedure procedure
STEPCHECKYESNO1.PERFORM CUSTOMER INTERVIEW.Using the Check List for Interview, ask the customer the condition of how trouble occurs. Check List for Interview > CHECKDid you interview the customer- Basic Diagnostic Procedure > PROCEDUREInterview the customer. Check List for Interview > CHECK2.CHECK ...
