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Page Title:
ENGINE OIL PRESSURE GAGE DOES NOT OPERATE OR IS INACCURATE (CONT) |
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 TM 9-2320-366-20-1
e11. ENGINE OIL PRESSURE GAGE DOES NOT OPERATE OR IS INACCURATE (CONT)
KNOWN INFO
TEST OPTIONS
2.
Resistance Test or
VOLTS gage OK.
STE/ICE-R #91
Engine oil level OK.
Is 202-243 ohms resistance
REASON FOR QUESTION
Engine oil pressure indicator
present from connector PX6
This question eliminates
goes out after engine starts.
pin 4 to a known good
possible problems and
ground?
determines where
POSSIBLE PROBLEMS
troubleshooting continues.
Faulty engine oil pressure
transmitter.
Faulty engine OIL PRESS gage.
NO
Faulty engine control cable
assembly.
Faulty WTEC II dashboard cable
assembly.
Go to step 4 of this fault.
Faulty WTEC III dashboard
YES
cable assembly.
KNOWN INFO
TEST OPTIONS
3.
Resistance Test or
VOLTS gage OK.
STE/ICE-R #91
Is 90-130 ohms resistance
Engine oil level OK.
REASON FOR QUESTION
present from connector PX6
Engine oil pressure indicator
pin 4 to a known good
goes out after engine starts.
If 90-130 ohms resistance
ground?
Engine control cable assembly
is not present, engine oil
OK.
pressure transmitter is faulty.
WTEC II dashboard cable
If 90-130 ohms of resistance is
assembly OK.
present, engine OIL PRESS
WTEC III dashboard cable
gage is faulty.
assembly OK.
POSSIBLE PROBLEMS
NO
Faulty engine oil pressure
transmitter.
Faulty engine OIL PRESS gage.
Replace oil pressure transmitter
YES
(para 7-49).
Replace OIL PRESS gage (para 7-14).
Change 2
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