Mariner Mercury 105/140 JET, Руководство по обслуживанию, Страница: 357 / 797

3E-12 - FUEL SYSTEMS 90-824052R3 JUNE 2002
Problem: Oil Level in Engine Oil Reservoir Tank is Low but NOT Low in Remote Oil Tank
Possible Cause Corrective Action
Fill cap is leaking air on the remote tank. Verify o-rings or gaskets are in place and caps are
tight.
Quick disconnect on remote oil tank is not fully con-
nected. Reconnect.
Remote oil hose (BLUE stripe) is blocked. Check length of hose for a kink.
Remote pulse hose (second hose) is blocked or
punctured. Check length of hose for kink or damage.
Remote pulse hose check valve is faulty (valve is
located at the engine end of the hose. Replace check valve.
A restricted oil outlet filter in the remote tank Remove filter and clean.
Leak at the upper end of remote oil tank pick-up
tube. Check tube for cracks or leaks.
Oil and Pulse hoses reversed. Check hose connections.
Low crankcase pressure. Check pressure from pulse hose check valve (2 psi
minimum.
Problem: Warning Horn does NOT sound when Ignition Key is turned to “ON” Position
Possible Cause Corrective Action
Horn malfunction or open (TAN/BLUE) wire between
horn and engine. Use a jumper wire to ground TAN lead (at engine
terminal block) to to engine ground. Warning horn
should sound. If not, check TAN wire between horn
and engine for open circuit and check horn.
Warning Module. Verify all warning module leads are connected to
harness leads. If leads are connected, replace warn-
ing module.
Using incorrect side mount remote control or igni-
tion/choke assembly. Refer to required remote control/ignition key assem-
bly on page 3E-8.
Problem: Warning Horn stays ON when Ignition Key is turned to “ON” Position
Possible Cause Corrective Action
Engine overheat sensor. If horn sounds a continuous signal, the engine over-
heat sensor may be faulty. Disconnect overheat sen-
sor and turn ignition key to “ON” position. If horn still
sounds a continuous signal, the warning module is
faulty. Replace module and re-test. If horn does not
sound, then engine overheat sensor is faulty. Re-
place and re-test.
No battery voltage to warning horn (+) terminal. Check PURPLE wire from key switch to horn for
open and check key switch for open.
Open PURPLE wire going to warning module Check for battery voltage on PURPLE wire at warn-
ing module with key in “ON” position.
Faulty warning module. Check connections – replace module
TAN/BLUE wire between warning horn and module
shorted to ground. With key switch in “OFF” position and TAN/BLUE
wire disconnected from terminal block, check be-
tween end of disconnected wire and engine ground.
There should be no continuity.