Lincoln Nautilus: General Information / Engine Cooling System Health and Safety Precautions. Description and Operation
WARNING:
Always allow the engine to cool before opening the cooling
system. Do not unscrew the coolant pressure relief cap when the engine
is operating or the cooling system is hot. The cooling system is under
pressure; steam and hot liquid can come out forcefully when the cap is
loosened slightly. Failure to follow these instructions may result in
serious personal injury.
This
document provides critical diagnostic knowledge required for successful
repair outcomes. It identifies technical competencies expected by users
of this manual...
WARNING:
Before working on or disconnecting any of the fuel tubes or fuel
system components, relieve the fuel system pressure to prevent
accidental spraying of fuel...
Other information:
Bring the engine to normal operating temperature. Connect
the Vacuum/Pressure Tester to the intake manifold. Run the engine at the
specified idle speed.
The vacuum gauge should read between 51-74 kPa (15-22 in-Hg)
depending upon the engine condition and the altitude at which the test
is conducted...
DTC Charts
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
DTC Chart: Powertrain Control Module (PCM)
PCM
DTC Chart
DTC
Description
Action
P0504
Brake Switch A / B Correlation
..