FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
:
Car repair manuals for everyone.
Home
>>
Mercury
>>
1999
>>
Grand Marquis V8-4.6L VIN W
>>
Repair and Diagnosis
>>
Powertrain Management
>>
Computers and Control Systems
>>
Testing and Inspection
>>
Pinpoint Tests
>>
DL - Cylinder Head Temperature (CHT) Sensor
>>
Test Notes
Test Notes
This Pinpoint Test is intended to diagnose the following:
-
Cylinder Head Temperature
(CHT)
sensor
-
Harness circuits: CHT, VREF, and SIG RTN
-
Powertrain control module
(PCM)