2003 FORD MUSTANG pinpoint test b

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FORD MUSTANG 2003  Workshop Manual PINPOINT TEST C: THE ENGINE CRANKS SLOWLY 
PINPOINT TEST D: UNUSUAL STARTER NOISE  �z
Measure the resistance between the starter motor relay pin 86, 
circuit 1205 (BK) and ground. 
�z Is the resistanc

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FORD MUSTANG 2003  Workshop Manual 3. If the concern remains after the inspection, connect the scan tool to the data link connector 
(DLC) located beneath the instrument panel and select the vehicle to be tested from the scan 
tool men

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FORD MUSTANG 2003  Workshop Manual Pinpoint Tests 
NOTE: 
Reinstall or install new evaporative emission hose clamps removed or damaged during testing 
procedures. 
PINPOINT TEST A: DTC P0442 SMALL LEAK IN EVAP SYSTEM  tube assembly. 
�

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FORD MUSTANG 2003  Workshop Manual manifold. 
�z Complete the evaporative emission 
system leak test. Refer to  Evaporative Emission System Leak Test  in this 
section. 
�z Does the system pass the leak test?  No 
GO to 
A4  . 
A3 VISU

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FORD MUSTANG 2003  Workshop Manual PINPOINT TEST B: DTC P0455 MAJOR LEAK OR NO FLOW 
DETECTED OR DTC P1443 VERY SMALL OR NO PURGE FLOW 
DETECTED IN SYSTEM  Procedure  in this section. 
�z Pressurize the EVAP system to 3.48 
kPa (14 inc

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FORD MUSTANG 2003  Workshop Manual PINPOINT TEST C: DTC P1450 EXCESSIVE VACUUM DETECTED IN 
THE FUEL TANK  Tester to the fuel filler pipe. 
�z Pressurize the EVAP 
system to 6.47 to 6.97 kPa 
(26 to 28 inches H 
2 O). 
�z Does the pres

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FORD MUSTANG 2003  Workshop Manual PINPOINT TEST D: HISSING SOUND WHEN REMOVING FUEL CAP  �z
Pressurize the EVAP system to 3.48 kPa (14 
inches H 
2 O). 
�z Does the pressure drop immediately?  GO to 
Pinpoint Test D  . 
C3 CHECK FOR B

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FORD MUSTANG 2003  Workshop Manual PINPOINT TEST E: EXCESSIVE FUEL ODOR  Emission Repair Verification Drive 
Cycle  in this section. 
Test Step  Result / Action to Take 
E1 EVAPORATIVE EMISSION SYSTEM LEAK TEST 
�z
Carry out the Evapor