Mustang V6-232 3.8L VIN 3 TBI (1984)
Absolute Pressure Sensor: All Technical Service Bulletins
Exhaust - Poor Performance/No Start
Article No. 84-16-20
PERFORMANCE POOR/NO START
-
EXHAUST SYSTEM (CATALYST) RESTRICTED - (3.8L) - CAUSE OF REPEAT SERVICE
FORD 1984 MUSTANG, T-BIRD, LTD
LINCOLN-MERCURY 1984 CAPRI, COUGAR, MARQUIS
CALIBRATIONS: All 3.8L with C.F.I.
Poor Performance or No Start symptoms may be caused by a plugged or restricted exhaust system. If this condition is verified (see 1984
Emissions/Diagnosis Manual HC, Section 5-3) the following steps should be performed to identify and eliminate the prime causal factors and preclude a
repeat service.
1.
Check the spark plugs for fuel fouling. The use of scope is recommended. Do not attempt to clean (blow-off or burn-off) the plugs by running
the engine at high RPM's. All fouled plugs must be removed and cleaned or replaced.
2.
Check the coolant. Fill to correct level with proper coolant as required.
3.
Check fuel pressure. The specified fuel pressures are:
System
Fuel Pressure
1984 Shop Manual
CFI
35-45 PSI
Book H Section 25-139
4.
Run Quick Test and service as required. Check the MAP sensor with the MAP Sensor Tester (if available) and service as required.
5.
If the causal factor has not been identified by this time, road test the vehicle for 10 miles and run Quick Test again. If the vehicle passes,
return to the customer.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP5212A84
TIME:
1.6 Hrs. DLR. CODING: Basic Part No. DRIVE Code: 53
