Topaz FWD L4-140 2.3L HSC (VIN X) (1989)
THROTTLE BODY SLUDGE
1. Check the idle air flow per the adjustment procedure in the 1988-91 Engine/Emission Diagnosis Manual.
2. If the air flow is low, clean the throttle body per the throttle body/idle air by-pass valve cleaning procedure and adjust to specification.
3. If the vehicle still exhibits the concern, go to the next procedure.
INJECTOR DEPOSITS
1. Install Rotunda Injector Tester/Cleaner. Check flow on all injectors.
2. If injectors test OK, proceed to the next procedure.
3. If an injector is suspect, clean it until it is in specification or, if necessary, replace it.
4. Repeat cold starts after an overnight soak.
5. If concern still exists, go to the next procedure.
IDLE AIR BY-PASS VALVE
1. Replace the air by-pass valve. Refer to the Parts Block for correct parts usage.
2. If the condition still exists, proceed to the next procedure.
FUEL VOLATILITY
If the fuel used in the vehicle is premium high octane or suspected of being a low volatility fuel, advise the customer to replace it with regular unleaded
fuel at next refueling.
PART NUMBER
PART NAME
CLASS
E9AZ-9F715-A
By-pass Valve
B
F13Z-9H307-A
Fuel Pump
B
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION DESCRIPTION
TIME
911104A
Check Fuel Pressure
0.2 Hr.
911104B
Replace Fuel Pump
0.9 Hr.
911104C
Check Idle Air Flow
0.2 Hr.
911104D
Clean Throttle Body And
0.5 Hr.
Idle Air Bypass
911104E
Clean And Check Flow On
0.8 Hr.
All Injectors
911104F
Replace injector
0.8 Hr.
911104G
Replace Idle Air By-Pass
0.6 Hr.
Valve
DEALER CODING
BASIC PART NO. CONDITION CODE
DRIVE
J7
OASIS CODES:
607000
Technical Service Bulletin # 91114
Date: 910530
Engine - Stalls After Start and Long Cranks
Article No.
91-11-4
05/30/91
STALLS - 2.3L HSC - AFTER START AND LONG CRANKS - COLD ENGINE