Comanche 4WD L4-150 2.5L VIN H TBI (1986)
Fuel Injector: Customer Interest
Fuel Injector - Hard Starting Condition
1E352
JUNE, 1987
1986 CHEROKEE-WAGONEERCOMANCHE and 1987 WRANGLER with 2.46L ENGINES and TBI
ENGINE
ATTENTION: Workshop, Parts Department
HARD STARTING CONDITION
1986 Cherokee-Wagoneer-Comanche models and 1987 Wrangler models built before VIN 2BXXXXXXXXX524690 with 2.46L TBI engine may
exhibit repeated stalls when starting cold. This condition may be caused by a fuel injector.
Service correction involves diagnosis to verify that the fuel injector is causing the condition and, if necessary, replacing the fuel injector.
DIAGNOSIS PROCEDURE
1.
The vehicle must be currently exhibiting the condition. That is, vehicle will stall after starting when the engine is cold.
2.
Disconnect field wire (A) at the alternator.
3.
Start the vehicle. If the vehicle continues to run, fuel injector replacement is required.
4.
If the engine continues to stall, perform vehicle test with the M.S. 1700 and continue diagnosis.
5.
Turn off the ignition and connect field wire
(A)
at the alternator.
FUEL INJECTOR REPLACEMENT
1.
Remove the air cleaner assembly.
