Fuel - Intermittent Reduction of Power/Stall

Bulletin No.T 85-71 File in Group 6D
Number 25
Corp. Ref. No. 8055907
Date April '85
SUBJECT: INTERMITTENT REDUCTION OF POWER OR ENGINE STOPS RUNNING

MODELS AFFECTED: 1981 6.0L AND 1982-1985 4.1L DFI EQUIPPED VEHICLES

1981 - 1985 DFI INJECTOR CIRCUIT TEST:

Some 1981 through 1985 DFI equipped vehicles may experience an intermittent reduction of
power and/or engine stops running due to intermittent injector circuit operation. The following
trouble trees should be used when attempting to diagnose such a condition. In some cases, it
may be necessary to operate the vehicle and record the voltages as outlined, while the
performance condition exists.