Fuel Pump Does Not Run
07.3-84012 Fuel Pump Does Not Run Engines 102, 110, 1/84116,117
Cause:
Fuel pump relay defect.
Remedy:
Before replacing the fuel pump relay, check current draw of fuel pump.
Nominal Values:
Engines 110, 116, 117
Model Year 1981 and earlier = approx. 11.2A
Model Year 1982 and later = approx. 7.5A
Engine 102.96 = approx. 8A
If the current draw is above 15A, or 10A respectively and on engine 102.98 above 7A, the fuel pump must be replaced.
Measuring Points:
Remove fuel pump relay and check with ammeter on fuel pump relay plug between terminal 87 and terminal 30.
Model Year 1981 and earlier: Terminal 1 and 2.
Model Year 1982 and later: Terminal 7 and 8.