What causes a relay to tick?
This can be caused by a computer failure, resistance in the ground wire for the control side of the relay or high resistance in the power supply to the control side of the relay. clicking you hear inside the relay case is the coil moving the contacts.
What is the automatic shut down relay on a jeep?
ASD relay “Automatic Shut Down relay” used on all EFI jeeps. 1990 to present. What is it? It is a safety device, that exists by LAW and for good reasons. It CAN prevent FUEL fires (the Classic Crash and burn reason) and engine hyrdolocking.
Why does my Jeep Wrangler not shut down?
Without digging into the other thread, my problem is either: 1) Battery cable connected, fuel pump won’t come on when key-on OR cranking. 2) Fuel pump won’t shut off the instant the battery cable is connected, maintains 35 psi and Jeep will start and run, but when I key-off the fuel pump continues to run.
What causes a jeep to have no start?
Most Chrysler and Jeep no start problems can be traced to the following items: • Auto Shutdown Relay (fails to provide power to the powertrain control module) • Transmission Range selector (PCM must see park or neutral before it will allow start)
What kind of Relay does a Jeep Grand Cherokee use?
APPLIES TO: This Auto Shut Down (ASD) relay circuit wiring diagram applies to the following vehicles: 1993, 1994, 1995 4.0L Jeep Grand Cherokee. ASD relay troubleshooting notes: The auto shut down (ASD) relay gets power from fuse #6 (15 Amp) and fuse #2 (20 Amp) of the Power Distribution Center (PDC).
ASD relay “Automatic Shut Down relay” used on all EFI jeeps. 1990 to present. What is it? It is a safety device, that exists by LAW and for good reasons. It CAN prevent FUEL fires (the Classic Crash and burn reason) and engine hyrdolocking.
Without digging into the other thread, my problem is either: 1) Battery cable connected, fuel pump won’t come on when key-on OR cranking. 2) Fuel pump won’t shut off the instant the battery cable is connected, maintains 35 psi and Jeep will start and run, but when I key-off the fuel pump continues to run.
APPLIES TO: This Auto Shut Down (ASD) relay circuit wiring diagram applies to the following vehicles: 1993, 1994, 1995 4.0L Jeep Grand Cherokee. ASD relay troubleshooting notes: The auto shut down (ASD) relay gets power from fuse #6 (15 Amp) and fuse #2 (20 Amp) of the Power Distribution Center (PDC).
What causes a jeep ASD relay to stop working?
Can be 50 causes, but in macro form is, bad engine bad spark plugs and wires, bad fueling, which can be flooding or lost fuel pressure (stavation) Stalls for bad engine are lost compression hot. Some engine can do that, even stuck open head valves now or only HOT. (and many more issues inside the actual engine)