1997 Jeep Grand Cherokee Q&A
1997 Jeep Grand Cherokee Question: hit a pothole , stalled and wont start,,help!!
You need to connect a scan tool that has bi-directional capability. The fuel pump, ignition coil and more are all powered up by the ASD relay. The strategy is the relay gets turned on for about two seconds at key on, then it gets turned back off until the PCM see's the crankshaft sensor signal. With a scan tool you can command the PCM to turn the ASD relay on/off for several minutes at a time and you can test to prove where that circuit is failing. You'll probably need a tech to diagnose this for you, but this is a short outline of what it takes to do it. - cardocIII
That must have been some pothole! Did it stall immediately when you hit this pothole, just like you turned the key off? Do you have the owners manual? There is a couple of things that YOU can check out. - pushrod