Chrysler Repair Questions? Ask a Mechanic for Answers ASAP
Hello. My name is ***** ***** I will be assisting you today. This is very bad. The first thing to do, is let the vehicle completely dry. With him pressure washing the motor while it was running, he has more than likely shorted some things out, and possibly the PCM. A good sign is that the vehicle still turns over. Do you know if he sprayed the spark plugs and wire/coils area?
I understand. Once the motor complete dries, he should first check all the fuses and replace any blown ones. If none of the fuses are blown, then proceed to check to be sure that no water has gotten into the cylinders. This would prevent the cylinders from firing.
After this, if the vehicle doesn't start, then you would need to check for fire and fuel as usual, but if you aren't getting fire or fuel, then I would check the PCM.
I am leaning towards that if you let the vehicle dry and check the fuses, the vehicle will start. There is a possibility of electrical damage, though. Just so that you are aware.
The PCM(powertrain control module) is the computer for the vehicle, which controls the fuel and ignition.
If you started for a second then shut off, means that the vehicle is capable of running, it's just dying out. Could be because of a sensor or the PCM. Do you have a scanner to try and scan for codes?
I understand. What has likely happened, is the water has shorted the PCM out. If this is the case, then it will have to be replaced. Before we jump to conclusions, I would at least give the vehicle time to dry out.
Not a hundred percent sure, but I would at least wait 24 hours.
You may even want to disconnect the PCM and the battery.
Just to be on the safe side.
Yes, you should leave it disconnected while drying.
If you have anymore question on this issue, don't hesitate to ask. Also, please don't forget to rate the service. Thanks again.
You will need to have the circuits check to see where the issue is. The issue is likely going to be apart of the ignition system. You can try monitoring the spark and fuel input during the time that you are starting the vehicle. You need to know which one(if not both) is cutting out.
This type of monitoring can be done with a capable scan tool or an oscilloscope.
Hello are you still needing help i would like to help you. The first thing that i would like you to do. Is disconnect both battery cables and rub them together as to make a good connection and then take something like vise grips and clamp them to each other and leave them like that for 10 15 minutes. Then disconnect and hook up your positive first and then the negative. Do i understand that you replaced the PCM? Did you get that pre programmed with vin or did you or someone else program it? Chrysler has fairly good sealing technology on there connectors, I pressure wash them all the time but not running. Your going to be fine. I beleive the reset i told you to do and do it exactly like that will take care of it for you. What you are doing is draining all the capacitors in all modules and erasing any memory or logic lock that may have occured, basically they all start fresh. If that doesnt get it i will be right here with our next step.
OKay please do the reset i suggested want take long
Hello have you had a chance to perform that action? Are you up and going?