What causes overcharging alternator?
What causes overcharging alternator?
Improperly jump-starting the vehicle can send a surge through the battery that destroys one or more cells in the battery or shorts it out. This surge disrupts the wiring in the alternator, causing an overcharging condition.
Is the alternator not communicating with the ECM?
Dodge Grand Caravan Questions – ECM not communicating with alternator’s voltage regulator. – CarGurus.ca ECM not communicating with alternator’s voltage regulator.
What causes an alternator to get really hot?
High voltage, bad diode, improper alt fan, bad bearing , defective heat sink ,high voltage drop accross alt power wire or ground wire . A few places to check alternator fan, now why didn’t I think of that?
Can a high output alternator damage the car’s computer?
Batteries will buffer most damage caused by out of range voltage issues. Even a stock alternator is capable of massive voltage output, but is regulated to around 14V through the voltage regulator. High Output alternators are regulated in the same manner.
Is there a bad wire to the ECM?
Suspected bad wire to ECM or ECM. The ECM in some manner controls the voltage regulator, which charges the battery. The voltage regulator works all on its own. The computer does not control it in any way. Yes the charging system goes through the pcm ,The Electronic Voltage…
Why is my ECM not communicating with alternator’s voltage?
Whether or not thats the problem right now can be in question but until you eliminate that shitty stock plug which can cause all sorts of weird problems, you wont know for sure and you could spend hundreds on all the wrong things. 3 people found this helpful. With a simple, secure transaction.
What causes an alternator to run very hot?
Alternator running very hot. ABS pump not an issue, pulled the fuse and have the same result. Alternator running hot to the point where you cannot touch it and this is my third alternator. Have installed one new battery and everything was good for an hour then it seemed that something cut-in and now running hot again.
Suspected bad wire to ECM or ECM. The ECM in some manner controls the voltage regulator, which charges the battery. The voltage regulator works all on its own. The computer does not control it in any way. Yes the charging system goes through the pcm ,The Electronic Voltage…
Can a new starter cause an ECM to fail?
Installing a new starter can also cause ECM failure. This is because they often bypass the surge protector on the ECM, leading to a power surge when you start the vehicle. The same thing can happen if you get your wires crossed while jumping your car. A failing battery can also cause ECM failure.
