Voltage regulator melt

[TF360]

Why do mopar Voltage regulators melt from the back side? Is that an indication there is a problem?

 

[67Dart273]

I was not aware that they did!!!!

 

[bigtom]

The regulator MUST be grounded... I used bigger screws and added another wire for grounding.

 

[TF360]

Oh your funny 67 Dart

 

[valiant1966]

Are you sure you're not talking about the ECU ? I've seen the gel in the back of them ooze out of some of them.

 

[KitCarlson]

The ooze is the potting that protects the circuit board from moisture and contaminates. I am sure what they used varied or changed with age and the operating environment. A common potting is fluorosilicone, it is gel that is non hardening and self healing if it is cut.

 

[TF360]

Yes it looks like a gooey gel coming from the back of the voltage regulator

 

[67Dart273]

I would check the alternator field current draw. This is in the service manual. What are you running for an alternator?

I'm not aware, seriously, that this has been a 'typical' problem with these. I your regulator a branded Mopar, or replacement aftermarket?

 

[tekslk]

There metal on the front the goo haas to go out the back.

 

[Triple J]

check your connection to the voltage regulator, one of my wires was not making the connection causing the back of my voltage regulator to melt. and alternator fried the battery

 

[moparisbest]

simple answer they get hot under the hood of the car so ( heat) the end lol