Question about 1990 Dodge Dynasty

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Charging problem I have replaced the Alternator and Battery. Cleaned the battery posts and made sure the belt was clean and tight. I am still getting 12.2 Volts and dropping when I put a multimeter across the battery terminals. It looks the problem is still there. I am told there is not a regulator external to the alternator but there is a 4 wire black block connecting directly between the Alternator and the battery. What is this and could it be the problem?

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Could you clarify your engine size?

4 Cylinders K 2.5L TBI SOHC 6 Cylinders 3 3.0L FI (found in 36% of 1990 Dodge Dynasty) 6 Cylinders R 3.3L FI (found in 64% of 1990 Dodge Dynasty)


If you have the 3.3L the voltage regulators are located in the Powertrain Control Module (PCM) or Single Board Engine Controller (SBEC), depending on the model. If, after diagnosis, the regulator is deemed faulty, the PCM/SBEC must be replaced with a new one.

Hope this helps for now

Posted on Jul 06, 2008

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