Hello everyone,
The Volvo D4 alternator campaign is concerning the positive (Red) wire connected to the alternator. The wire on some D4 engines was connected in such a way that the wire is too close to the alternator itself, which could potentially cause chaffing. The fix for this campaign is to simply unbolt the wire and turn it around, providing more space between the cable and the alternator. If looking to inspect this wire yourself, there is a black plastic cover that will need to be removed by unscrewing the single bolt holding it in place. You can then visually inspect the wire and connection. Once we received notice of the campaign we have been inspecting every D4 that comes through the factory, and reporting our findings to Volvo so they can remove the campaign from those engines. This is why some will experience the campaign, and other's will not. The serial number range for engines affected is: A191179 to A957200. If your engine has been recently into a certified Volvo Penta service center they should have inspected this at no charge. For all others, you'll want to go to volvopenta.com to locate the nearest service center.
I will say that out of the 90-100 engines I've personally inspected, there has not been one that needed anything more than an inspection. Please feel free to reach out directly to my email listed below with any additional questions.
-Tim
