Re: Issues with my Volvo
My Veterinarian has a '94 and, like yours, is an electrical challenge in keeping running.
The best fix I found is ground the alt case to the battery negative post with 8 AWG wire.
Yes, the case is isolated on its bracketry, but if you look, you will find a ground lead from the case stud to the bracket. Using the DMM in measuring resistance from alt case to neg battery post, there was 10 ohms, not a straight low resistance path.
Also, at the same time, I ran an 8 AWG wire from the alt BATT stud to the positive battery post. I also found 5 ohms of resistance in this path.
Overall, the electrical system gained better turn on and performance of the alt, it is now instantaneous rather than rev the engine up to 4000 rpm to 'turn' on the alt, and gained almost a volt overall.
Another fault I found was the ign switch - poor connection for the warning lights power.
And another fault was a burnt copper run on the inst cluster board not passing battery voltage to the warning lights - had to solder in a wire from the connector to the actual run - low watt solder iron - 25 Watt.
Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - maybe this year, 2019 ...