Charging system issues
#1
Charging system issues
I have a 2005 MCS, I installed the Scangauge 2 into the obd 2 port and my voltage while the car is running AT IDLE is at around 12.2 with the a/c on. If I turn all the loads off than I get to about 13.3-13.5 volts. If I turn on ALL the loads than it will get as low as 10.3 volts. When I rev it up with all the loads placed than it will go up to about 12.4-12.6. I don't see any warning lights or any noticeable dimming of the lights on the car. I also put a multi-meter on the battery itself and noticed the same issue.
I have replaced the cooling fan because the low side did not work and the high side was making a weird noise.
But most importantly, I replaced the Alternator with a new Denso unit to replace the Denso unit I had in it.
What's going on?
I have replaced the cooling fan because the low side did not work and the high side was making a weird noise.
But most importantly, I replaced the Alternator with a new Denso unit to replace the Denso unit I had in it.
What's going on?
#2
Maybe the bearings of a component off the belt is going bad resulting in "drag" on the accessory belt when at idle or water pump going bad? I had similar issue originally diagnosed as a possible issue with original alternator, turned out to be the water pump.
When the water pump was off/inspected, the internals were almost jammed/gummed up, and I do regular flushes and it was second water pump too. There was no indication of the pump causing cooling issues either. My Scangauge II always indicated 177-181*f too.....
When the water pump was off/inspected, the internals were almost jammed/gummed up, and I do regular flushes and it was second water pump too. There was no indication of the pump causing cooling issues either. My Scangauge II always indicated 177-181*f too.....
#3
At that point than ill wait until I service the supercharger.
I also replaced the belt because the old one looked like poop. No dice.
I also removed the 100Amp fuse to see if the power steering pump was causing the voltage drop because when I tuned the wheel I saw a significant voltage drop.
I still had the issue.
The weird thing is that when I first start the car after letting it sit a while, the voltage for a minute or so after initial start up is around. 13.5.
Why the hell is there a light on the dash that doesn't light up when something like this is going on?
I also replaced the belt because the old one looked like poop. No dice.
I also removed the 100Amp fuse to see if the power steering pump was causing the voltage drop because when I tuned the wheel I saw a significant voltage drop.
I still had the issue.
The weird thing is that when I first start the car after letting it sit a while, the voltage for a minute or so after initial start up is around. 13.5.
Why the hell is there a light on the dash that doesn't light up when something like this is going on?
#4
Maybe the bearings of a component off the belt is going bad resulting in "drag" on the accessory belt when at idle or water pump going bad? I had similar issue originally diagnosed as a possible issue with original alternator, turned out to be the water pump.
When the water pump was off/inspected, the internals were almost jammed/gummed up, and I do regular flushes and it was second water pump too. There was no indication of the pump causing cooling issues either. My Scangauge II always indicated 177-181*f too.....
When the water pump was off/inspected, the internals were almost jammed/gummed up, and I do regular flushes and it was second water pump too. There was no indication of the pump causing cooling issues either. My Scangauge II always indicated 177-181*f too.....
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