2018 Silverado 2500 LT 1,300 miles
truck during the day shows volts at 12.5. I can turn on ac full blast, radio and defroster and colts stay at 12.5 all day. When driving volts stay at 12.5 when I’m rolling and foot of gas mpg gauge goes up to 99mpg then will charge at 14volts as soon as I hit the gas bolts drop to 12.5. And night when headlights turn on truck will charge at 14 volts. First two times truck was taken to dealer they said nothing is wrong now the third time they tell me that’s not normal and change alternator and never fixed the problem still in the shop. Anyone have same issues or volts stay around 13.2-14.5 volts all day and night
Has anyone hooked up dual alternators in a 1500 Silverado? I'm dealing with a 2011 that has a 5.3. Apparently GM used to have a factory plate for older generations of the Silverado to add the second alternator. I've found a 3rd party selling an adapter plate, idler pulley and belts for $215 but it seems awfully pricey for what they're selling.
New guy, just got out of the truck and heard this high whining sound that eventually goes away as it warms up.
Truck has 303,563 so far and I hope to go at least 500,000.
I'm guessing alternator as I feel a grinding when I touch it as it makes the noise.
Original engine and most parts. Trans at 165,000 nothing else major
I'm planning on upgrading my truck with a simple audio system, maybe 2 LED light bars, plus accessories.
1.For the audio system
Simply replace all the stock speakers with higher quality plus an amp. For the head unit, I'm looking into the 10in screen models. Also I found some bed storage bins that come with speakers as well which are perfect for tailgating.
A light bar, maybe 2, and some other lighting that I haven't decided on yet.
Train horn+air hose kit that comes with certain models.
I have a solar panel that I got on ebay that I use to maintain the battery since I'm always stopping and going due to my work. But I'm planning on upgrading the alternator, big 3 ground kit, and a second battery.
What do you guys think??
So it started happening to me about a week ago, my truck would just randomly not start. When it first happened, it would struggle to turn over. I said no problem and just bought a new battery for it. About 3 days after that, I went to the store and was only in there for about 2 minutes and got back in my truck and out of nowhere, nothing happened, not even a click. I checked my connections as best as I could, and eventually had to get jumped. Tried it again as soon as i got home, turned it off, immediately tried to turn it on and once again, not even my dash lights were coming up. I jumped it and took my negative off to see if it were the alternator or not but it kept running. Any thoughts?
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