Writefast
Full Access Member
- Joined
- Dec 23, 2023
- Posts
- 146
- Reaction score
- 180
2007 Yukon SLT 5.3. So after removing the MAF and cleaning MAF and throttle body I took her for a drive. Seemed a bit smoother than normal which was good. But about five min in the cluster threw the Service Battery Charging System Soon warning. I looked at the gauge at it was hovering just about 1/2 way between 9 and fourteen and dropping slowly. It’s blazing hot out so the ac was blasting and I was running full lights. Killed the lights and ac and gauge walked back up to 14 and then climbed a bit higher. Came to a stop in traffic so I decided to test. Turned in ac, no immediate change. Turned on lights and the gauge started dropping again. So I killed them all again. Traffic starts moving again so I test again. Ac, no problem. Lights, and the gauge drops but more slowly. Pull into a parking lot and open the hood. Nothing looks amiss. Coolant is full, all connections that I might have bumped or broken look good. I kill the motor (I have a portable jumper), wait five min and it fires up immediately no problem. Drive her back home and it’s pretty much the same except the coolant warning is gone. What in the actual FortNine is going on here? There’s no weird flickering as far as I can tell. Alt is only 2-3 years old. Battery less than a year.
There is one other weird thing. After reinstalling the MAF et al, when I fired her up I reached in and turned the key and released as normal, she did not fire up immediately but she did, without me keeping the key turned, continue to turn over by herself as I stood outside the vehicle. It was so weird it took a second to register. lol. Did that for maybe 10 seconds if that long and then fired up strong as normal.
I’m currently lost. lol. What did I break?
There is one other weird thing. After reinstalling the MAF et al, when I fired her up I reached in and turned the key and released as normal, she did not fire up immediately but she did, without me keeping the key turned, continue to turn over by herself as I stood outside the vehicle. It was so weird it took a second to register. lol. Did that for maybe 10 seconds if that long and then fired up strong as normal.
I’m currently lost. lol. What did I break?