Why is the intermitent blinking on my GM Truck?
I did a bit of looking into this, and according to GM, the P1638 sets if the PCM is not getting the correct signal for the alternator load, and they suggest checking the connections at the alternator and at the PCM.
When did the intermitent blinking battery light stop coming on?
They light eventually stopped coming on. About 150 miles later the light started doing it again, this time the volt meter had dropped about 2-3 volts. I was still about 120 miles from home so I turned off my stereo, my AC, and didnt even use cruise control. I was determined to make it home.
Why does my battery light keep going on and off?
I was on a long road trip. Out in the middle of no where my battery light started intermittently going on and off. I immediately checked the volt meter. It was normal at 14v. I keep driving. They light eventually stopped coming on. About 150 miles later the light started doing it again, this time the volt meter had dropped about 2-3 volts.
Why does the battery light flicker when I Turn on the car?
As soon as the temp seems to drop below 50 outside the problem seems to minimize and even go away for quite awhile. THE VOLTAGE is good. 14volts plus all the time. The volt gauge don’t even flicker when the battery light comes on. I’ve checked with a volt meter and all the grounds for the engine are good.
What’s the flashing security light on my GMC?
AllOffTopic.com FTW! It’s not security. Security issue would make it crank fine, fire up, and then stall immediately. I’d check the park interlock, that will prevent it from cranking in the first place. Check the park interlock as in it’s out of adjustment or what?
They light eventually stopped coming on. About 150 miles later the light started doing it again, this time the volt meter had dropped about 2-3 volts. I was still about 120 miles from home so I turned off my stereo, my AC, and didnt even use cruise control. I was determined to make it home.
I was on a long road trip. Out in the middle of no where my battery light started intermittently going on and off. I immediately checked the volt meter. It was normal at 14v. I keep driving. They light eventually stopped coming on. About 150 miles later the light started doing it again, this time the volt meter had dropped about 2-3 volts.
I did a bit of looking into this, and according to GM, the P1638 sets if the PCM is not getting the correct signal for the alternator load, and they suggest checking the connections at the alternator and at the PCM.