Wow, how old a vehicle is this? The generators have been gone from most GM products since the early 1960s. I converted my 1961 Chevrolet from the old generator to an alternator, but this was in the days before the regualtors were built-in. The biggest three problems for me then were: Getting a top bracket for the alternator, since the alternator was different from the generator it replaced Making sure the external regulator was integrated into the ignition system for the initial voltage to operate properly (and making sure the dash ligh worked) and
one minor operational problem, the alternator would not charge properly at first crankup each start. I had to get the engine RPM up above an idle to get the regulator to start working, and getting the alternator on line to charge. Quite simple, now, actually, since the newer alternators have internal voltage regulators. The mechanical part of mounting the new alternator might be a bit of a problem, but I'd submit a friendly GMC parts guy might be able to look at some old parts catalogs and determine the different mounts GMC used in the first few years of alternators in that engine series.
Install a good generator or alternator.
the starter,battery and the alternator are good,icheck and change the the wires but the light inside the dashboard,the headlights come on but the truck will not start.
facing the fron of truck look on left side below battery . alternator is down there it can be changed from on top or underneath
how do you install alternator on 2000 Ford diesel truck
Loosen the belt and unbolt the alternator.
How do you install an alternator belt on a 1986 GMC s15 pickup truck
86.5 from 720 to d21 hardbody.
Remove the belt from your 2001 Chevy S 10 pickup truck alternator. Remove the wiring harness from the back of the alternator. Remove the alternator retaining bolts. Reverse the process to install your new alternator.
Well if you can drive around for 15 to 30 min and you battery is still dead then your alternator is bad or if you put a new battery in and it go's dead avry time you run the truck then your alternator is bad
remove the bad one buy a new one install in reverse order of removal
Had this happen to my 83 Longbed. It was the generator (or alternator, whatever) failing. Shop told me the impossible combination was picked to show the electrical problem. Not sure if that is the issue, but a knowledgeable shop sould be able to sort it out for you. It's a bad alternator, yes, brake and charge light on is the classic symptom. Replace the alternator, or change the brushes if you're clever.
I unhooked wires on alternator but did not mark wires
Start the truck then disconnect the battery if it's still running the alternator is good
It is built into the alternator It is all 1 unit. Replace alternator.
need diagram for 1986 Nissan truck alternator
check the wiring change the starter relay and clean ignition switch with electicial cleaner.
Bad charging system? alternator or generator does not supply enough power to keep battery charged to operate accesories. Bad battery? can't hold charge.
Well it maybe that the battery is to small for the truck or the alternator is bad
same as any other
It is built in to the alternator.
To change the alternator in the truck, first disconnect the battery and then disconnect a plug that the alternator has on the right top of the alternator. Then there is a red cover that has a bolt and then unscrew that and then there are two more larger bolt, one on top and one on the bottom and then it should come out. But before you do all that take off the belt. Thank you
I had the same problem withj my 2003 Silverado - change the alternator..it worked for me.
if your truck is running and you disconect the batery and the truck dies then its the alt
Inside the alternator.