I started this new thread becasue it seems to be a separate subject from EGR cleaning and oil usage. In a previous post I mentioned that I had changed out my alternator and battery last summer. Since then, but not immediately after, the CEL has been blinking as I described in the previous post titled, "2000Trooper - Intermitten Blinking CEL!!!!".

The last reply I received from amigo-2K indicated that there may be issues with aftermarket alternators' voltage regualtion and suggested I do a search for such information in this and other forums. Well, I tried and couldn't find anything. Okay, I admit, I'm not the most internet or forum saave person. So, could someone help me out with this? How do I do a forum search, other than just scrolling through the thead titler?

Where can I find more information about alternators for 2000 Isuzu Troopers?

If I take it to an Autozone or Advance and have the electrical system checked, will they be able to tell me anything?

What should I be looking for anyhow?

What are some telltale signs that my voltage regualtion may not be right?

Thanks much for all your help.

Sincerely,

Larry McCandless

http://www.4x4wire.com/forums/showflat.php?Cat=&Number=641799&page=&view=&sb=5&o=&fpart=1&vc=1 Is one link.

Still don't think this is your problem as you are not reporting your problem started with the new alternator, a drained battery over time, worse symptoms (e.g. stange dash lights) with time. But no doubt I could be wrong.

Try these forums, they have heaps of info, but you have to be quick to keep up sometimes:


http://www.4x4wire.com/forums

Scroll down to Isuzu.
The Tech Talk moves slower, but the Isuzu 4x4 & SUV Talk moves quicker.

Good Luck.

I checked my records and discovered that I didn't purchase the alternator at a chain auto parts store; I had to go through a specialty alternator/generator store and I did get a factory alternator. I remember that Isuzu has a special voltage regulator in their alternators and for some reason Autozone/Advance didn't stock them; they showed it as a dealer item.

Anyway, since I changed the plugs, no CEL, but I want to give it more time before I declare a victory.

Thanks for all the replies.