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well i finally fixed it for sure ,like you guys said intermittently defective regulator in both generators ,took them both to a old school rebuild shop ,200 bucks well spent .. thanks too every one who helped me

you need too check and clean all connections,also check the generator bulbs they must light,make sure the generators are receiving feild voltage at the top plastic push in plug 12 volts and the large lug on the rear of the generator should be 12 volts, clean grounds test batteries ,you also...

Well just swapped generators from drivers gen too passenger gen , still not charging on the gen one side , all input voltage is present , don't know ...

Yes ohm's were to spec , it was charging again for 20 minutes, again I thought I fixed it , the resistor was bypassed by the last owner , removed card and cleaned the contacts replaced the gp relay on the bulkhead , when I shut the truck down than restarted it it stopped charging , I'm pulling...

Ok replaced the relay with the st85 napa , Check the glow plugs and they do go off after warm up cycle , this don't make sense , I still wonder the first time I cleaned the bulk head connector the generator started charging but the glow plugs didn't come on ... I'm missing something ..

Ok , will do .

We're bracing for a winter storm in pa hope I get her fixed !

Just checked it , yes continuity from body too the small terminals , (blue wires) .with key off I have 12 volts at red terminal

i just checked my glow plug relay its grounded too the body via the mounting bracket is this correct , and if not where does the ground go and should it be isolated ?

Yes the guy I bought it from replaced it , looks bran spanking new , it really stinks she runs so good and starts right up even on the coldest day , I just can't believe last night it was charging great but the glow plugs were not working , lol I'm going to check out that new relay to see if the...

Well came out this morning and the same thing gen 1 not charging , did the voltage checks again 12 volts when running at both wires in the plastic plug atop the generator , went over the bulkhead plug again cleaning and testing once more removed fuse block cleaned all spade connections , still...

31 dec 2013 18:30 hours, generator# one was a no go on the charging output, as per ordered ,worthog advised removing and cleaning bulkhead main harness connector too fuse block, before cleaning the contacts and all spade termanils #1 generator voltage was 12.6 volts indicating a no go on the...

31 dec 2013 18:30 hours, generator# one was a no go on the charging output, as per ordered ,worthog advised removing and cleaning bulkhead main harness connector too fuse block, before cleaning the contacts and all spade termanils #1 generator voltage was 12.6 volts indicating a no go on the...

And yes 2.4 volts key on and engine running big red wire in the plug shows batt voltage

Thank you will try that after work , I'll let you know if that fixes. Happy new year

Generator drivers side : voltage readings , plug on top red wire 12 volts key on and key on , exciter wire key off no volts key on and running 2.4 volts same readings on the passanger side generator cleaned connectors check some of the grounds , also when I had my volt meter on the front battery...

Did the checks on the plug key on key off , all was correct readings , going to clean the ground and the terminal plug spades , a little about me , mechanic in the guard and as my regular job also , 25 years working , I'll let you know tonight after work what the outcome is , thank you for the...

It's the stock generator and yes it's grounded to the engine block ,I just purchased it last week , of course he didn't tell me about this , the truck is stock , the pic is the same gen that's on the truck , the only mod I see is the glow plug resistor is bypassed , and 12 volts is directly feed...

Having a serious issue drivers side gen not charging , all gen lights working system is stock military did the voltage checks at the regulator and excited wire checked all grounds have 12.6 volts at large red lug at rear of generator had the unit off and tested at a reputable shop . one thing I...