alternater bad or not
From : bobbyrobert via carkb com u46077 uwe
Q: my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to shucks they tested it said it was good so put it back in and same thing works for about 10 minutesthen nothing could the alternater be bad even though it test good or is something else wrong tested battery had it charged its good plese help iam lost -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 .
Replies:
From : bryan
bobbyrobert wrote bryan wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks quoted text clipped - 15 lines glenn beasley chrysler tech doesnt this use a separate voltage regulator if so its possible the vr is shutting down or something upstream from the vr is intermittently open-circuited. bryan nope internal regulater one source partsamerica.com seemed to indicate their part would work with various mopars from 69 thru 94. i /know/ this to be untrue. another source sez exc. delco leece-neville equipped; years 1990-1991. bryan .
From : maxpower
maxpower wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to shucks they tested it said it was good so put it back in and same thing works for about 10 minutesthen nothing could the alternater be bad even though it test good or is something else wrong tested battery had it charged its good plese help iam lost the charger system is monitored by the engine controller and if there is a problem a fault code would be set. you mention nothing about a check engine lite being on. if it isnt on you may want to check for fault codes in the pcm glenn beasley chrysler tech engine check light is on but not sure how to check codes dont have a scanner can you help me check codes with out scanner -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 more then likely you have a fault code for generator field not switching properly.. view this link http//www.allpar.com/fix/80s-codes.html .
From : bobbyrobert via carkb com u46077 uwe
maxpower wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to shucks they tested it said it was good so put it back in and same thing works for about 10 minutesthen nothing could the alternater be bad even though it test good or is something else wrong tested battery had it charged its good plese help iam lost the charger system is monitored by the engine controller and if there is a problem a fault code would be set. you mention nothing about a check engine lite being on. if it isnt on you may want to check for fault codes in the pcm glenn beasley chrysler tech engine check light is on but not sure how to check codes dont have a scanner can you help me check codes with out scanner -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 .
From : bobbyrobert via carkb com u46077 uwe
bryan wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks quoted text clipped - 15 lines glenn beasley chrysler tech doesnt this use a separate voltage regulator if so its possible the vr is shutting down or something upstream from the vr is intermittently open-circuited. bryan nope internal regulater -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 .
From : bryan
maxpower wrote bobbyrobert via carkb.com wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to shucks they tested it said it was good so put it back in and same thing works for about 10 minutesthen nothing could the alternater be bad even though it test good or is something else wrong tested battery had it charged its good plese help iam lost -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 the charger system is monitored by the engine controller and if there is a problem a fault code would be set. you mention nothing about a check engine lite being on. if it isnt on you may want to check for fault codes in the pcm glenn beasley chrysler tech doesnt this use a separate voltage regulator if so its possible the vr is shutting down or something upstream from the vr is intermittently open-circuited. bryan .
From : maxpower
my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to shucks they tested it said it was good so put it back in and same thing works for about 10 minutesthen nothing could the alternater be bad even though it test good or is something else wrong tested battery had it charged its good plese help iam lost -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 the charger system is monitored by the engine controller and if there is a problem a fault code would be set. you mention nothing about a check engine lite being on. if it isnt on you may want to check for fault codes in the pcm glenn beasley chrysler tech .
From : steve w
bobbyrobert via carkb.com wrote bg wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to quoted text clipped - 6 lines message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 how did you determine the alternator stopped working when they tested it did they test it for 10 minutes under full load bg pulled the battery cable truck died no they tested it for i dont know 60 secounds uh if your really lucky you didnt damage the engine computer or a few other components. never ever remove the battery cables on a vehicle made since about 1980 if the engine is running. if your real lucky you only fry parts of the alternator. the usual problem is to fry the regulator. the next is that you burn out a diode or two. -- steve w. near cooperstown new york .
From : bobbyrobert via carkb com u46077 uwe
bobbyrobert wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to quoted text clipped - 5 lines when they tested it did they test it for 10 minutes under full load bg pulled the battery cable truck died no they tested it for i dont know 60 secounds when it was working and i pulled the battery cable truck did not die and the voltage gauge started dropping the test done at shucks auto parts was under load but it wasent that long of a test -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 .
From : bobbyrobert via carkb com u46077 uwebobbyrobert via carkb com u46077 uwe
bg wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to quoted text clipped - 6 lines message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 how did you determine the alternator stopped working when they tested it did they test it for 10 minutes under full load bg pulled the battery cable truck died no they tested it for i dont know 60 secounds -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 .
From : bg
bg wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to quoted text clipped - 6 lines message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 how did you determine the alternator stopped working when they tested it did they test it for 10 minutes under full load bg pulled the battery cable truck died no they tested it for i dont know 60 secounds -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 pulling the battery cable used to be a valid way to check but as others have said it can cause damage. especially to sensitive electronic equipment. i think your best bet is to bench test the alternator for ten minutes under full load. if it passes then the next step would be to check the regulator regulator. some alterntors have the regulator built in some have the regulator as part of the computer and some vehicles have the regulator as a seperate part mounted on the firewall. an 18 year old vehicle is bound to have poor connections by now. being intermittant that is the first thing i would suspect. bg .
From : peterd
on sat 13 sep 2008 033412 gmt bobbyrobert via carkb.com u46077@uwe wrote bg wrote my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to quoted text clipped - 6 lines message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 how did you determine the alternator stopped working when they tested it did they test it for 10 minutes under full load bg pulled the battery cable truck died major mistake. never ever disconnect the battery while engine is running--this can damage computers alternators and other electrical components. if you dont know how to test an alternator then dont just screw around like this... youll do more damage than good. no they tested it for i dont know 60 secounds so then their test was not terribly valid given the conditions you say it failed at. take the truck to a good mechanic who knows electrical stuff and have him test it. if you are lucky you have not damaged anything. .
From : bobbyrobert via carkb com u46077 uwe
carolina watercraft works wrote thats the beauty of remans. they can work for 10 years 10 months 10 days 10 hours...or 10 minutes. ill never buy a bebuilt electrical item after all the things ive seen from them. my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks quoted text clipped - 6 lines good plese help iam lost this was a new one i ve had the same problem with remans before myself thats why went with brand new -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 .
From : carolina watercraft works
thats the beauty of remans. they can work for 10 years 10 months 10 days 10 hours...or 10 minutes. ill never buy a bebuilt electrical item after all the things ive seen from them. -- ------------------------------------------ laszlo almasi ----cool toys formerly carolina watercraft works ----mack daddy trailers ----ice angels my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to shucks they tested it said it was good so put it back in and same thing works for about 10 minutesthen nothing could the alternater be bad even though it test good or is something else wrong tested battery had it charged its good plese help iam lost -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 .
From : bg
my 1990 dodge le 250 ram had bad alternater replaced with new one from shucks put it in and it worked for about 10 minutes then stoped took it back to shucks they tested it said it was good so put it back in and same thing works for about 10 minutesthen nothing could the alternater be bad even though it test good or is something else wrong tested battery had it charged its good plese help iam lost -- message posted via carkb.com http//www.carkb.com/uwe/forums.aspx/dodge-truck/200809/1 how did you determine the alternator stopped working when they tested it did they test it for 10 minutes under full load bg .