5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

When alternator is going or voltage regulator

Thread Tools
 
Search this Thread
 
Old 03-16-2006, 12:35 AM
  #1  
philly3384
2nd Gear Member
Thread Starter
 
philly3384's Avatar
 
Join Date: Feb 2005
Location:
Posts: 388
Default When alternator is going or voltage regulator

Could it make the car run not up to par becuase of the low voltage it is sending.
philly3384 is offline  
Old 03-16-2006, 12:38 AM
  #2  
ckyguy68
5th Gear Member
 
ckyguy68's Avatar
 
Join Date: Jan 2006
Location:
Posts: 2,103
Default RE: When alternator is going or voltage regulator

yes, when my alternator went bad, for a short period of time i was running straight off the battery. at about 3500 rpm the car would just bog down. i bought a new alternator, and it felt like a new car.
ckyguy68 is offline  
Old 03-16-2006, 06:02 PM
  #3  
philly3384
2nd Gear Member
Thread Starter
 
philly3384's Avatar
 
Join Date: Feb 2005
Location:
Posts: 388
Default RE: When alternator is going or voltage regulator

what brand alternator did u get... how long were the symptoms of the car doing this or did it just happen out of nowhere.
philly3384 is offline  
Old 03-16-2006, 06:34 PM
  #4  
ckyguy68
5th Gear Member
 
ckyguy68's Avatar
 
Join Date: Jan 2006
Location:
Posts: 2,103
Default RE: When alternator is going or voltage regulator

i just got a boshe from murrays. the systoms came up one day. a day later i was driving and the car started to stutter and stall, and i realized my voltage was gone. i installed the new alternator, and ran like a champ.
ckyguy68 is offline  
Old 03-16-2006, 06:34 PM
  #5  
joelacer
 
joelacer's Avatar
 
Join Date: Jan 2006
Location:
Posts: 45
Default RE: When alternator is going or voltage regulator

I don't mean to hijack the thread but I might have the same problem. My engine seems to really crap out about 4500 rpm, and my alternator gauge needle is usually on the low side of "normal" . So is my alternator going out, or is it just the way the 5.0 engine is at high rpms?
joelacer is offline  
Old 03-16-2006, 06:38 PM
  #6  
ckyguy68
5th Gear Member
 
ckyguy68's Avatar
 
Join Date: Jan 2006
Location:
Posts: 2,103
Default RE: When alternator is going or voltage regulator

the 5.0 may not be a high rpm engine, but it should NOT be crapping out at 4500 rpm. are there anysigns of low voltage? does the engine turn over slower? i noticed that when i had my problem. also, is it the origional alternator? if it is, i cant hurt to buy a new one.
ckyguy68 is offline  
Old 03-16-2006, 06:43 PM
  #7  
joelacer
 
joelacer's Avatar
 
Join Date: Jan 2006
Location:
Posts: 45
Default RE: When alternator is going or voltage regulator

The only signs of low voltage are the semilow needle on my alternator guage, which seems to move a bit more than it should. also, it takes a few seconds and the engine turns over a few times before its starts. Thats part of why I'm changing the spark plugs.
joelacer is offline  
Old 03-16-2006, 06:45 PM
  #8  
ckyguy68
5th Gear Member
 
ckyguy68's Avatar
 
Join Date: Jan 2006
Location:
Posts: 2,103
Default RE: When alternator is going or voltage regulator

the plugs could be your problem. change those and if that doesnt work i would go to fuel pump next. its most likely not your alternator, unless you are seeing obvious signs.
ckyguy68 is offline  
Old 03-16-2006, 06:55 PM
  #9  
88BlueGT
6th Gear Member
 
88BlueGT's Avatar
 
Join Date: Sep 2005
Location: Hamilton, NJ
Posts: 15,042
Default RE: When alternator is going or voltage regulator

+1
88BlueGT is offline  
Old 03-19-2006, 09:39 AM
  #10  
philly3384
2nd Gear Member
Thread Starter
 
philly3384's Avatar
 
Join Date: Feb 2005
Location:
Posts: 388
Default RE: When alternator is going or voltage regulator

anyone else
philly3384 is offline  


Quick Reply: When alternator is going or voltage regulator



All times are GMT -5. The time now is 04:44 PM.