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  • 1965 - 1973 Classic Mustangs -General/Talk-
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drop in rpm

  • Thread starter Thread starter 351w fastback
  • Start date Start date Jun 21, 2005
3

351w fastback

New Member
Jul 25, 2004
91
0
0
Jun 21, 2005
#1
  • Jun 21, 2005
  • #1
i just added an electric fan from a tauras and now when i turn it on, the engine rpm drops about 200 rpm. what would cause this? thanks
 

dennis112

15 Year Member
May 15, 2005
1,561
36
79
Amish Wonderland of Central PA.
Jun 21, 2005
#2
  • Jun 21, 2005
  • #2
351w fastback said:
i just added an electric fan from a tauras and now when i turn it on, the engine rpm drops about 200 rpm. what would cause this? thanks
Click to expand...


Alternator drag from trying to give the fan the juice that it needs.
 
3

351w fastback

New Member
Jul 25, 2004
91
0
0
Jun 21, 2005
#3
  • Jun 21, 2005
  • #3
is that normal then? i just put on a 130 amp alternator from a 94 mustang.
 

MustangMatt1966

New Member
Mar 11, 2004
1,004
1
0
Orlando Fl.
Jun 21, 2005
#4
  • Jun 21, 2005
  • #4
yup, normal, but if u upgrade the alternator and still have the original wiring, its pretty worthless....
 
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