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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

fuel pump going out??

  • Thread starter Thread starter old_blue
  • Start date Start date Apr 29, 2006

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
Apr 29, 2006
#1
  • Apr 29, 2006
  • #1
Well, I did a little search and didn't quite find what I was looking for. When I start my car I can hear the pump prime and it fires right up. Now, It primes but it doesn't start right away and I have to let it go and let it prime again then it will fire up. Sound like a fuel pump to anyone else. I am thinking it is getting weak and it needs to be replaced. I was also looking for options into a new pump. I have a 351w that I plan on putting in down the road and I was think of getting a 255. Is that too much? should I just go with a 190? I know the return line will take what I don't use back but if I don't need it I won't get it. thanks in advance
 
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xpeteyjtx

New Member
Dec 29, 2005
108
0
0
Taunton, MA
Apr 29, 2006
#2
  • Apr 29, 2006
  • #2
My car did the same thing. I pulled the codes and found that the BAP was not working. I replaced that and it starts better. So pull the codes first, it might be something simple.
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
Apr 29, 2006
#3
  • Apr 29, 2006
  • #3
xpeteyjtx said:
My car did the same thing. I pulled the codes and found that the BAP was not working. I replaced that and it starts better. So pull the codes first, it might be something simple.
Click to expand...
How would I check codes using the paper clip method? I have never done it before. I tried searching jrichter's post but with over 1000 posts it is kinda hard to find what I am looking for.
 

willys1

Active Member
Dec 2, 2003
1,004
1
36
New Jersey
Apr 29, 2006
#4
  • Apr 29, 2006
  • #4
Fuel filter
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
Apr 29, 2006
#5
  • Apr 29, 2006
  • #5
I figured it out. I am used to checking codes with a testlight but I found that I could just use the CEL for it. Thanks and I just replaced the fuel filter not to long ago but thanks for the suggestion
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Apr 30, 2006
#6
  • Apr 30, 2006
  • #6
FWIW, if your '88 was originally SD, unless someone did the rewire, your CEL shouldnt work. that leaves using a code reader, test light or analog VOM.

If plans are up in the air for future mods, I would do the 255 LPH. Any increase in pressure should be negligable, as well as fuel heating concerns.

Good luck.
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
Apr 30, 2006
#7
  • Apr 30, 2006
  • #7
thanks, I forgot to mention that it is an 88 with an 89 motor plus computer and wiring for the maf.
 
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xpeteyjtx

New Member
Dec 29, 2005
108
0
0
Taunton, MA
Apr 30, 2006
#8
  • Apr 30, 2006
  • #8
Also, when was your last tune up? Did you gap your plugs yourself? If not, check that.
 
J

jef0509

Founding Member
Oct 28, 2001
83
0
0
New Jersey
May 1, 2006
#9
  • May 1, 2006
  • #9
Check the fuel filter first.

My fuel pump has whined for the past 3 years. I still have the new pump sitting in my garage waiting for this one to go, but the sucker is still kickin.
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
May 3, 2006
#10
  • May 3, 2006
  • #10
I recently did a tune up and it ran great. Just recently started doing this. I am going to run the line out to the canister like it is suppose to be then go from there. Shouldn't be hurting it though as the vacuum line on the intake is plugged.
 
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