fuel pump question - MustangForums.com


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.

Reply
 
 
 
Thread Tools Search this Thread
Old 09-18-2007, 09:38 PM   #1  
jrt1990
3rd Gear Member
Thread Starter
 
Join Date: May 2006
Location: Wisconsin
Posts: 718
Default fuel pump question

Ok I needed to find out what was going on with my fuel pump so I went out and spent $20 on a voltmeter tester. I'm sure a lot of you have seen the connection that goes to the fuel pump above the gas tankwhich is a smallcircular plug consisting of four prongs that plug into the same size socket plug. So I tested two of the plugs opposite from eachotherforvoltage and they gave a steady reading of around12 volts.

Shouldn't I be able to test somewhere for some kind of voltage jump as the car tries to turn the fuel pump on or am I supposed to get a steady reading like that?
jrt1990 is offline   Reply With Quote
Old 09-18-2007, 09:48 PM   #2  
thunderjet429
2nd Gear Member
 
thunderjet429's Avatar
 
Join Date: Mar 2007
Location: ohio
Posts: 424
Default RE: fuel pump question

you do know that there should only be power at the pump for a few seconds with the key in the run position right??
thunderjet429 is offline   Reply With Quote
Old 09-18-2007, 09:52 PM   #3  
jrt1990
3rd Gear Member
Thread Starter
 
Join Date: May 2006
Location: Wisconsin
Posts: 718
Default RE: fuel pump question

Yes I knew that lol thats what I was wondering about....mines stays constant.
jrt1990 is offline   Reply With Quote
Old 09-18-2007, 10:42 PM   #4  
Maxwelhse
4th Gear Member
 
Join Date: Jan 2007
Location:
Posts: 1,108
Default RE: fuel pump question

Sounds like your fuel pump relay is stuck... I believe its under your driver's seat and you can test it with the same volt meter you just bought. Just set it to Ohms and check the continuity of the circuit.
Maxwelhse is offline   Reply With Quote
Old 10-03-2007, 01:17 PM   #5  
jrt1990
3rd Gear Member
Thread Starter
 
Join Date: May 2006
Location: Wisconsin
Posts: 718
Default RE: fuel pump question

Quote:
ORIGINAL: Maxwelhse

Sounds like your fuel pump relay is stuck... I believe its under your driver's seat and you can test it with the same volt meter you just bought. Just set it to Ohms and check the continuity of the circuit.
How exactly do I get it unstuck?
jrt1990 is offline   Reply With Quote
Old 10-07-2007, 07:59 PM   #6  
jrt1990
3rd Gear Member
Thread Starter
 
Join Date: May 2006
Location: Wisconsin
Posts: 718
Default RE: fuel pump question

?
jrt1990 is offline   Reply With Quote
Old 10-07-2007, 08:08 PM   #7  
fordboyyfm
2nd Gear Member
 
Join Date: Jun 2006
Location:
Posts: 244
Default RE: fuel pump question

replace it
fordboyyfm is offline   Reply With Quote
Old 10-13-2007, 04:15 AM   #8  
jrt1990
3rd Gear Member
Thread Starter
 
Join Date: May 2006
Location: Wisconsin
Posts: 718
Default RE: fuel pump question

You guys all think I should just replace it and see if that works?
jrt1990 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Wheel Question! (New member, hi folks) Tivo304 New Member Area 5 05-30-2018 04:58 PM
need a water pump step by step guide needhelpplease 2005-2014 Mustangs 7 09-04-2015 09:59 AM
HELP.. Should I buy this fox? raleigh05GTO New Member Area 5 09-04-2015 07:09 AM
5.0 wont start condition 5.0 kevo 5.0L (1979-1995) Mustang 6 09-03-2015 06:24 PM
Hydro dipped carbon fiber Fuel Door SYNY5TER Parts For Sale 0 09-02-2015 01:35 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising
Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 05:51 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.