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  • SN95 4.6L Mustang Tech

Fuel Pump Test?

  • Thread starter Thread starter Jacob_Royer
  • Start date Start date Mar 23, 2010

Jacob_Royer

Member
Nov 24, 2007
142
1
19
Mar 23, 2010
#1
  • Mar 23, 2010
  • #1
I filled my car up today and afterwords it wouldnt start! i noticed when i started it earlier it cranked for longer than usual. Anyway i have no fuel at the rail as i have pressed down the shrader valve with the key on and didnt get any gas. No codes are showing (i have an OBDII reader) and i cant here the pump in the tank. banged on the tank and couldnt get it to kick the pump on. Anyway im wondering how to test the pump? I noticed when i turn the key on i here some clicking from a box in the passenger side fenderwell no idea what it is or why i here clicks? just had a fender put on that side so i wonder if they could have messed somthing up there? but i do know it has cranked for longer than it should for quite some time! also it has 230k miles or so on the original pump! Like i said i need to know how to test it and where the relay is located (i have no owners manual and box isnt labeled!) Also any tricks to dropping tank? its unfortunately full of gas!! do i have to drop the exhaust? also parts store claims there are two pumps one with a brass inlet and one with plastic? which one should it be? (96 gt) sorry for all the questions i just had a horrible day and finaly got the car back home (80 *@(&# miles from home and on my way to night school when it screwed up!)
Thanks for any help it would be much appreceated!!
 
B

beerman1378

New Member
Aug 7, 2006
28
0
0
Mar 23, 2010
#2
  • Mar 23, 2010
  • #2
The clicking under the pass side firewall would be ur Constant Control Module. This covers various electrical and ur fuel pump. Mine just went and I am putting a new on in tomorrow morning. Im by far no expert on this subject but I figured Id throw my .02 in
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Mar 23, 2010
#3
  • Mar 23, 2010
  • #3
The CCRM is located in the passenger's fender well. The clicking sound is most likely coming from the CCRM.

Start first by checking the battery. All ALL terminals clean and tight? Is the battery fully charged?

Next, check all of the fuses. There are two fuse panels.

If recent work on the passenger fender, IMO, a good possibility that has damaged the CCRM. However, just to be sure, check all of the fuses.
 

Jacob_Royer

Member
Nov 24, 2007
142
1
19
Mar 24, 2010
#4
  • Mar 24, 2010
  • #4
It turned out to be the pump i probed the hot running to it and it had power, $108 for a pump $10 for a strainer (orielly) and im back on the road! I now have a handy stainless removable access panel under my trunk carpet so fuel pump swaps are easy! why the hell didnt for do that in the first place? oh thats right they wanted us to have them fix it!
 
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