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Need step by step to determine if fuel pump bad

  • Thread starter Thread starter trailblazr81
  • Start date Start date Jan 25, 2011

trailblazr81

Member
May 17, 2003
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Hollister, Cali
Jan 25, 2011
#1
  • Jan 25, 2011
  • #1
Is there a write up, prefer with pics, of the step by step process of determining if its my fuel pump thats not working. I get it to crank but wont start. I know to check fuse, fuel at schrader valve. Then how do I check the IFS in the trunk? Which wires am I checking at the IFS, and CCRM?
 

trombonedemon

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Jun 25, 2009
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Jan 25, 2011
#2
  • Jan 25, 2011
  • #2
Have you tried starter fluid? Listen for the pump to prime in the back of the car.
 

trailblazr81

Member
May 17, 2003
571
0
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Hollister, Cali
Jan 25, 2011
#3
  • Jan 25, 2011
  • #3
I dont hear the pump, and theres nothing coming out of schrader valve on fuel rail.
 
M

mrjucs

New Member
Jan 15, 2011
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Jan 25, 2011
#4
  • Jan 25, 2011
  • #4
trailblazr81 said:
I dont hear the pump, and theres nothing coming out of schrader valve on fuel rail.
Click to expand...

to best determine if the pump is turning on would be to have a friend stand with his/her ear at the fuel cap while u turn the car to ACC...u should here the pump kick on. If not, its definitely the pump.
 

trailblazr81

Member
May 17, 2003
571
0
16
Hollister, Cali
Jan 25, 2011
#5
  • Jan 25, 2011
  • #5
If this makes sense, on the Fuel Pump Driver Module I only see power on #7 light blue/orange and #10 Brown/Pink.
 
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