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No fuel pressure pump isn't kicking on

Tiny
TAPOUT518
  • MEMBER
  • 1998 CHEVROLET S-10
  • 118,000 MILES
Truck just quit on me driving down the road gas tank is full. Checked all fuses and relays are good but fuel pump is bad. I replaced fuel pump and it still won't come on replaced the fuses and relays with new ones still nothing. Not sure what to check next.
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Monday, September 26th, 2011 AT 6:02 PM

7 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Did you check at the fuel pump module for for power and ground to the fuel pump wires while cranking to start the engine.
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Monday, September 26th, 2011 AT 6:28 PM
Tiny
TAPOUT518
  • MEMBER
  • 4 POSTS
No I haven't and not sure how to check that or what the result should be if I did
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Monday, September 26th, 2011 AT 6:56 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
So you checked the actual fuel pressure and it reads 0psi?Thats how you know the fuel pump isnt working?Lets start with this go to the fuel pump fuse and see if there is power to both sides of the fuse while you are cranking the engine. Let me know what you find.
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Monday, September 26th, 2011 AT 7:05 PM
Tiny
TAPOUT518
  • MEMBER
  • 4 POSTS
Yes I checked the pressure and got nothing. I also poured gas down throttle body and truck ran fine for 1to2min.I will check the fuse when I get someone hear to help me because the only one I see is under the hood by the fuelpump relay
and I didn't find on in dashboard cluster
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Monday, September 26th, 2011 AT 7:22 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
What is the 8th digit of your vin?Let me know so I can get you more info.
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Monday, September 26th, 2011 AT 10:19 PM
Tiny
TAPOUT518
  • MEMBER
  • 4 POSTS
The 8th is 4. I still cannot figure it
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Monday, September 26th, 2011 AT 11:48 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
The ecm B fuse should have power all the time then go to the connector at the fuel pump module unplug it. Then terminal C black wire should have 2ohms or less to ground. Then terminal B gray wire should have battery voltage while cranking. Also inspect the terminal ends make sure there not open. Let me know what you find.
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Tuesday, September 27th, 2011 AT 12:12 AM

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