1996 Chevrolet Blazer fuel pressure

Tiny
TOM1984
  • MEMBER
  • 1996 CHEVROLET BLAZER
  • 178,000 MILES
Okay so my car started running funny and lossing power on the freeway a few months ago. So I finally tested the fuel pressure and it was kinda low and would lose pressure slowly so I bought a new fuel pump. When going to replace the fuel pump I noticed the fuel line was leaking on the inlet side of the fuel filter. So I removed it and put it back in but still leaks. So I dropped the tank and replaced the fuel pump put the tank back in and now it wont start and I have zero fuel pressure I can hear the fuel pump turn on but stll no pressure and im totally confused and frustrated any help would b great
Sunday, November 3rd, 2013 AT 3:47 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Did you replace the fuel filter? I hate to say it, but if you hear the pump running and are getting NO fuel pressure, you may have gotten a bad pump. You may need to remove it and test it.

Let me know.
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Sunday, November 3rd, 2013 AT 6:32 PM
Tiny
TOM1984
  • MEMBER
  • 11 POSTS
I did get a new fuel filter and when I disconnected it and turned the key on I had fuel pouring out of the fuel line that goes into thhe filter
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Sunday, November 3rd, 2013 AT 7:06 PM
Tiny
TOM1984
  • MEMBER
  • 11 POSTS
Almost seems like its working but not to its full potential
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Sunday, November 3rd, 2013 AT 7:08 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
That is the first thing I would check. See if the fuel pump is producing pressure within the manufacturer's specs.
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Monday, November 4th, 2013 AT 5:02 AM
Tiny
TOM1984
  • MEMBER
  • 11 POSTS
Could it possibly b that I dont have enough fuel in the pump since I put it in dry with very little gas in the tank. I mean when I dissconnected the fuel filter and turned on the key fuel came out of the line but when I check the valve I got 0psi
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Monday, November 4th, 2013 AT 8:12 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
The fuel should have shot out of the filter. And yes, if the fuel level is too low, that could be an issue.
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Monday, November 4th, 2013 AT 8:31 AM
Tiny
MAXIMILIAM
  • ADMIN
  • 436 POSTS
Okay I took the fuel pump back out and the o ring was pushed into the tank so my pump wasn't sealed but if I put the o ring in place first the pump will not sit in it right and there is a gap i've used all kinds of different lube and nothing works any ideas

Tom1984
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Sunday, November 10th, 2013 AT 6:43 AM

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