Question about 1994 GMC Sonoma

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Why wont my 94 gmc sonoma start if i put a new pump and filter on it and there is fuel pressure to the injecters also the fuel pump does turn on and stop can some one pls help me

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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dennymulford
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SOURCE: 1998 GMC Sierra- runs rough then stalls when

had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!

Posted on Jun 06, 2009

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  • 4 Answers

SOURCE: 94 gmc jimmy turns over starts for a second and

if it has a chip n the keyyour key is bad go to local chevy dealership with vin num and they will cut new key. if it doesnt have chip you will need to bypass theft deterrent system by installing a remote start. or carry it to dealership to have it programmed

Posted on Aug 08, 2009

  • 5 Answers

SOURCE: no fuel pressure on 94 gmc sonoma s10. replaced

Try changing the fuel lines, if they are cloged from debris that could be the cause.

Posted on Nov 07, 2009

wireguy212
  • 1627 Answers

SOURCE: my 1995 gmc sonoma 4.3

When the fuel pump was replaced ,did the pressure and return lines get put back in the right tubes?What do you mean by a new "injector spider" system,I've never heard the term.Have you checked for bent fuel lines?Where are you doing your pressure tests from?A little more info would be most helpful,thanks.

Posted on Mar 21, 2010

  • 3741 Answers

SOURCE: my 1995 gmc sonoma 4.3

check the fuel pressure regulator. in the front of the engine
it connect to the fuel lines .

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure.
  3. Remove the upper manifold assembly.
    NOTE If the fuel pressure regulator is to be reinstalled, inspect the filter screen (if equipped) for contamination. If the filter screen is contaminated, replace the regulator.
  4. Disassemble the fuel pressure regulator snap ring retainer.
  5. Disassemble the regulator assembly and the O-rings.
  6. Discard the O-rings.
To install:
  1. Lubricate the new O-rings with clean engine oil.
  2. Install the backup O-ring, the large O-ring, the filter and the small O-ring.
  3. Assemble the regulator with the vacuum tube pointing down into the snap ring retainer.
  4. Install the upper manifold assembly.
  5. Connect the negative battery cable.
check the regulator and replace if its faulty. This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

Posted on Mar 21, 2010

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Try changing the fuel lines, if they are cloged from debris that could be the cause.

Nov 07, 2009 | 1994 GMC Sonoma

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When was the last time the fuel filter was chg.? If thats not an issue best to get a fuel pressure test.

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