Question about 1994 Chevrolet S-10 Blazer

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Wont hold fuel pressure

Have replaced pump & filter spider and dist.

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  • 14 Answers

Probably either a bad fuel pressure regulator, or leaking fuel injector

Posted on Apr 18, 2013

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Posted on Jan 02, 2017

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  • 11 Answers

SOURCE: Sometimes wont start. I know

try the pressure regulator, located under the plenium, on the spider injection

Posted on Aug 14, 2008

  • 47 Answers

SOURCE: starts then quits

Was there fuel pressure before you changed everything? It could also be the pressure regulator sticking or bad. When you crank it over and let off the key you should hear the fuel pump run for a couple seconds and then shut off. If it is doing that then I would be looking to see if you have likes hooked up wrong at the back of the engine or try replacing the pressure regulator.

Posted on Dec 23, 2008

  • 36 Answers

SOURCE: starts then quits

Try the ignition control module located under the distributor cap $30 - $60. This is one of two parts on this truck that will cause it to not run or shut down after running for only a short time. The other is the fuel pump I think it is safe to rule that out as your problem

Posted on Jan 08, 2009

  • 12 Answers

SOURCE: Fuel pump relay

Fuel pump in back in the gas tank.

Posted on Jan 30, 2009

  • 136 Answers

SOURCE: 98 silverado p0300 miltiple misfire

Do you have any other codes along with the 0300 code? If so, it could pin point the problem

Posted on Mar 24, 2011

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Related Questions:

1 Answer

What should i look at first. i have 57 pounds offuel pressure but it wont start.have replaced fuel pump,filter.someone said to check the spider first .any help?


The spider is the injector system. They are not cheap and they are a pain to change. Have to take the intake manifold apart.

Jun 13, 2015 | 2000 GMC Jimmy

1 Answer

My 97 grand cherokee cranks but wont start any ideas


Check fuel pressure. If ok then go to ignition. If low fuel pressure, then its either:
  • Fuel filter
  • Fuel pump relay
  • Fuel pump
Ignition:

  1. Coil
  2. Ignition module
  3. dist. cap and rotor button if equipped. (give a good tuneup)
90% sure its fuel related

Dec 09, 2013 | 1997 Jeep Grand Cherokee

1 Answer

Will not continue running


You'll have to figure out if it is a fuel or ignition problem to proceed.
Is the check engine light on ? Have you checked for trouble codes ?
It could be a relay, the ignition module, coil, fuel pump blockage, or a list of other things. Is the oil pressure light on ?
If this is a vortec engine, it requires 60psi or more of fuel pressure to run. Have you checked the fuel pressure and is it enough ?

Jul 06, 2012 | Chevrolet Astro Cars & Trucks

1 Answer

96 chevrolet blazer 4.3 when truck sits over night it cranks over for 3-6 seconds before starting. will start a little quicker if gas pedal is slightly pressed?


There are several common fixes for this problem. Fuel spider is one, fuel pressure regulator is another. However, the most common and likely is your fuel pump module assembly. The fuel pump has to be able to hold pressure from the fuel tank all the way to the regulator. It works just like a foot valve on a well. When it goes bad it let's the fuel in the lines & fuel filter bleed the fuel back to the tank when not in use.when you try to start it after it sits, the fuel has to flow all the way back to the engine. Although the fuel pump is the most expensive of these items, more often than not, that will fix it. Fuel filter should also be checked and replaced if installing a new pump.

Jan 07, 2011 | 1996 Chevrolet Blazer

1 Answer

I have a 95 s10 4.3 which starts nd runs fines


spider injection is a common problem with these vehicles, is it consuming gas more than usual, is the oil smelling like gas? The spider is located under the upper intake plenem. There is also a fuel pressure regulator connected to the spider assembly that may be faulty.

Dec 31, 2009 | 2000 Chevrolet S-10

2 Answers

Replaced fuel pump. turns over strong but won't


check wireing harnes to fuel pump that yr and model were prone to going bad and causeing fuel pump to kick off and on at wrong time

Nov 16, 2009 | 1996 Chevrolet C1500

3 Answers

94 jimmy turns but wont start, I replaced the fuel pump and


see if your getting fuel to the top, find the fuel rail on the top of the motor you will see a bleeder valve push in the the little serator valve and see if fuel comes out. if not the pressure regulator could be bad. if none there take the filter loose on the pump side and see if fuel comes out there. i believe this has the spider type injector setup on it and this could be bad.

Aug 26, 2009 | 1994 GMC Jimmy

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