Question about 1994 Chevrolet S-10

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1994 s-10 2.2l Filling with fuel

1994 s-10 2.2l....new fuel pump, plugs, wires, and fuel pressure regulator. The truck will start with the engine primed(fuel lines filled by grounding fuel pump). Truck stays running after being started idles poorly ONLY if the Fuel pump is ungrounded. As soon as the pump is grounded the engine hydraulic locks after only a few seconds. PLEASE help......this thing is nickel and dime'n me to death!

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  • ace5n85 May 08, 2009

    how do i fix this problem????

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  • Master
  • 407 Answers

You have one or more injectors dumping very common with the 2.2

Posted on May 08, 2009

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Posted on Jan 02, 2017

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I have a 1987 ford ranger the engine turns over but it wont start


Spark at plugs? Fuel filter? Pressure on injector delivery line? Pressure relief valve? You may be able to measure fuel pressure at the pressure relief valve location. and return line. If you have spark, I'd say it's a fuel supply problem

Dec 21, 2014 | Ford Cars & Trucks

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1997 Buick LaSabre 3.8 engine.


About the only thing that would make all 6 cylinders flood out is the fuel pressure regulator or a computer problem. You say you have checked the regulator, so the next step would be to check the injectors for a short to ground.

Jun 02, 2013 | 1997 Buick LeSabre

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Fuel pressure regulator can it stop your car from starting


fuel lines hook up backwards problem solved...

Dec 31, 2012 | 1990 Chevrolet Corvette

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Toyota 4runner sr5 won't start its getting gas and spark.


Sounds like the problem is beyond your ability to diagnose

Too much fuel could be a leaking fuel injector or fuel pressure
regulator.

Too much gas & a no start isn't really the issue

Did it start & run before you did the wires,I would check your work
& mark the wires with a pen & also have diagram on paper before
you start a job like that. Especially when if you have no reference
material.

You put a mechanical fuel pressure gauge on a running engine
& the apply vacuum with a hand pump to regulator to watch for
pressure change,eg: pump pressure vs: regulator press

Nov 17, 2012 | 1997 Toyota 4Runner

1 Answer

Overreving with no power and excessive gas consumption air filter cleaned map sensor replaced fuel pump and filter


usually caused by busted diaphram in fuel pressure regulator allowing fuel to be drawn thru regulator directly to intake manifold. Pull vacuum line off regulator, plug line with golf tee, start car and watch to see if gas comes out of regulator. If yes, turn off car, replace regulator. The regulator sits near the fuel rail on the top of the engine as shown below. I will paste replacement instructions below from autozone.com in case you need to replace the regulator. Please let me know if you have any questions.
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Removal & Installation

4.2L Engine

  1. Relieve the fuel system pressure.
  2. Remove the air cleaner outlet resonator.
  3. Disconnect the engine wiring harness from the retaining clips at the front of the engine.
  4. Disconnect the fuel pressure regulator vacuum line.
  5. Clean any dirt from the fuel pressure regulator and the surrounding area.
  6. Disconnect the fuel return pipe.
  7. Remove the fuel return pipe retainer.
  8. Remove the fuel pressure regulator retainer.
  9. Remove the fuel pressure regulator.
  10. Inspect the regulator filter screen for contamination. If contaminated, replace the fuel pressure regulator.

To install:
  1. Install the regulator filter.
  2. Install the new O-ring on the fuel pressure regulator.
  3. Lubricate the fuel pressure regulator O-ring with clean engine oil.
  4. Push the fuel pressure regulator into the regulator housing on the fuel rail.
  5. Install the fuel pressure regulator retainer. Tighten the regulator retainer screw to 71 inch lbs. (8 Nm).
  6. Install the fuel return pipe retainer. Tighten the return pipe retainer screw to 71 inch lbs. (8 Nm).
  7. Connect the fuel return pipe.
  8. Connect the fuel pressure regulator vacuum line.
  9. Connect the negative battery cable.
  10. Inspect for leaks:
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect for fuel leaks.

  11. Install the engine wiring harness into the retaining clips at the front of the engine.
  12. Install the air intake resonator.

Dec 08, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Hi, i have a 1993 ford f-150 4.9 the truck starts if runs very rich i have checked fuel pressure checked ok ive check spark getting a strong spark ive check for injector pulse and no problems the truck...


Hi,
I think you are on the right track. With the engine off remove the vacuum hose from the fuel pressure regulator and see if there is fuel in the vacuum hose or fuel is leaking from the fuel pressure regulator vacuum nipple,if so replace the regulator,check to make sure that the engine oil is not contaminated by fuel if so,change the oil and filter. Good Luck!

Sep 17, 2010 | Ford F-150 Cars & Trucks

1 Answer

New fuel pump and still wont start


1 Inspect Battery Battery Discharged or Faulty. 2 Inspect Battery Cable Corroded, Broken, Shorted or Poorly Connected Battery Cable. 3 Inspect Distributor Cap Distributor Cap Cracked or Burned. 3 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 5 Inspect Coil - Ignition Faulty Ignition Coil. 6 Inspect Wireset Worn, Damaged or Faulty Spark Plug Wire(s). 7 Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s). 8 Inspect Starter Starter Motor Faulty. 9 Inspect Fuel Pump Low Fuel Pressure. 10 Inspect Solenoid Switch Faulty Starter Solenoid Switch. 11 Inspect Relay - Fuel Pumpat Faulty Fuel Pump Relay. 12 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator. 13 Inspect Ignition Switch Improperly Connected or Faulty Ignition Switch. 14 Inspect Starter Drive Faulty Starter Drive. 15 Inspect Fuel Injector Dirty or Worn Fuel Injectors. 16 Inspect Fuel Pump Strainer Clogged or Dirty Fuel Pump Strainerat. 17 Inspect Engine Control Computer Incorrect Operating Information Being Delivered and Sent From The EEC. 18 Inspect Fuel Tank Fuel Tank Empty. 19 Inspect Carburetor Carburetor Flooded or Faulty Choke. 20 Inspect Distributor Worn, Loose, or Incorrectly Installed Distributor.

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2 Answers

1995 GMC JIMMY WHILE DRIVING ENGINE DIED I HAD TE FP CHANGED FUEL FILTER NEW COMPUTER NEW PLUGS WIRE D CAP COIL AT THIS TIME NO GAS NO START


CHECK TO SEE IF FUEL PUMP IS CYCLING WHEN YOU TURN KEY ON, SHOULD HEAR BUZZING NOISE FOR 5 TO 10 SECONDS,IF NOT FUEL PUMP IS FAILING.

Feb 02, 2010 | 1995 GMC Jimmy

3 Answers

Engine wont start


if you can hear the fuel pump when turn the key on with out turning the engine, then it could be that your fuel pressure regulator is broken, check your fuel pressur.

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2 Answers

Cranks but no start


Sounds like the carb is dirty. I would check that before spending a lot of money of other things.

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