Question about 1993 Chevrolet K1500

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Is running out of fuel at high rpms but pressure is 11 lbs.. Is 93 silverado 305 throtle body

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Fuel pressure is way to low.. it should be in the 40-50 lb range.

Posted on Jul 29, 2010

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1 Answer

Why am I having a fuel problem on my 93 jeep wrangler


you could have a plugged fuel filter or the fuel pump is not working properly. check the fuel pressure with a gauge it should be around 16 lbs pressure if its a throttle body and about 35 lbs if its multi-port injection. you don`t say what type of problem your having with the fuel.

Aug 08, 2014 | Cars & Trucks

1 Answer

2002 chevy silverado got spark and fuel through filter and can put fuel in the throtle body it will start for a sec but wont start on its own


Sound like you have low fuel pressure. You will need a fuel pressure gauge to accurately measure fuel pressure. You should have 48 to 64 psi.

Apr 07, 2013 | 2002 Chevrolet Silverado

1 Answer

Need to replace intake manifold how do you do this


Bonneville, LeSabre, Park Avenue 2000-2005 Intake Manifold - Removal & Installation

3.8L Engine
VIN 1 Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Relieve the fuel system pressure.
  3. Drain the cooling system.
  4. Remove or disconnect the following:
    Negative battery cable Supercharger Thermostat housing Exhaust Gas Recirculation (EGR) tube at the intake manifold Engine Control Temperature (ECT) sensor Intake manifold
To install:
  1. Install or connect the following:
    Intake manifold with new gaskets. Torque the bolts, working from the center out, to 11 ft. lbs. (15 Nm). ECT sensor connector EGR tube to the intake manifold Thermostat housing Supercharger Negative battery cable
  2. Refill and bleed the cooling system.
  3. Run the engine and check for leaks and proper engine operation.

VIN K Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Disconnect the negative battery cable.
  3. Drain the cooling system.
  4. Relieve the fuel system pressure.
  5. Remove or disconnect the following:
    Fuel injector sight shield Air inlet duct Spark plug wires from the right side Manifold Absolute Pressure (MAP) sensor Vacuum lines from the intake manifold Fuel lines Fuel injector electrical connectors Fuel regulator vacuum line Fuel rail from the intake manifold Exhaust Gas Recirculation (EGR) heat shield Throttle cable bracket from the cylinder head mounting bracket and the throttle body cables Throttle body support bracket Upper intake plenum and gasket Thermostat housing Electrical connector from the Engine Coolant Temperature (ECT) sensor Drive belt tensioner assembly EGR valve outlet pipe Lower intake manifold

    a5adffa.jpg
    Fig. Exploded view of the intake manifold and related components-3.8L (VIN K) engine
To install:


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Fig. Upper intake manifold torque sequence-3.8L (VIN K) engine


4950e4f.jpg
Fig. Lower intake manifold torque sequence-3.8L (VIN K) engine
  1. Install or connect the following:
    Intake manifold using new manifold gaskets. Torque the bolts in sequence to 11 ft. lbs. (15 Nm); then, re-torque to 11 ft. lbs. (15 Nm). EGR valve outlet pipe Drive belt tensioner assembly. Torque the tensioner bolts to 37 ft. lbs. (50 Nm). Electrical connector to the ECT sensor Thermostat housing Upper intake plenum. Torque the intake plenum bolts to 88 inch. lbs. (10 Nm). Throttle body support bracket Throttle cable bracket to the cylinder head mounting bracket and the cables to the throttle body lever EGR heat shield Fuel rail. Torque the fuel rail bolts to 88 inch. lbs. (10 Nm). Fuel lines Fuel regulator vacuum line Fuel injector electrical connectors Vacuum lines to the intake manifold MAP sensor Spark plug wires Fuel injector sight shield and air inlet duct Negative battery cable
  2. Refill and bleed the cooling system.
  3. Run the engine and check for leaks and proper engine operation.

Hope this help (remember rated this).

May 17, 2010 | 2001 Pontiac Bonneville

3 Answers

Our truck willn not start


Maybe your fuel pressure regulator valve!

Jan 16, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

I have a Silverado 1500, 4.3 with 132,000 miles. After start, it runs fine, no signs of malfuntion. However it takes extended cranking to start. The fuel pump & filter was replaced 10,000 miles ago....


You need 3 things.
Compression
Good hot blue spark to all plugs.
Good gasoline and proper fuel pressure. 63-64 lbs.
If you have all 3 then move on to injector pulse to all injectors.

You may be weak on fuel pressure . even a couple of lbs low on a cold start will cause a no start. Double check cold start cranking fuel pressure. If under 63-62 lbs you have problems. One test is to give it a squirt of carb cleaner not starting fluid. If it starts then you have a fuel pressure problem. Run the full fuel pressure test and post back pressures. Here is the guide lines on testing.
Hard to start cold.
Check cold start fuel pressure.
Check engine running fuel pressure.
Check engine running on the road fuel pressure.
Then shut it off and watch for fast leak down.
Pinch off at rubber part or block off return line and check full pressure.
Later V6 and V8 gm engines should have 60-66 fuel pressure.
Cold start should be 64-65 lbs of pressure.
If you do not have full fuel pressure on a cold start the injectors will not squirt fuel.
Do not leave home without it.
Engine running should be 60-66 lbs pressure depending on engine load.
Full pressure with return pinched off should be 75-85 or more.
And if it has a fast leak down after shut off you have a leak.

Also you mentioned that you replaced the fuel pump, it's common for the $15.00 wire harness from the fuel pump to the frame will break and there is a bad connection till the wires heat up. You can try this trick, turn your ignition on for 30 seconds "engine not running" and then turn it off for for 5 seconds and then try to start. This will energize the fuel line if the fuel line check valve is bad which is a part of the fuel pump and will heat up the wire harness which will make a better connection and see if the engine starts easier. Regardless, inspect the wire harness for corrosion and the ground is good. Good luck and keep me posted.

Dec 15, 2009 | 2000 Chevrolet Silverado 1500

1 Answer

2000 vw beet bogs out after few seconds


hallo
remove, clean throtle body with throtle body cleaner or nitro.
Marko

Dec 05, 2009 | 2000 Volkswagen Beetle

1 Answer

I have a 93 trooper with 3.2l soc. it looses power on the 4th and 5th gear.Some times it will pop through the throtle body. i have replaced all 3 coils and fuel pump. spark plugs, wires, fuel filter,...


Attain a vacuum gauge and check the vacuum pressure at the intake manifold, it should reading steady needle at 18 lbs. of vacuum if not there is a vacuum leaking, if it reads 18 and the needle is shaking it may be a valve issue, most vacuum gauges come with a chart that shows the diagnostic procedures for use with vacuum gauges they are an invaluable tool for mechanical diagnosis and they can also tell you if your timing is off.

Nov 17, 2009 | 1993 Isuzu Rodeo

3 Answers

1992 Chevy Silverado idles rough why?


Check your MAP and TP sensors. Your throttle body may be having trouble determining position and is compensating by adjusting RPMs.

Jun 24, 2009 | 1992 Chevrolet K1500

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