Posted on Feb 01, 2012

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What is the fuel pressure for a 03 Tahoe 5.3 liter z motor with flex fuel.

1 Answer

raj somaiya

Chevrolet Master 5,370 Answers
Posted on Mar 02, 2012

raj somaiya

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micah lenfest

540 Answers
Posted on Dec 07, 2009

SOURCE: my tahoe 2002 has a flex fuel sensor indicating

no usually a hard start in the morning is a sign of a fuel pump draining back after sitting, a sign of fuel pump going out usually..

Anonymous

140 Answers
Posted on Jan 03, 2009

SOURCE: 1998 Chevy tahoe Hard to start when cold

Hello, yes the check valve is in the fuel pump assembly. The check valve is leaking and the pump will burn out soon. Unfortunately the aftermarket fuel pumps can be very unreliable. A good portion of problems we see on this site are from people who replace the pump sometimes twice and it still doesn't work.

Anonymous

74 Answers
Posted on Feb 17, 2009

SOURCE: 1998 Chevy tahoe Hard to start when cold

replace your MAP sensor(manifold absolute pressure) the map sensor is the computer for your fuel pressure regulator telling how much pressure. Unless your tahoe runs like **** going up hill than it inevitably your fuel pump

Anonymous

103 Answers
Posted on Sep 01, 2009

SOURCE: ase describe your where is the fuel pressure

If you look at the top of the upper intake manifold plenum with the air intake duct work off you will see 2 shiny fuel tubes that feed into the fuel meter body. The fuel meter body also has an electrical connector right in the middle of it. The pressure regulator is mounted on the side of that body. You'll have to remove the upper intake manifold manifold to replace it. Before you do that, be sure to bleed the pressure off the fuel system.

Anonymous

58 Answers
Posted on Feb 25, 2010

SOURCE: 2003 Tahoe, 5.3 liter vortec flex fuel. Engine

this is a comon problem on chevy 00-06 models a computer ground ,it seems ok at sight but inside it's just holding a few wires ,get under the car on the driver side passenger there you should find a two ground wire goin to the block a big, and a small ,the small one gets coroded try to fix it and let me know how it goes ok.

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I have a 2004 flex fuel tahoe 5.3. P171 and p174. Codes on. Have replaced fuel pump , pressure reg., plugs and fuel filter. Hard to start but runs fine for awhile then starts acting up.

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Nov 29, 2015 • Cars & Trucks

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03 Tahoe Z71 Flex Fuel won't start and run. Engine turns over, fires, but won't start. I can hear the fuel pump run but it is not a steady sound like I would normally hear. I am getting a P0

It wouldn't hurt to check fuel pressure with a fuel pressure gauge. you should see somewhere around 48 - 55 psi. the test port is on the fuel rail about in the middle of the rail and on the drivers side.

If the fuel fuel pressure is low it wouldn't hurt to make sure there is power to the fuel pump before condemning it. Power is supplied to the pump by the larger of the two grey wires.

The fuel pump is located in the fuel tank and the fuel tank will need to be dropped from the vehicle in order to service the fuel pump.

If you decide to replace the fuel pump get an a/c delco or a delphi pump. These are the best two option for your vehicle. Do not get an airtex brand. They are not reliable pumps although they are cheap.

Let me know if you have any questions and thank you for using fixya.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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Feb 25, 2012 • 2003 Chevrolet Tahoe

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My 03 chevy tahoe has a code dhat is po179 is not pas inspection

Sounds like the fuel composition sensor is bad causing it to run rich .. Is your Tahoe a flex fuel ?

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Apr 08, 2011 • 2002 Chevrolet Tahoe

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What is the fuel pressure spec for a 2004 tahoe with 5.3 flex fuel. I have low power. Changed fuel filter, air filter and oil and still no power. Checked fuel pressure and had about 43 psi. not sure what...

I would change the fuel pressure regulator first, if no change in pressure the fuel pump is on the way out.I have a 01 silverado 4.8 and my fuel pressure is between 55and60 psi.

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Feb 22, 2010 • 2003 Chevrolet Tahoe

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Have someone listen at the gas cap for the fuel pump humm when you first start the motor and keep listening if it stops hummimg. The piump may wok when there is low pressure in line and stop after build up of pressure.

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Dec 08, 2009 • 1999 Chevrolet Tahoe

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Jan 03, 2009 • 1998 Chevrolet Tahoe

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99tahoe

check your fuel pump pressure 90-00 has fuel pump problems check your fuel pressure and see if its up to spec's on that year, Hope that helps you out...

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Jun 14, 2008 • 1999 Chevrolet Tahoe

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I have a 2004 flex fuel tahoe 5.3. P171 and p174. Codes on. Have replaced fuel pump , pressure reg., plugs and fuel filter. Hard to start but runs fine for awhile then starts acting up.

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What is the fuel pressure for a 03 Tahoe 5.3 liter z motor with flex fuel.

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raj somaiya

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micah lenfest

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Related Questions:

I have a 2004 flex fuel tahoe 5.3. P171 and p174. Codes on. Have replaced fuel pump , pressure reg., plugs and fuel filter. Hard to start but runs fine for awhile then starts acting up.

2002 Chevy Tahoe + P0171/P0174 - Chevrolet Forum - Chevy ...

SilveradoSierra.com • P 171, P 174 error code : Vortec 5300 ...

03 Tahoe Z71 Flex Fuel won't start and run. Engine turns over, fires, but won't start. I can hear the fuel pump run but it is not a steady sound like I would normally hear. I am getting a P0

My 03 chevy tahoe has a code dhat is po179 is not pas inspection

What is the fuel pressure spec for a 2004 tahoe with 5.3 flex fuel. I have low power. Changed fuel filter, air filter and oil and still no power. Checked fuel pressure and had about 43 psi. not sure what...

03 Tahoe, idles down, shuts off, gas pedal ineffective. - Replaced fuel filter, - when cool, runs for about 1 min, then idles down and shuts off. tahoe has pink fluid leak (probably coolant, heard rumor if...

1999 Tahoe 5.1 liter engine 135,000 miles)- I have replaced the fuel pump (in tank), cleaned tank and replaced the fuel filter about 5 months ago. Started this past few days is hard to start - (some times...

2003 Tahoe, 5.3 liter vortec flex fuel. Engine replaced at 60k miles due to low end knock (typical late model GM). Scanner shows mutiple misfires on all 8 cylinders and erratic timing. Rough idle....

1998 Chevy tahoe Hard to start when cold

1998 Chevy tahoe Hard to start when cold

99tahoe

Not finding what you are looking for?

2003 Tahoe

I have a 2004 flex fuel tahoe 5.3. P171 and p174. Codes on. Have replaced fuel pump , pressure reg., plugs and fuel filter. Hard to start but runs fine for awhile then starts acting up.

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john h

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What is the fuel pressure for a 03 Tahoe 5.3 liter z motor with flex fuel.

1 Answer

5 Related Answers

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Related Questions:

I have a 2004 flex fuel tahoe 5.3. P171 and p174. Codes on. Have replaced fuel pump , pressure reg., plugs and fuel filter. Hard to start but runs fine for awhile then starts acting up.

03 Tahoe Z71 Flex Fuel won't start and run. Engine turns over, fires, but won't start. I can hear the fuel pump run but it is not a steady sound like I would normally hear. I am getting a P0

My 03 chevy tahoe has a code dhat is po179 is not pas inspection

What is the fuel pressure spec for a 2004 tahoe with 5.3 flex fuel. I have low power. Changed fuel filter, air filter and oil and still no power. Checked fuel pressure and had about 43 psi. not sure what...

03 Tahoe, idles down, shuts off, gas pedal ineffective. - Replaced fuel filter, - when cool, runs for about 1 min, then idles down and shuts off. tahoe has pink fluid leak (probably coolant, heard rumor if...

1999 Tahoe 5.1 liter engine 135,000 miles)- I have replaced the fuel pump (in tank), cleaned tank and replaced the fuel filter about 5 months ago. Started this past few days is hard to start - (some times...

2003 Tahoe, 5.3 liter vortec flex fuel. Engine replaced at 60k miles due to low end knock (typical late model GM). Scanner shows mutiple misfires on all 8 cylinders and erratic timing. Rough idle....

1998 Chevy tahoe Hard to start when cold

1998 Chevy tahoe Hard to start when cold

99tahoe

Not finding what you are looking for?

2003 Tahoe

I have a 2004 flex fuel tahoe 5.3. P171 and p174. Codes on. Have replaced fuel pump , pressure reg., plugs and fuel filter. Hard to start but runs fine for awhile then starts acting up.

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