Question about 2004 Ford F150

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I'm having my injectors cleaned on my '04 f150. The shop suggested that I also service the throttle body at $100. Is this common and a suggested service?

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  • Ford Master
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There are two kinds of injection... throttle body looks like a carburator, and has one or two injectors in it,
Multiport has an injector for each cylinder. A multiport wont have a throttlebody, but both do have other parts, like an idle air control valve, and other items that could be cleaned.
I would recommend adding injector cleaner to the fuel, and spray some carburator cleaner into the intake while running. Just an idea!

Posted on Jul 29, 2010

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Posted on Jan 02, 2017

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How to replace the fuel injector for a 2008 chrysler pt cruiser?


To remove a fuel injector or injectors you must remove the fuel supply rail that sits over them. Here is how you do that for both engine options, Turbo and non Turbo..

Removal & Installation

Except Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release fuel system pressure.
  2. Remove the air cleaner lid, disconnect the inlet air temperature sensor and makeup air hose.
  3. Remove the negative battery cable.
  4. Remove the engine cover or throttle control shield if equipped.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  5. Disconnect fuel supply tube from rail.
  6. Remove the Intake Manifold, refer to the Engine section.
  7. Disconnect electrical connectors from fuel injectors.
  8. Remove bolts holding fuel rail.
  9. Remove the fuel rail and injectors.
  10. Remove the injectors from the fuel rail.
To install:
  1. Install injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  4. Attach electrical connectors to fuel injectors.
  5. Connect fuel supply tube to fuel rail. Refer to Quick Connect Fittings in the Fuel Delivery section
  6. Install Intake Manifold, refer to the Engine section.
  7. Install the engine cover or throttle control shield if equipped.
  8. Install the negative battery cable.
  9. Install the air cleaner lid, connect the inlet air temperature sensor and makeup air hose. Tighten air inlet tube clamps to 20-30 inch lbs. (2-4 Nm).

Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Disconnect the throttle body inlet hose and remove from throttle body.
  4. Disconnect the purge hose from the throttle body.
  5. Unlock and disconnect the electrical connection at the throttle body.
  6. Remove the throttle control shield .
  7. Remove the throttle and speed control cables from the throttle body.
  8. Remove the cables from the throttle body bracket.
  9. Unlock and disconnect the MAP sensor electrical connector.
  10. Remove the vacuum lines from the rear of the intake manifold.
  11. Remove the 5 bolts from the front of the intake manifold.
  12. Remove the 2 bolts from the rear of the intake manifold.
  13. Remove the intake manifold. Cover the lower intake manifold openings.
  14. Drain the Coolant system.
  15. Move the upper radiator hose clamp, so that the hose can be rotated up and out of the way.
  16. Remove the 2 small hoses from the thermostat housing.
  17. Remove the 2 bolts from the thermostat housing and rotate the assembly up and out of the way.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  18. Disconnect the fuel line from the fuel rail.
  19. Unlock and disconnect the electrical connectors from the fuel injectors.
  20. Remove the wiring harness from the fuel rail.
  21. Remove the 2 bolts from the fuel rail.
  22. Remove the fuel rail and injectors from the intake manifold.
To install:
  1. Install the fuel injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place.
  4. Install the 2 bolts to the fuel rail. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  5. Install the wiring harness to the fuel rail.
  6. Connect and lock the electrical connectors to the fuel injectors.
  7. Connect the fuel line to the fuel rail.
  8. Rotate the assembly back into place and install the 2 bolts to the thermostat housing tighten to 110 inch lbs. (12.5 Nm).
  9. Move the upper radiator house clamp back into place.
  10. Install the 2 small hoses to the thermostat housing.
  11. Fill the Coolant system.
  12. Install the intake manifold.
  13. Install the 2 bolts to the rear of the intake manifold tighten to 250 inch lbs. (28 Nm).
  14. Install the 5 bolts to the front of the intake manifold and tighten to 250 inch lbs. (28 Nm).
  15. Install the vacuum lines to the rear of the intake manifold.
  16. Connect and lock the MAP sensor electrical connector.
  17. Install the cables to the throttle body bracket.
  18. Install the throttle and speed control cables to the throttle body.
  19. Install the throttle control shield.
  20. Connect and lock the electrical connections at the throttle body.
  21. Connect the purge hose to the throttle body.
  22. Connect the throttle body inlet hose to the throttle body and tighten clamps to 20-30 inch lbs. (2-4 Nm).
  23. Connect the negative battery cable.
  24. Use the DRB® scan tool ASD Fuel System Test to pressurize the fuel system. Check for leaks.

Mar 02, 2017 | Chrysler Cars & Trucks

1 Answer

How to replace the fuel injector on a 2008 chrysler pt cruiser


Removal & Installation

Except Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release fuel system pressure.
  2. Remove the air cleaner lid, disconnect the inlet air temperature sensor and makeup air hose.
  3. Remove the negative battery cable.
  4. Remove the engine cover or throttle control shield if equipped.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  5. Disconnect fuel supply tube from rail.
  6. Remove the Intake Manifold, refer to the Engine section.
  7. Disconnect electrical connectors from fuel injectors.
  8. Remove bolts holding fuel rail.
  9. Remove the fuel rail and injectors.
  10. Remove the injectors from the fuel rail.
To install:
  1. Install injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  4. Attach electrical connectors to fuel injectors.
  5. Connect fuel supply tube to fuel rail. Refer to Quick Connect Fittings in the Fuel Delivery section
  6. Install Intake Manifold, refer to the Engine section.
  7. Install the engine cover or throttle control shield if equipped.
  8. Install the negative battery cable.
  9. Install the air cleaner lid, connect the inlet air temperature sensor and makeup air hose. Tighten air inlet tube clamps to 20-30 inch lbs. (2-4 Nm).

Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Disconnect the throttle body inlet hose and remove from throttle body.
  4. Disconnect the purge hose from the throttle body.
  5. Unlock and disconnect the electrical connection at the throttle body.
  6. Remove the throttle control shield .
  7. Remove the throttle and speed control cables from the throttle body.
  8. Remove the cables from the throttle body bracket.
  9. Unlock and disconnect the MAP sensor electrical connector.
  10. Remove the vacuum lines from the rear of the intake manifold.
  11. Remove the 5 bolts from the front of the intake manifold.
  12. Remove the 2 bolts from the rear of the intake manifold.
  13. Remove the intake manifold. Cover the lower intake manifold openings.
  14. Drain the Coolant system.
  15. Move the upper radiator hose clamp, so that the hose can be rotated up and out of the way.
  16. Remove the 2 small hoses from the thermostat housing.
  17. Remove the 2 bolts from the thermostat housing and rotate the assembly up and out of the way.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  18. Disconnect the fuel line from the fuel rail.
  19. Unlock and disconnect the electrical connectors from the fuel injectors.
  20. Remove the wiring harness from the fuel rail.
  21. Remove the 2 bolts from the fuel rail.
  22. Remove the fuel rail and injectors from the intake manifold.
To install:
  1. Install the fuel injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place.
  4. Install the 2 bolts to the fuel rail. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  5. Install the wiring harness to the fuel rail.
  6. Connect and lock the electrical connectors to the fuel injectors.
  7. Connect the fuel line to the fuel rail.
  8. Rotate the assembly back into place and install the 2 bolts to the thermostat housing tighten to 110 inch lbs. (12.5 Nm).
  9. Move the upper radiator house clamp back into place.
  10. Install the 2 small hoses to the thermostat housing.
  11. Fill the Coolant system.
  12. Install the intake manifold.
  13. Install the 2 bolts to the rear of the intake manifold tighten to 250 inch lbs. (28 Nm).
  14. Install the 5 bolts to the front of the intake manifold and tighten to 250 inch lbs. (28 Nm).
  15. Install the vacuum lines to the rear of the intake manifold.
  16. Connect and lock the MAP sensor electrical connector.
  17. Install the cables to the throttle body bracket.
  18. Install the throttle and speed control cables to the throttle body.
  19. Install the throttle control shield.
  20. Connect and lock the electrical connections at the throttle body.
  21. Connect the purge hose to the throttle body.
  22. Connect the throttle body inlet hose to the throttle body and tighten clamps to 20-30 inch lbs. (2-4 Nm).
  23. Connect the negative battery cable.
  24. Use the DRB® scan tool ASD Fuel System Test to pressurize the fuel system. Check for leaks.

Mar 02, 2017 | Chrysler Cars & Trucks

1 Answer

I have a 04 f-150 3v 5.4L. I'm having problems


check the back side of the throttle body butterfly . if it is got gummy sticky back side get throttle body spray and clean this soud help the idle problem

Oct 09, 2011 | 2004 Ford F150

1 Answer

How often should you have a fuel induction/throttle body service performed ona 2002 Nissan Pathfinder 4X4 SE?


I don't understand the question!

You can spray the Throttle Body yourself, every 2 or 3 years, if you like,
with CRC Throttle Body Cleaner.

There is nothing to clean or service, for the most part

Injector Cleaner-is a waste of money.
What would 10 oz of anything put into a 15 gallon fuel tank do?
common sense

Nov 23, 2010 | 2002 Nissan Pathfinder

1 Answer

04 GMC Envoy 4.2 Get PO0171 code and since the envoy doesn't have a MAF sensor what is the most common problem.


First thing to do is to run some Techron injector cleaner through the gas tank, then a cleaning of the throttle body is also very important. For more information, check out www.trailvoy.com, this forum is a wealth of information on Trailblazers and Envoys.

Sep 14, 2010 | 2004 GMC Envoy

5 Answers

My 04 f150 had a rough idle and would sometimes stall out. dealer said it was throttle body so I replaced. The idle is still rough but it it doesn't stall. Could it be a coil pack? if so do I need to...


I have a 2005 f150,with a 4.6 and it idles rough and when you turn on the ac it wants to die. Checked the codes and there are no codes.Any suggestions?

Apr 30, 2010 | 2004 Ford F150

2 Answers

Would like to know what code 506 means on my 04 f150all i did was change my battery and check engine light came on truck started to stall and run ruff is there a reset sequence i need to go through? please...


P0506--idle air control system rpm lower than expected--check around where battery was replaced may have damaged or knocked loose a vacuum line- possible dirty throttle body clean throttle body check for restriction in intake air tube also clean" iac"---possible faulty pcv valve fix or replace if necessary--good luck

Jan 27, 2010 | 2004 Ford F150

1 Answer

When I slow down, my truck stalls and I have stop and start it up again


have the throttle body checked. same thing happened to my 04 F-150 and the throttle body was caked with carbon. Had it cleaned, runs like a champ now

Nov 21, 2009 | 2004 Ford F150

2 Answers

Camry 1991- really sluggish and jerky


It's just going to take some time and simple cleaning. If there is an Auto Zone around your area, you can buy all the things needed to get the car running 100% again in no time at all for under $40.00. Here is a few things that I do when i get a new car with a few years under it's wheels. Buy a bottle of injector cleaner for the fuel injectors, like STP, a bottle of Marvel Mystery Oil to add to the engine oil, and two can's of Throttle body cleaner for the throttle body and follow the instructions on the can. Make sure it's throttle body cleaner. The Carburetor cleaner is to corrosive for the throttle body gasket. Once you have reached 3,000 miles, service the engine and have them replace the oil (5W-30) and filter and add another Marvel Mystery Oil. This will clean out all the carbon and sludge in the engine to free up the oil passage ways, replace the Air filter, and PVC valve every 30,000 miles or once a year. Cleaning out the throttle body and adding the fuel injector cleaner will also help the fuel system and have them replace the fuel filter every 30,000 miles or once a year to ensure there is no fuel restrictions in the fuel system. Once this has been done you will notice the engine runs like new and you may have to use the Marvel Mystery Oil and fuel injector cleaner every 6 months to keep the internal engine free from sludge and carbon. Good luck and keep me posted, be glad to help you keep the car running 100% for a long time. 

Sep 05, 2009 | 1991 Toyota Camry

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