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Injector torque specs for a dt466e engine

Need the installation procedure for the injectors on a dt466e engine.

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Posted on Apr 13, 2009

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SOURCE: 2001 mazda tribute fuel injector diagram

if you have a cylinder 4 miss fire it is more likely to be the coil and not the injector. I have replaced a ton of coils on these for miss fires but don't think I've done an injector for this problem yet.

Posted on Aug 13, 2009

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I installed new catalytic converter on 98GMC Sonoma bcuz engine had no power and old converter was getting red hot. New c.c installed now sputter,loss of power up hills. Suggestions? Dave

I suspect you are running far too rich a mixture - that would account for the burned out converter and lack of power. Start the engine when it is cold and do a sniff test of the exhaust. If it smells of raw gas or is very dirty, that lends weight to this hypothesis. If you are sure your oxygen sensors are good (I assume you've already read out any engine service codes), then the next step is to check for leaky injectors or a shorted injector drive transistor in the engine computer. Working one cylinder at a time, remove the spark plug and check it for carbon fouling. If it's fouled, unplug the injector for that cylinder (just the electrical connector) and start the engine. Do a sniff test. If it's still dirty after running a few seconds, the injector is leaking. Note that more than one injector could have this problem. If that is the case, clean or replace the entire set.

Testing for a shorted injector driver:
  1. Disconnect the battery (if you have an aftermarket stereo, first check the owner's manual for the stereo for proper procedures to avoid tripping an anti-theft lockout).
  2. Disconnect the suspect injector plug. Use an ohmmeter (multimeter on resistance setting) to measure resistance from each contact in the plug to ground. One of them is connected to the ignition 12V circuit, and the other goes to the driver transistor. The 12V pin will probably have some resistance measurement, but it will be at least a few ohms. You can verify it by turning the ignition switch to the run position (this is why the battery is disconnected for this test) and measuring resistance to the positive battery cable - it should show that it's connected. The remaining driver transistor lead should NOT show a low resistance to ground; it should read up in the millions of ohms if you have the positive lead of the ohmmeter connected to it and the negative to ground. If instead it shows a short, verify the reading by comparing it with another injector plug to make sure the engine designers didn't throw you a curveball by switching to positive instead of ground. In that case, the results would be reversed between ground and positive.
  3. If the injector driver is shorted, the engine computer needs to be repaired or replaced. The last time I saw this problem (a 1984 model), GM was using proprietary markings on the transistors, which makes it harder to find a replacement part. If you want to try for a repair, let me know in the comments, and include the resistance for a good injector coil (next step).
  4. If the driver is shorted, the injector coil may be bad; a fault in the one can damage the other. Measure the coil resistance on the injector terminals, and compare with two other injector coils. If the coil resistance is significantly less (by at least 5%), the injector coil is also bad. The standard procedure in this case is to replace the injector, but if the injector mechanism is good, it's easier to unlatch the coils from a new injector and the old one (so you don't have to remove the old injector from the engine) and put the new coil on the old injector. Do this before installing a replacement engine computer!

Jun 26, 2015 | Cars & Trucks

1 Answer

2000 Ford Windstar, 3.8. Crank, no start. Believe fuel pump is bad, but when I tested voltage at pump harness, it shows 10-11 volts for 1-2 sec, then 5-6 volts as key is left on. Is this normal?

When you turn the key to the on position without starting the engine, you should hear the pump run for a few seconds.
If you don't, found out what terminals are the fuel pump on the pump itself and apply 12 volt power and ground. The pump should run. Pumps are expensive and sometimes a pain to install, so make sure it is bad before getting one. You could spend a couple hundred for nothing.
If your engine has injectors, you can check for fuel and pressure by finding a valve that looks similar to the one on your tire on the tube going to the injectors. Press the small pin inside and gas should come out. Be careful because of it is pressurized, it can spray you in the face.
If all the above is good, then the injectors are not firing. This could be a security lock-out if you had a recent dead battery and tried jump starting. You will need to follow the reset procedure to release the lock-out. If you still can not stay it, then you will need to follow the diagnostic procedure to find out why the injectors are not

Apr 22, 2014 | 2000 Ford Windstar

1 Answer

How can I change fuel injectors on a Toyota Tacoma 98 4 cylinder

The Toyota Tacoma has a fuel injector that mixes fuel with air. This technology almost completely replaced carburetors in the late 1980s and its programmable firmware allows the same hardware to be used with different fuels. A fuel injector is only a nozzle and a valve; it still requires a pump to inject the fuel into the engine.
    • 1 Determine which fuel injector your Toyota Tacoma will need. This depends not only on the make and model, but also the engine size. Models made before 2005 may have a 2.4L, 2.7L or 3.4L engine. The current version may have a 2.7L or 4.0L engine.
    • 2 Relieve the fuel system pressure and disconnect the negative battery cable with a socket wrench. Remove the engine under cover subassembly and drain the engine coolant. Detach the intake air connector and disconnect the throttle body motor assembly with a socket wrench.
    • 3 Disconnect the fuel lines and remove the fuel pressure pulsation damper assembly with a socket wrench. Unplug the electrical connectors for the fuel and vacuum switching valve. Remove the engine wiring harness clamp and the air conditioning compressor clutch connector with a socket wrench.
    • 4 Remove the two fuel rail mounting bolts with a socket wrench and lift out the fuel rail with the injectors still attached. Pull out the fuel injectors and discard the old gaskets.
    • 5 Use new gaskets and install the new fuel injectors by reversing the removal procedure.
    • 6 Fill the coolant reservoir with coolant of the proper grade and type. Start the engine and check for fuel leaks.

Feb 18, 2012 | 1997 Toyota Tacoma

1 Answer

How to install a fuel injector on a 2002 jeep liberty 3.7

so that mean the old one is all ready removed.?
or did you mean all steps in the fsm for INJECTOR.
the steps are the same on all EFI fuel rail injectors.
you could google that or you tube it or read the FSM.

hide call keys from step 2 on, or very bad things can happen.
(wife or kids no aware of danger)
ill just cover the (basics)
1: per FSM , depressurize the system, in can be at 60PSI
parked. so avoid fuel in eyes, or a fire. we do that first.
gain access to rail under failure. (RUF) (no barking)
2: remove injector X , wire plug. (failing)
3: then detach the injector rail clamps the both rails off as one....
injector are all now loose, to pull off.
4: add new seals to new injector, and install in reverse order.

that's it, only the gain access , varies,... mostly.

last depressure steps:
run engine,
remove fuel pump relay, engine stalls. key off, hide keys

next tje FSM words (just the OFF section)

  1. Remove fuel tank filler tube cap.
  2. Perform Fuel System Pressure Release Procedure.
  3. Remove negative battery cable at battery.
  4. Remove air duct at throttle body air box.
  5. Remove air box at throttle body.
  6. Disconnect fuel line latch clip and fuel line at fuel rail. A special tool will be necessary for fuel line disconnection.
  7. Remove necessary vacuum lines at throttle body.
  8. Disconnect electrical connectors at all 6 fuel injectors. Push red colored slider away from injector. While pushing slider, depress tab and remove connector from injector. The factory fuel injection wiring harness is numerically tagged (INJ 1, INJ 2, etc.) for injector position identification. If harness is not tagged, note wiring location before removal.
  9. Disconnect electrical connectors at throttle body sensors.
  10. Remove 6 ignition coils.
  11. Remove 4 fuel rail mounting bolts.
  12. Gently rock and pull left side of fuel rail until fuel injectors just start to clear machined holes in cylinder head. Gently rock and pull right side of rail until injectors just start to clear cylinder head holes. Repeat this procedure (left/right) until all injectors have cleared cylinder head holes.
  13. Remove fuel rail (with injectors attached) from engine.
end expert.
login and read all steps. that be best , then ask questions?

Jan 02, 2012 | 2002 Jeep Liberty

1 Answer

Replace fuel inj 2009 lincoln ls 3.9 eng

Check this procedure about V8 3.9L Fuel Injectors - Removal & Installation
  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2. Relieve fuel system pressure.
  3. Remove or disconnect the following:
    Negative battery cable Engine appearance covers Fuel lines Fuel pressure regulator Fuel cross over elbow Fuel injector connectors Fuel injector clamping plates Fuel injectors
To install:
  1. Install or connect the following:
    Fuel injectors. Use new O-ring seals. Fuel injector clamping plates Fuel injector connectors Fuel cross over elbow Fuel pressure regulator Fuel lines Engine appearance covers Negative battery cable
  2. Start the engine and check for leaks.

  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2. Disconnect the negative battery cable.
    CAUTION The engine appearance cover is equipped with a noise suppressor. If the noise suppressor becomes separated from the engine appearance cover it must be positioned on the intake manifold prior to installing the engine appearance cover.
  3. Remove the engine appearance cover and the noise suppressor, if detached.
  4. Remove the air cleaner outlet pipe.
  5. Release the fuel system pressure.
  6. Remove the four engine appearance cover mounting bracket nuts and the brackets.
  7. Disconnect the fuel pressure sensor electrical connector from the sensor.
  8. Disconnect the fuel pressure sensor vacuum connector from the sensor.
  9. Disconnect the eight fuel injector electrical connectors from the injectors.
  10. Disconnect the fuel temperature sensor electrical connector from the sensor.
  11. Disconnect the fuel supply tube retaining clip from the fuel injection supply manifold.
  12. Disconnect the fuel supply tube spring lock coupling.
  13. Remove the four bolts and the fuel injection supply manifold and fuel injectors as an assembly.
  14. Remove the fuel injectors from the fuel injection supply manifold.
    CAUTION Use O-ring seals that are made of special fuel-resistant material. Use of ordinary O-ring seals can cause the fuel system to leak. Do not reuse the O-ring seals.
  15. Remove and discard the 16 O-ring seals from the fuel injectors.


    Fig. Exploded view of the fuel injector mounting-3.9L engine shown

To install:
  1. Lubricate the new fuel injector O-ring seals with clean engine oil before installing.
    CAUTION Use O-ring seals that are made of special fuel-resistant material. Use of ordinary O-rings can cause the fuel system to leak. Do not reuse the O-ring seals.
  2. Install sixteen new O-ring seals onto the fuel injectors. Lubricate the O-ring seals with clean engine oil prior to installation.
  3. Install the fuel injectors and clips onto the fuel rail.
  4. Install the fuel rail and injectors as an assembly. Tighten the fuel rail bolts to 89 inch lbs. (10 Nm).
  5. Install the remaining components in the reverse order of removal.

Keep us updated.

Jan 14, 2011 | 2002 Lincoln LS

1 Answer

How toreplace fuel injector chevy astro 1999

Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Relieve the fuel system pressure. Refer to the fuel system relief procedure in this section.
  3. Remove engine cover.
  4. Disconnect negative battery cable.
  5. Remove upper manifold assembly.
  6. Disconnect fuel meter body electrical connection and the fuel feed and return hoses from the engine fuel pipes.
  7. Remove poppet nozzle out of the casting socket by squeezing the nozzle locking tabs together.
  8. Remove fuel meter body by releasing the locktabs.
    NOTE Each injector is calibrated. When replacing the fuel injectors, be sure to replace it with the correct injector.
  9. Remove lower hold-down plate and nuts.
  10. While pulling the poppet nozzle tube downward, push with a small prytool down between the injector terminals and remove the injectors.

    0996b43f8022cb96.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Exploded view of the fuel meter assembly, including the injectors

To install:
  1. Lubricate the new injector O-ring seats with engine oil.
  2. Install o-rings on the injector.
  3. Install fuel injector into the fuel meter body injector socket.
  4. Install lower hold-down plate and nuts. Torque the nuts to 27 inch lbs. (3 Nm).
  5. Install fuel meter body assembly into the intake manifold. Torque the fuel meter bracket retainer bolts to 88 inch. lbs. (10 Nm).
    CAUTION To reduce the risk of fire or injury ensure that the poppet nozzles are properly seated and locked in their casting sockets.
  6. Install fuel meter body into the bracket and lock all the tabs in place.
  7. Install poppet nozzles into the casting sockets.
  8. Engage electrical connections.
  9. Install new o-ring seals on the fuel return and feed hoses.
  10. Connect fuel feed and return hoses and tighten the fuel pipe nuts to 22 ft. lbs. (30 Nm).
  11. Connect negative battery cable.
  12. Turn the ignition ON for 2 seconds and then turn it OFF for 10 seconds. Again turn the ignition ON and check for leaks.
  13. Install the engine cover.

Jan 20, 2010 | 1999 Chevrolet Astro

2 Answers

2002 grand prix motor 3.8 just want to know where

Exploded view of the thermostat arrangement—3.8L engines


Oct 31, 2009 | 2002 Pontiac Grand Prix

2 Answers

1997 Grand Prix GT.new3800 and fuel pump, spark and gas, nofire!

Hello! When you swapped the engine, did you have the PCM (Powertrain Control Module) from the new motor as well? If not - you will need to have a "CASE" learn run on the PCM that you're currently using (the one from your previous engine). Important note: the 1997 Grand Prix GT's and GTP's have quite a few differences from the 98-03's. The CASE procedure is run using the Tech II tool and can be done at any dealership in about 10 minutes. If they aren't sure what that is, suggest to them that they follow the procedure for DTC 1336 - Crankshaft Position (CKP) System Variation Not Learned. :)

Hope this helps and good luck!

Sep 24, 2009 | 1997 Pontiac Grand Prix

2 Answers

Fuel injectors

When you install new fuel injectors or are replacing the o rings, apply some lubricant to the o rings to allow for easy installation. I like to wet them with PB Blaster before I put them on the injectors. Also before you remove the injectors, blow out the area around each injector and the whole top of the engine with compressed air through a narrow wand (it gives you a very high velocity air blast that will remove all the impurities from the injector areas to keep them from getting into the engine when you pull out and install the o rings. I like to start at one side of the engine and work my way to the other and after that do a good overall blasting of the engine with compressed air to make sure all the sand and whatever else is out of where you are working. (Be sure to wear safety goggles when doing this procedure and at all times when working on a vehicle). When installing injectors, be sure to have all of them lined up with the holes and press evenly and firmly (you may have to wiggle the fuel rail a bit to get the injectors to go into the holes). Be sure to install all the fuel rail bolts and tighten them to specification. Turn the key on but do not start the engine to verify the injectors are not leaking. If you still have a leak, you may have a cracked injector body or a seal leaking on an injector.

Hope this helps


Apr 13, 2009 | 1997 Chevrolet Cavalier

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