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How to bleed fuel system mitsubishi 6d16 engine

Engine will not start. trying to locate bleed screws on fuel injection pump and need to know procedure.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ilragatzzo78
  • 241 Answers

SOURCE: no fuel coming from fuel injection pump,bosch inline 5 cylinder

IT SOUND LIKE A BAD FUEL PUMP TO ME.
TRY SCANNING THE VEHICLE FOR ANY CODE.
IF THERE ARE CODES POST THEM HERE AND I WILL LOOK THEM UP FOR YOU

Posted on May 28, 2008

  • 208 Answers

SOURCE: Need location of fuel pump on a 1992 BMW 525i straight six engine

The fuel pump is located under the back seat on the passenger side. You will find an access cover and will need to remove the screws. You should be able to listen for the pump while someone cranks the car. Also I believe there is a large green w/ blue trace wire and an equally large brown wire at the connector. Check for battery voltage across the two wires. The fuse for the pump should be in the fuse panel under the hood.

Posted on Mar 09, 2009

  • 1129 Answers

SOURCE: I need to bleed air from my radiator/engine block

It is usually located on either the thermostat housing or on the highest point in the cooling system top radiator hose housing going into the engine. Run the motor for approx. ten minutes then turn heater on high unscrew bleeder 3/4 of a turn and then turn back in when coolant squirts out. Repeat after 5 more minutes of run time.

Posted on Jan 05, 2010

Testimonial: "Thanks...the top hose goes into the thermostat housing and the only thing on the housing that unscrews has a sensor plugged into it.Need image."

  • 1 Answer

SOURCE: my subaru 1997 wont start no fuel going in the

first check fuel pressure, guages sold at local auto store run $30-$50.. but it is a quick hook up and sorts out alot of maybe'sss.

if in fact there is no pressure you are likely correct in looking at a relay or the pump itself.. relay should be labelled with all the other in hood compartment..

whereas, the fuel pump is likely in the tank, so drop the tank, and replace.. they go for about $100 for a rebuilt.. don't forget to also change the fuel filter.. Subaru put the filter easily located in engine compartment.

Good luck
Three3walkers

Posted on Jan 27, 2010

  • 523 Answers

SOURCE: No Fuel??? Not starting.

You have fuel flow but the question now is are the injectors pulsing. Given the year of the truck my gut says your ECU, Engine Control Unit, has failed. Mitsubishi had issues with the capacitors in their early 90's cars, trucks SUVs. I have been thru this with two monteros and one 3000GT, very common. To check your injectors rent a set of NOID lites from Autozone our such. Remove an injector plug and itstall a noid light. Turn the engine over, if no flash, no pulse. Remove the ECU and carefully open it up. Look for the capacitors, there should be 3, look under the capacitors on the board; if there is a grease like substance, often time it has a green hew to it, then the capacitor(s) have failed. It may be possible to replace the capacitors or simply purchase a rebuilt ECU. Be ceratin the MD number matches on the new unit.
Please let me know your results and if this had assisted you.
Thanks, Tom

Posted on Apr 25, 2010

Testimonial: "Thanks! I will try your ideas and get back to you shortly!!!"

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1 Answer

Mahindra xuv not starting after ran out of diesel


You will have to bleed the fuel filters then open the bleed screw on the injection pump. Physically pump the arm on your fuel pump until fuel is present at the injection pump bleeder. Then snug the bleeder closed. Turn the engine over with the starter, while cracking the injector lines open at the injector fittings, one at a time until fuel is present. Once you have fuel, snug the fitting closed and it should run at this point. let the starter rest between bleeding injectors to avoid damaging the starter

May 29, 2017 | Mahindra Cars & Trucks

1 Answer

How do you bleed a diesel pump jeep Cherokee turbo diesel 3.1 5 cylinder 2001


we dont have this engine here, USA.
but i have the WG jeep book,
starting page 12 , chapter 14


FUEL INJECTION PUMP BLEEDING
(1) If the fuel injection pump has been replaced,
air should be bled at the overflow valve before
attempting to start engine.
(a) Loosen the overflow valve (Fig. 18) at the
rear of the injection pump.
(b) Place a towel below the valve.
WARNING: WHEN CRANKING THE ENGINE TO
BLEED AIR FROM THE INJECTION PUMP, THE
ENGINE MAY START. PLACE THE TRANSMISSION
IN NEUTRAL OR PARK AND SET PARKING BRAKE
BEFORE ENGAGING THE STARTER MOTOR.
CAUTION: Do not engage the starter motor for
more than 30 seconds at a time. Allow 2 minutes
between cranking intervals.
(2) Crank the engine for 30 seconds at a time to
allow air trapped in the injection pump to vent out
the fuel injector drain tubes. Continue this procedure
until the engine starts. Observe the previous WARNING
and CAUTION.
(3) Tighten overflow valve.
HIGH-PRESSURE FUEL LINE BLEEDING
WARNING: THE INJECTION PUMP SUPPLIES HIGH-
-PRESSURE FUEL OF APPROXIMATELY 45,000 KPA
(6,526 PSI) TO EACH INDIVIDUAL INJECTOR
THROUGH THE HIGH-PRESSURE LINES. FUEL
UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE
THE SKIN AND CAUSE PERSONAL INJURY.
WEAR SAFETY GOGGLES AND ADEQUATE PROTECTIVE
CLOTHING AND AVOID CONTACT WITH
FUEL SPRAY WHEN BLEEDING HIGH-PRESSURE
FUEL LINES.
WARNING: DO NOT BLEED AIR FROM THE FUEL
SYSTEM OF A HOT ENGINE. DO NOT ALLOW FUEL
TO SPRAY ONTO THE EXHAUST MANIFOLD WHEN
BLEEDING AIR FROM THE FUEL SYSTEM.
Bleed air from one injector at time.
(1) Loosen the high-pressure fuel line fitting at
the injector (Fig. 19).
(2) Crank the engine until all air has been bled
from the line. Do not operate the starter motor
for longer than 30 seconds. Wait 2 minutes
between cranking intervals.
(3) Start the engine and bleed one injector at a
time until the engine runs smoothly.

end quote.
pump timing is on next page
or tank filter line priming before. above.

Mar 22, 2016 | Jeep Cars & Trucks

1 Answer

Toyota Land cruiser. Will not start, When cranking no diesel passes to the injectors. once its running runs smoothly. once you shut it down and immediately try to restart will not start checked for diesel...


Hi,

if the diesel does not start on the starter mtr, are you tow-starting it?
There are a couple of other bits of info required. I say that, because if the engine isn't turning over fast enough on the str mtr then it will not start. If it has got the cranking speed, then the injector pump isn't getting enough fuel to pump to the injectors.

However, that theory is null and void if the engine fires with a 'bump / tow' start

QUICK INITIAL TEST:

Remove the cap from the fuel tank.
Slacken the OUTLET fuel pipe union on the Fuel Lift Pump.If unsure trace the fuel inlet pipe back from the fuel injection pump.

Have a helper crank the engine and check for fuel coming from the slackened union.

No fuel or little fuel? Problem between fuel tank and lift pump, or Lift pump is faulty.

Check fuel supply pre-filter for trash etc. Also check vent hole in the fuel tank cap, it must be clear. If no vent in fuel cap, check tank and ensure that if a vent is fitted that it is CLEAR of any obstructions.

Have you checked the throttle position on the start sequence?

What diesel engine is in the vehicle? It should have a 'lift' pump to bring the fuel from the tank to the injection pump.If the 'lift' pump is not working correctly, or if there is an air leak between the fuel tank and the 'lift' pump then it will not be pulling sufficent fuel from the tank to the injection pump. The injection pump merely compresses the fuel and sends it to the injectors. If the vehicle was allowed to run out of fuel, was refilled and then will not start when cranking, you may have air in the injection pump.

Do you know the difference between a DPA injection pump and an inline injection pump? DPA pump works like a distributor in a gas engine. They are also notoriously fickle as regards fuel requirements / supply.

As you are in a somewhat remote location I would advise you to get a length of hose, suitable for transferring diesel from a 1 gal container to the engine. Locate the fuel "lift' pump and slacken the pipe union on the outlet side, (the feed to the injector pump") Go to the primary fuel filterand slacken the inlet fuel pipe union, but do NOT remove the pipe from the primary filter .. Remove the pipe from the LIFT pump outlet, and be careful with it. Depending on the type of union, you can either slide an end of the length of hose which you have on hand, over the pipe end and clamp it with a screw type hose clamp, (Jubilee type). As you have already slackened the fuel pipe at the primary fuel filter. Move the fuel inlet pipe at the lift pump, with now attached hose untill it is clear of local obstructions.

Now, using a funnel, or whatever, pour a cup or two of diesel into the hose from the LIFT pump end. Secure the hose in a high vertical position, (use the bonnet / hood and a piece of sash cord / mechanic's style wire). Go to the inlet fuel pipe at the primary fuel filter and check id fuel is coming out of the union which you had slackened. If fuel is apparent, secure the union.

Now, the usual way to do the next step is with a helper, it makes it a lot easier. It also depends upon whether you have a DPA type injection pump or an inline.

If you have a DPA pump, (identified by the fact that all the injector lines are situated around the body of the pump at one end, hence the Distributor Pump Assy name.) then you will have to bleed the pump assembly. There are normally TWO bleed screws on the unit if it is of CAV origin. One is normally located on the front side of the pump casing quite evidently visible. It is small, I think 3/16 wrench, or the metric equivalent. However, there is a smaller bleed screw on the pump casing usually located on the engine block side..

That is the one which people tend to miss, and end up having great difficulty in bleeding the pump correctly.

If you cannot find the smaller bleed screw, do not despair. Open the FRONT bleed screw and instruct your helper to start feeding diesel fuel down the hose. Do NOT remove the bleed screw completely to speed up the bleeding process. You will find, as a lot of people have, that you will drop it, and have a hard job finding it, as it seems to be reluctant to fit back into the threaded hole it came from!

Plus if you just slack it, you will not run the risk of cross-threading it when you try to re-fit it.

Ok, have a gallon jug or similar, securely sitting on the wing / mudguard /fender filled with diesel on the lift pump side where you have secured your hose.Ensure that the hose fitted to the fuel line to the main fuel filters and hence to the injector pump is fully primed and then place it into the gallon jug of fuel on the fender /mudguard etc.
Get your assistant to crank the engine, and it should start. You now know that the lift pump / line tfrom fuel tank to lift pump is definetly faulty.

You might well check the fuel line Pre-filter which is normally situated between the fuel tank and the lift pump. If it's full of sediment, it will not allow free flow of fuel. Likewise check the main fuel filters for blockage, plus check a fuel /water separator if fitted.

Is the engine fitted with heater / glow plugs? If it is, and they are not working, the engine will not start even on a warm day. Check the wiring to them etc. There should be an indicator in the cab to show if they are on or not.

If they do not work, and you have checked them with a meter etc, Disconnect the wiring to them. Get a can of Diesel start, which consists primarily of ether and have your helper crank the engine. Whilst the engine is cranking, spray a SMALL amount of the starting fluid into the main air cleaner. If the engine starts, well and good. If you do not have starting fluid, spray a little WD40 onto a piece of rag and hold it in the main
air inlet cleaner. If all is well the engine will fire up. Do NOT use gasoline / petrol, as a starting aid, the engine may very well give a very large bang and self distruct!! Do not jam the rag into the air inlets the engine will ingest it and you will have a BIG problem. Do all the above AT the MAIN air cleaner.

Checking for fuel at the injectors entails SLOWLY slackening the injector farthest from the injection pump, whilst someone cranks the engine. The injector must be tightened when the fuel is under pressure, other wise air will be sucked in and that cylinder may well have a "miss'. just a reminder::))

Last but not least! Check the DPA pump and ascertain which type of stop control is fitted. Some have an electric solenoid so check the wiring to it and ensure that it has a full operating stroke. Disconnecting the wiring to the off /on solenoid when the engine is stopped, then, turning the ign on and touching the wire to the connector on the pump should result in an audible click. Some of those DPA pumps on / off solenoids work in reverse. The power is applied to the solenoid when the engine shutdown switch is activated. Through a relay operated by engine oil pressure, the power is held to the solenoid long enough to shut the engine down. With the engine shut down, oil pressure drops and the relay is opened and power is disconnected from the solenoid. Likewise check if it is a mechanical off/on cable operated lever. if it has worked loose etc, then it will hold the "no fuel' position when trying to start.

I hope this gives you something to work with. Before closing, are you aware that you could rig a 12V auto gasoline pump to supply fuel to either the lift pump or the main fuel filters if you find that the lift pump is indeed faulty but that obtaining a replacement locally may prove to be difficult. If you do fit a 12 V auto gas pump to the fuel system, you will be able to bleed the entire system at the DPA injection pump as the 12V pump will push the fuel all the way through the system. A word of warning on that issue, make sure the fuel return line from the DPA injection pump can handle the flow from the 12V gas pump. if not then you will have to fit a pressure reducer in the outlet side of the 12V pump. they are sold in auto stores, and some pumps actually have them fitted.

Jan 25, 2011 | Toyota Land Cruiser Cars & Trucks

1 Answer

What do i need to know before changing the fuel filter


Fuel Injected Engines

The fuel filters on injected engines are a metal cylinder which is located in the rear frame rail or in the engine compartment. You may find it under the injection manifold on some models. Each model varies.

  1. Unbolt the retaining screws and remove the protective shield from the fuel filter.
  2. Place a pan under the delivery pipe to catch the dripping fuel and SLOWLY loosen the union bolt to bleed off the fuel pressure. The fuel system is under pressure. Release pressure slowly and contain spillage.

Sep 15, 2010 | 1994 Toyota 4Runner

1 Answer

I fixed used injection pump to engine and is not starting,i check oniy to fine out that the pump is not injecting fuel to the injectors.the timing is good.it is nissan navara 2000 model


1) There could be an air lock to the fuel system, try to bleed the system.
2) If the fuel is reaching the injector pump & not supplying to the injectors nozzles thn the pump needs attention.
Hope this helps!

Aug 18, 2010 | 1997 Nissan Pickup

1 Answer

6.2 diesel will not bleed diesel


Make sure all lines are light when turning engine over.While turning engine over loosen the a line closes to pump or the fuel filter.You should get some fuel.Then continue on all lines working farther away.

May 02, 2010 | 1990 GMC C1500

2 Answers

SANDERSON TELEPORTER, HOW DO I BLEED THE LUCAS FUEL PUMP ON A PERKINS ENGINE


Perkins is a hard engine to prime. Fill the fuel filter with clean diesel, there should be a hand pump on the left side(looking at the front of the vehicle) . There should be a bleed screw on top of the filter housing. Loosen the bleed srew and pump the hand pump untill you get a steady stream of fuel from it. Tighten the bleed screw. Loosen the injector bonnet nuts approximately 1 1/2 turns on all of the injectors. Turn the engine over until you see a steady stream of fuel from the the injector bonnets. Tighten the bonnet nuts, pump the handpump approx 10 times and start the engine. Give it half throttle until it stops stumbling and all of the air is worked out of the system.

Jan 08, 2010 | 1985 Mitsubishi Pickup

2 Answers

Mercedes ran out of diesel,put some


Sorry.I am not sure on your model but.If you run a diesel out of fuel,it needs to have the fuel system bled.In the book it will say how.Most common is a bleed valve.Sorry I could not help you more on your car but someone from fixya will..I just wanted to tell you what needs to be done.Sorry I could not help you straight up but wanted to tell you what is needed for your vehicle.Thanks

Sep 27, 2009 | 2001 Mercedes-Benz C-Class

2 Answers

How do you prime the fuel system when its ran out of fuel cummins


LOCATE LOOSEN THE LOW PRESSURE BLEED BOLT.THEN OPERATE THE RUBBER PUSH BUTTON PRIMER ON THE TRANSFER PUMP.DO THIS UNTIL THE FUEL EXISTING THE BLEED SCREW IS FREE OF AIR.IF PRIMER BUTTON FEELS AS IF IT IS NOT PUMPING ROTATE CRANK THE ENGINE APPROXIMATELY 90 DEGREES THEN CONTINUE PUMPING AS DESCRIBE.THEN TIGHTEN THE LOW PRESSURE BLEED SCREW TO 72 INCH POUNDS.

Aug 20, 2009 | Dodge Ram 2500 Cars & Trucks

1 Answer

Hard to start when engine is cold


The thing you need to do is run a leak down test on the fuel pump overnight, hook up a fuel pump test guage to the fuel injector gas rail test port, run the engine, note the fuel pressure when you shut the engine off, it should not drop more than 5 PSI overnight, if it does you need a new fuel pump. Your car doesn't use a cold start valve, that was used on very early Bosch K-Jetronic fuel injection systems, they where last used in the 80's

Oct 28, 2008 | 1990 Mitsubishi Galant

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