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MAN TGA 26.480 get no diesel from pump to common rail what could be the problem

Tried bleeding the system when cranking the engine no diesel to the rail or out of the pump there is diesel on the input to the pump and on the return

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  • Contributor
  • 26 Answers

Check your lines to make sure you haven't got a blockage to the common rail as well as making sure your fuel pump isn't nackered.

Posted on Dec 08, 2014

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SOURCE: common rail system

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It's been awhile with diesel engines, go buy yourself a repair manual.

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SOURCE: Ran out of diesel 1.9 TDi 74kw. have refuelled and

This is very important for Audi 1.9 TDI engine: IT IS FORBIDDEN TO RUN WITHOUT DIESEL FUEL IN RESERVOIR !!!
This type of engine is equipped with pump-nozzle injectors which develop up to 2050 bar injection pressure !
Remove the fuel filter, fill up with diesel fuel and put in place. After that try to start the engine with accelerator pedal to the floor. Heed of electric starter motor temperature and battery status! After 40 - 50 sec. of start attempting wait for 1 - 2 minutes for battery and electric starter motor revival. After few starting attemptions the engine must start.

Posted on Jan 28, 2010

alicantecoli
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please explain a bit better ,pump 180º out ,more like you have made a boo boo here .please suppy year and model and a detailed description of what you have done so far and i will have a look after work

Posted on Apr 03, 2010

  • 14 Answers

SOURCE: 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.

Posted on May 02, 2010

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Hi all just changed the fuel filter in my 2008 lancer now wont start i suspect the fuel pump is this common cheers phil


is this a diesel? if so you have got air in the system there is a bleeding system you should follow after filter change which normally involves switching ignition on/off 6or 8 times with few secs in between with ign on to bleed air from system if it got a electric fuel delivery!. or if its mechanical a vacuum prime pump is needed which may be a dealer bit of kit which ever it is dont try and start until the air has been removed. you must not get air in to tha high pressur side. i suspect @2008 it will be common rail system and can cause major probs if you get air in the high pressure side not easy to advise you dont say what engine you have. if its petrol then changing the fuel filter should not cause a prob if fitted correctly,if its common rail diesel and you have got air in the high pressure side you have to slacken the high pressure pipes and keep cranking the engine to exclude the air after 1st bleeding the low pressue side of the system then retighten the pipes. but any high pressure pipes loosened should be renewed they are normally one use only and could leak if not good luck

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MAN TGA ffr 32770 and EDC failure codes shown on display.


I, feel sorry for you, after reading your problem, but don't worry you visit the Reliable-Store they will help you for sure.
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WHAT CAUSES HARD START AFTER FUEL RAN OUT


Try bleeding the system again. Sounds like there is still some air in the fuel system.

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There is supply of diesel fuel from the lnjection pump but it seems no diesel going inside the chamber,,


Not enough information. What vehicle? What year? What kind of injection system? There are basically two kinds of diesel injection - injector pump and common rail.
I did notice you talking about an injector pump, but both these systems need a high compression pump to operate the injectors. On the older systems, the injector pump is connected via a gear system to either the crank or the camshaft, and its task is to supply fuel to the injectors in very much the same way as a distributor does on a petrol car.
Now, do you mean the header pump that supplies diesel to the injector pump, or do you mean there is diesel coming out of the injector pump between the pump and the injectors?
On the other system, which I assume you are talking about, diesel is supplied to a high pressure pump which keeps a rail at high pressure. All the injectors are connected to this rail - from there the name "common rail" - and the timing is supplied by the Engine Control Module (ECM) via electrical impulses. Now ,if you have diesel supplied to the common rail but the injectors are not popping, the problem is most likely with the ECM.
However, there is no way of helping you unless you supply more information.

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1 Answer

My mitsubishi L2 4d56 diesel engine common rail direct injection have not start because there no spraying diesel in the nozzel tip,what is the problem of this?


the injectors arte electronically controlled so check the immobiliser. cam crank position sensors. run fault codes. I nothing shows up have an accredited diesel specialist shop check the pump as there may be a high pressure problem ( pump failure-- common in common rail diesels as they will not tolerate dirty fuel, water and some additives in the fuel)

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1 Answer

Diesel in engine of toyota avalon cleaned tank and gas lines now car won't start


bleed all the air out of the system right up to and including air bleeders at the pump. IF it is an electronic pump ( common rail diesel ) it should start. If it has individual pipes from the back of the pump then loosen off the injector nuts and crank it over until the fuel drips from the nut . Tighten the nuts and it should start.

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1 Answer

Caterpillar troubleshooting


First thing to try with any diesel that won't start is to do a diesel system bleed. This one should be before the HP fuel rail type so start by bleeding the lift pump, then the fuel filters, then the main injector pump to lines to the injectors and lastly the injectors. Good luck.

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1 Answer

Cant find the diesel pump relay


it does not have a electric fuel pump the fuel pump is mechanical and is driven by the timing chain, it is a 2 stage pump 1st stage is the low pressure side which draws fuel from the tank 2stage is the high pressure side which supplies very high pressure to the common rail for electronic controlled injectors you have to bleed the low pressure side by drawing fuel up to the filter using a vacuum source or similar if you have changed the filter etc do not try and start the engine until you have done that or you will draw air in the high pressure side and to bleed that you will have to loosen the injector pipes and crank the engine to purge the air but once undone you should replace the pipes according to jaguar due to the very high pressures in the system for safety reasons

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1 Answer

When I drive along it's all fine, but when I put my foot down the car starts to skip like its short of fuel.


Do not do anything if it is a common rail diesel without more instruction. Common rail can be very dangerous & the following instructions are not for common rail. Probably is short of fuel. When was the fuel filter last replaced & the sediment trap drained. A lot of diesels also have a lint filter (fine mesh) located in the pump where the fuel line goes out of the filter into the pump. You just remove & blow out with compressed air. Do you know how to prime & bleed the system. Did the problem start just after haveing a fuel filter fitted?

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1 Answer

After mud and water went through my fuel system a mechanic advised me to change injectors,rail and injector pump but cant get injectors out. It is 3ltr turbo diesel common rail.


your filters should have prevented mud from getting to your injetors, water in the system can cause some problems but nothing so drastic as to change the injectors injector pump or the rail....change your filters, water collectors. make sure there is no more mud or water in your tank . not familiar with that particular engine but you may have to bleed the injection system....oh and get a new mechanic

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