My MPV Mazda DIESESL 2004 do not start with the igition key. I pump the fuel mannually at the priming pump and some times it starts.
Although it gives a good krank well it do not starts.
I must push it and put it in gear with the ignition on release clutch an it starts auickly.
I have change the fuel filter and cleaned the filter holder, even though I have to pump mannually. The engine do not stays on nornally it cuts off as it runs of of fuel.
The TCS light will often come on with the service engine light - don't worry too much about it unless it comes back after you fix your fuel problem.
Get your diagnostic codes read and cleared and then check what they mean. I'm going to have a guess that you've got low fuel pressure though. This is generally caused by a faulty fuel pump, faulty wiring to the fuel pump or a poorly flowing fuel line system.
Your next step is probably to check your fuel pressure. If this is low, then you're getting closer to your problem.
Check your priming and main fuel pump runs when you first turn the key to the ON (but not the crank) position. It should make a very quite noise to build up pressure before you try to start the motor. If this doesn't happen, you should check the wiring to the pump isn't faulty. If the diagnostic code suggest a faulty fuel pump relay, you may need to replace it. If you can't find a wiring fault and you seem to be getting power TO the fuel pumps, it's probably time to pull the pump/s out, check it's DOA and replace it if necessary.
If your fuel pump and wiring are functioning correctly, you may have a clogged fuel system. Check the fuel lines - particularly the soft connecting lines - for blockages and collapsed sections.
Because manually pumping the system seems to work, I'm going to suggest you should start by looking at the diagnostic codes and checking the pumps and wiring rather than the fuel lines though.
Hope this helps,
Sherwin
Glow plugs heat your engine/cylinders to allow a diesel engine to start more easily - they are similar to spark plugs in a petrol engine - however, they only operate when starting. I don't think this is likely to be the issue but it is definitely worth checking as well.
The glow plugs are located in screwed in fittings into the cylinder head.
Hope this helps,
Sherwin
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Have you chaged the glow plugs.They have to be working to start the engine from the key.
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What is the glow plugs? Please- Since I do not have a repair manual there many parts I do not know.
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