Question about 2008 Smart fortwo

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SMART CAR WITH 0.8 DIESEL ENGINE , NO FUEL PRESSURE AT THE FUEL FILTER, WHAT SHOULD I CHECK NEXT?

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  • Smart Expert
  • 489 Answers

Check the pump

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

  • 127 Answers

SOURCE: My smart fortwo cdi engine

hi, i;ve never worked on one of these, but, it must have an electrical fuel pump. the easiest way to check this is to jack the car up and look up under the rear and near the fuel tank. these pumps are INLINE meaning FUEL PIPE IN THE CENTRE (IN) arrowed toward the engine and FUEL PIPE IN THE CENTRE (OUT). these have 2 conectins IGNITION FEED and GROUND. if you switch on ignition and NO FUEL. then NO IGNITION FEED / RELAY / BAD CONNECTION / NO EARTH / COMPLETE DISCONECTION / FUEL PUMP BLOCKED / FUEL PUMP (INTERNALALLY OPEN CIRCUIT pump needs replacing). i hope this has helped. gerry

Posted on Sep 11, 2010

mecanica03
  • 881 Answers

SOURCE: gas in diesel smart car

remove the fuel tank its easy

Posted on Apr 16, 2009

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How to bleed the fuel system in the 2009 Mondeo after changing the fuel filter on a diesel


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There is a prime bubble like a small rugby ball on the fuel line coming from the tank. Prime that slowly a few time's will get the air out. It will now take a lot of cranking the engine to get it going. The high pressure pump needs to build up 200 lbs pressure before the injectors will open. Keep cranking it will start. Your next problem is the engine managment light. This will come on because of the low rail pressure. It won't effect the car running but will need a plug in to remove the fault and put the light out.

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When you run a diesel engine out of fuel ,it needs to be primed in most cases,see if you can locate the fuel filter and and fill it with diesel fuel,And depending on the yr and make, your engine could be demanding higher pressure then you would think is normal from your lift pump in the tank.

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2006 ford f350 deisel turns over wont start unless i use starting fluid it then runs great. changed fuel filter oil filter and oil, wrench symbol came on went into engine fail safe mode, said something...


the diesel engine is a 6.0L or a 6.4L? because the 6.0L don't use electronic throttle control. they control the demand of diesel threw the high pressure oil system they have a sensor call injector pressure regulator. this sensor is responsible of maintain the proper pressure in the high pressure oil system so that the engine could start . i also suggest you to check if it is any leak on the high pressure oil system or if the low pressure system is delivering the pressure required for the high pressure system to work properly. to do that you most have a scan tool. also you can check the pressure of the diesel pump that its in the chassis to eliminate the high pressure oil system as the cause of your concern. if u don't have the proper gauges to check the pressure of the diesel pump you could remove the cap of the small fuel filter that is next to the oil filter remove the filter and put the ignition switch in the on position and see in the container if you have a fast or slow filling. if you encounter that the filling is too slow then your problem is with the fuel diesel pump that is on the chassis this pump is called HFCM, Horizontal Fuel Control Module

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My 93 mercedes will not start sometimes, it turns over but will not start


hi,good day,your model have two engine gasoline and diesel engine,,for diesel engine check your pre-filter and main filter,fuel and air leak,check your engine shut-off,if not corrected,send (check) your injection pump and nozzle in calibration center,,,for gasoline,sop,,you have to check fuel pressure,,fuel filter,fuel pump,fuel pump relay,,coil,spark plug,cable,transistors box,ty

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1 Answer

My 450 ford moter home turns over but will not start I suspect feul pump


Hello mfsbrown: My name is Roger and I will help. First thing to check is to make sure the fuel filter dirty. Next you should check the fuel pressure. This will require a fuel pressure tester. You did not say if you have a gas or diesel engine. So I will furnish both test pressures. For a V-10 gas engine. (KOEO) Key On Engine Off 35 to 45 psi. (KOER) Key on engine running 28-45 ps. IF your engine is a diesel then the pressures are (koeo) 30 psi. min. (koer) 30-80 psi. If the fuel pump is your problem. Make sure to replace the fuel filter. A dirty fuel filter will cause damage to the fuel pump. Should you need further help please just ask. Please rate the answer. This way I know it was helpful. Thank You for using Fix Ya. Roger

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Diesel engine, grey market kubota, the turqouise


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1 Answer

Gas in diesel smart car


remove the fuel tank its easy

Mar 22, 2009 | Smart fortwo Cars & Trucks

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