What causes a diesel to over fuel?
Over-fueling can be caused by diesel fuel injector wear that enlarges the nozzle hole or erodes the injector needle and allows excess fuel to flow into the combustion chamber. Diesel engines are not designed to efficiently burn excess fuel so much of the fuel is wasted and exits the engine only partially combusted.
What causes a diesel engine to not start?
Common Won’t Start Problem: Engine won’t run – air in fuel system Solution: Fuel line replacement kit 15. Common Won’t Start Problem: Engine won’t run – air in fuel system
How to troubleshoot a 6.2 L diesel engine?
Diesel engines have very high compression ratios and require a large amount of electrical energy to crank. Check the glow plugs. Most 6.2 L diesels came with one relay but early models had two. Test the glow plugs by unplugging the electrical connection from a glow plug. Hook up an ohmmeter to the glow plug terminal and ground the other end.
What causes the fuel pump to not start?
The fuel pump is running and delivering normal pressure to the engine But, with all that working your engine still will not start. So, the most likely cause, is that the fuel injectors are probably not opening. The (PCM) uses the trigger signal from the crankshaft position sensor; and/or camshaft position sensor to pulse the injectors.
What kind of fuel system does a 6.2 diesel engine have?
The 6.2 L diesel is naturally aspirated, unlike the more recent 6.5 L turbo-charged diesel. The fuel system on this engine includes the fuel tank, mechanical fuel pump, fuel filters, fuel line heater, injectors and fuel lines.
What to do when your diesel engine wont start?
Put your head close to the fuel tank and have an assistant turn the key on without cranking the engine. You should hear the fuel pump in the tank come on. Tap the top of the fuel tank lightly with a piece of wood or rubber mallet and see if the pump unsticks. This will sometimes be enough to get the truck running until you drive to a garage.
Why does a 6.2 L diesel engine not start?
The electrical system is less critical to this engine than on later 6.5 L diesels because the injection system is purely mechanical. A troubleshoot of this engine should walk through the essential components one at a time.
Why does my Hilux 2.4 diesel not start?
A few years ago, A bloke we know was having trouble with his 84 Model Hilux 2.4 Diesel. His would start and run, but when driven about 5 -10, sometimes up to 30 km, it would stop and not restart. Turned out there is a fine screen on the fuel pickup pipe in the fuel tank. And it was blocked. Cleaned it up and was all good.
What to do if your fuel pump won’t start?
Use a circuit tester to check all the electrical connections to the fuel pump. Turn the key to ON. If you see a current, then it is not the pump. If there is no current, check the fuse.