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Why does my Isuzu NPR 4 have smoke in it?

Why does my Isuzu NPR 4 have smoke in it?

-Normally means the fuel being injected into the cylinder – is not burning correctly. The smoke may be strong and/or burn your eyes as well. Possible Causes: 1) Engine pump, (diesel fuel pump) timing is out. 2) Fuel starvation to the pump. Air (trapped) in system or being drawn in. 3) Low engine compression. 4) Water or gasoline in fuel.

Why does my Isuzu NPR diesel engine not start?

If it starts with one of the fuel lines to the injector capped, you know that that injector is allowing fuel to pass and not allowing enough fuel pressure to build in the common rail to start the engine. My test showed that the injector on cylinder #4 was allowing the fuel to pass and not allow the pressure to build high enough to start it.

What’s the difference between white smoke and Isuzu diesel?

White smoke in a VW diesel is not really any different, when compared to white smoke from an Isuzu diesel. It means the same – engine mixture, efficiency wise, is out of spec. I have seen LEAN mixtures and WATER cause this as well. But again, there can be a lot more to it. And diesel pump timing is critical.

What causes white smoke from exhaust when idle?

What Causes White Smoke From Exhaust When Idle? If you have white smoke from exhaust when stopping or idling, your combustion chambers engine might get oil inside, which cause them to burn off the exhaust. This will cause white smoke, along with the idle issue.

-Normally means the fuel being injected into the cylinder – is not burning correctly. The smoke may be strong and/or burn your eyes as well. Possible Causes: 1) Engine pump, (diesel fuel pump) timing is out. 2) Fuel starvation to the pump. Air (trapped) in system or being drawn in. 3) Low engine compression. 4) Water or gasoline in fuel.

If it starts with one of the fuel lines to the injector capped, you know that that injector is allowing fuel to pass and not allowing enough fuel pressure to build in the common rail to start the engine. My test showed that the injector on cylinder #4 was allowing the fuel to pass and not allow the pressure to build high enough to start it.

White smoke in a VW diesel is not really any different, when compared to white smoke from an Isuzu diesel. It means the same – engine mixture, efficiency wise, is out of spec. I have seen LEAN mixtures and WATER cause this as well. But again, there can be a lot more to it. And diesel pump timing is critical.

How long does fuel smoke last on a cold start?

The smoke is unburnt fuel which lasts 10-15 minutes on a cold start. As I stated before the glow plugs are working and the vehicle starts and runs normally. I’m asking how this engine controlls a cold start other than the glow plugs.I need a specfic answer on this model truck on what will cause this problem, not a general answer.

Why does my diesel engine have white smoke coming from the exhaust?

Newer electronic diesel engines with common rail injectors simultaneously match the speed of the turbo with the metered flow of diesel fuel into the cylinder. White smoke coming from the exhaust usually points to one point of failure: the injectors. Usually, white smoke indicates that the diesel fuel is not burning correctly.

How can you tell if your Isuzu NPR is leaking?

Remove the radiator cap when the car is cool and look at the fluid level. If the reservoir tank fluid level is at or below the lower mark on the reservoir tank, fill your reservoir tank with a mixture of 50/50 engine coolant and water. You have a leak in the engine cooling system. Leaks can occur in a cooling system several ways.

What kind of fuel smoke does an Isuzu NPR 4 have?

2003 isuzu npr 4 cly turbo diesel unburnt fuel smoke for 15 min and glow plugs and throtle blade works ok – Answered by a verified Technician We use cookies to give you the best possible experience on our website.

What does white smoke mean on an Isuzu diesel?

When working on a diesel engine – reading the different color smoke(s) that can occur – is a valuable diagnostic tool. White smoke in a VW diesel is not really any different, when compared to white smoke from an Isuzu diesel. It means the same – engine mixture, efficiency wise, is out of spec.

What kind of engine does a 2006 Isuzu NQr have?

2006 Isuzu NQR with the 5.2 turbo diesel engine, Aisin automatic transmission, power windows, power locks, tilt/telescopic steering, cruise control, AC, AM/FM CD player and a 14′ box with curbside step door, E-track and a 1600lb aluminum deck lift gate.

What kind of engine does an Isuzu Reefer have?

14′ REEFER Thermo king unit Engine Series 4HK1-TC Engine Capacity 6 Cyl 5.2 L Diesel Isuzu Diesel / 4HK1-TC (Turbo/Intercooler) Brake System Hydraulic GVWR Class 3: 10,001 – 14,000lbs (RY51), Quantity: 1, Transmission Speed: Automatic, Fuel: Diesel.

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Ruth Doyle