How do I fix my Blowby Cummins?

Engine blowby can be reduced by following 2 steps : Step 1 Simply add FTC Decarbonizer in with the diesel . Step 2 Use Flushing Oil Concentrate when completing an oil change. “To fix engine blow by, FTC Decarbonizer is added to the diesel at each fill, and you literally just drive the engine clean!

What does it mean if a Cummins has blow by?

Blow-by is just that…. when a “gap” exists between the cylinder wall and the piston rings the exhaust gases escape into the crank case. The more internally worn an engine becomes the more excessive the blow-by.

How do I know if my diesel truck has Blowby?

How to Identify and Test for Blow-By. First, rough idling and misfiring can indicate there is a problem. However, one of the tell-tale signs of excessive blow-by is white smoke billowing from the oil-fill tube or opening on a valve cover. To check this, set the oil-filler cap upside down on the tube or opening.

What does rough idle mean on a Cummins Ram?

The voltage will swing back and forth from the low 11s to mid 13s as the grid heater cycles. The rough running/chugging is simply the engine’s attempt to maintain idle speed while the batteries are being pounded by the massive elect load.

What causes a diesel engine to have rough idling?

As diesel engines age, the fuel injection system can start to “gum up”, and the injector tips begin squirting instead of misting. The injection timing can get out of whack. Wear and tear on the piston rings and cylinder walls result in lost combustion. Is the smoke coming out of the exhaust pipe blue?

What causes a diesel engine to blow by?

Blow by occurs in many diesel engines. The air/fuel mixture at times finds its way into the crankcase. This builds up the pressure in the crankcase, and you will start experiencing a decline in engine power. If the problem is not fixed, the increased pressure will destroy other engine parts.

What causes white smoke from a diesel engine?

In this case, the engine is probably experiencing rough idling both when it is cold and hot, and the problem will come and go. Common causes of white smoke are low cylinder compression, improper injector pump timing, and problem with the fuel injection system.

Why does my diesel engine blow by all the time?

As the engine heats up, the piston expands, and blow by disappears under normal operation. This is considered typical cold engine blow by, and it is unavoidable. As the diesel engine gets older, the cylinder walls wear out by constant piston and piston ring scraping. Over time, the cylinder bore becomes bigger by this constant scraping.

Why does the oil blow by when the engine is cold?

If they designed the piston for a snug fit when the engine is cold, the piston would seize inside the cylinder when it heats up due to thermal expansion. An under-sized piston leads to blow by when the engine is cold.

Can a faulty FCA cause a Cummins to stop?

A faulty FCA can cause a variety of issues, from rough idle, low power, a deviation from desired rail pressure, and even a no-start condition. It’s a pretty common failure, and luckily a new FCA is very easy to install on a Cummins, and it’s also affordable at a hundred and thirty bucks.

Is the 5.9 Cummins Engine a good engine?

If you don’t consider the fuel system, the 5.9 Cummins is a very reliable engine. The internal parts like the pistons, rods, and crank will last for a zillion miles even with some abuse. The turbos are very responsive and will give a long service life, but they don’t have a tremendous horsepower potential.