Why does my LB7 smoke at idle?
White smoke from an LB7 Duramax engine often indicates faulty injectors. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector.
What does white smoke from exhaust mean on a diesel?
White exhaust smoke If your exhaust smoke is white, this is a reason for concern in a diesel engine vehicle. White exhaust smoke means fuel is not burning properly.
How much does it cost to replace injectors on LB7?
How much does it cost to replace injectors on LB7? The total cost to have a mechanic replace 8 injectors on an LB7 Duramax can range from $4000 – $5000 CAD, depending on what other work is performed at the same time.
How hard is it to replace LB7 injectors?
Unfortunately, Duramax injectors are both expensive and difficult to reach in the engine compartment for replacement, which prompted GM to extend its injector warranty to 200,000 miles. The LB7 is otherwise a very reliable engine.
How do I know if my injector is bad on LB7?
There is a multitude of symptoms your truck will experience if the injectors are going bad. One of the first signs we see are excessive smoke/haze. You will notice your truck billowing out a little more smoke than usual or hazing at idle. Another issue you may notice is high EGTs.
What kind of exhaust pipe does Peterbilt use?
PB-13055Y 14-13055 Peterbilt 379 Aluminized Exhaust Y-Pipe PB-13055Y # of Bends 3 Degree of Bend 22/22/40 Deg. Exhaust Pipe Length 51 1/2 in. Inlet Configuration (2) 5 in. I.D. Pipe Connection Inlet… PB6-13056CID 14-13056 6″ ID to 5″ OD Peterbilt 379 Chrome Elbow PB6-13056CID What other exhaust parts will I need?
Can you see white smoke from a diesel engine?
White smoke in diesel engines is usually the last color you want to see, particularly on gas cars. If the smoke is thin, and goes away relatively quickly, than it is merely condensation. However, thicker, longer lasting smoke is a much larger headache.
What kind of smoke comes from a diesel truck?
Let’s talk about the different colors of diesel exhaust smoke, their causes and solutions. Gray or Blue Smoke from Diesel Exhaust. Newer, low mileage truck owners can skip this paragraph, but many of us like to have a worn out beater truck laying around, or maybe your teenager bought their first car from a not-so-honest guy.
What to do if your diesel engine is smoking?
Diesel Extreme contains powerful detergents and dispersants to removes water, bacteria and break down sludge, completely cleaning your entire fuel system, from the tank to the injectors. Another fix might include adding an automatic pre-heater, or unfortunately the entire replacement of your engine depending on the issue.