Are diesel trucks smog exempt?
Are diesel trucks smog exempt?
Diesel Smog Test Exemption: The DMV does not require a California emission inspection (smog check) for the following types of vehicles: Any diesel car or diesel pickup truck which is 1997 model year or older. Any diesel truck which weights over 14,000 GVWR.
How often do I have to smog my diesel truck in California?
California. Currently, smog inspections are required for most vehicles every two years for registration renewal. Diesel Vehicles: All diesel vehicles 1998 model or newer or an GVWR of less than 14,000 lbs must undergo smog inspections.
Why does my Duramax engine have white smoke at idle?
A common issue with the GM 6.6L LB7 Duramax engine is white smoke at idle. Worn and damaged injectors are often the cause however there are other causes and considerations that should be looked at prior to injector replacement. 1. Remove IGN 1 relay. 2.
Are there any flaws in the Cummins Duramax?
Still, and just as we exposed the shortcomings of the almighty Cummins, the Duramax isn’t without its flaws—some of them catastrophic. For example, did you know the injection pump on the LML version is prone to coming apart and wrecking the entire high-pressure fuel system when it does?
How can I Keep my Duramax Diesel pump healthy?
However, there are measures you can take to keep the pump happy and healthy, the first being to always buy your diesel from a high-traffic, reputable filling station that’s known to dispense good, clean fuel. Second, always change the fuel filter at or before the recommended service interval.
What to do if your Duramax has a cold start?
Perform a glow plug system and intake air heater check even if there is no complaint of a cold start problem. 1. Engine compression. 2. Dilution of the oil with fuel. 3. Engine coolant temperature sensor. 4. Rail pressure sensor. 5. Proper fuel supply to the high-pressure pump.
A common issue with the GM 6.6L LB7 Duramax engine is white smoke at idle. Worn and damaged injectors are often the cause however there are other causes and considerations that should be looked at prior to injector replacement. 1. Remove IGN 1 relay. 2.
Perform a glow plug system and intake air heater check even if there is no complaint of a cold start problem. 1. Engine compression. 2. Dilution of the oil with fuel. 3. Engine coolant temperature sensor. 4. Rail pressure sensor. 5. Proper fuel supply to the high-pressure pump.
Where does the coolant go in a Duramax?
1. Coolant may enter the cylinder from a damaged seal between the fuel injector sleeve and the cylinder head. The injector sleeve is often dislodged during an injector removal. 2. Remove the glow plugs and the IGN 1 relay and pressurize the cooling system to 15-17 PSI. 3.
