The CP4 fuel pump can be problematic in the long term which is why you'll want to know if your vehicle has one. Here's how to ...

The black ’15 Chevrolet Silverado 2500HD work truck we encountered at Dunks Performance in Springfield, Oregon, is the typical calling card of a successful turf business. It is used every ...

Unfortunately, the LML Duramax experienced serious problems when the CP4 pump malfunctioned, with issues like contaminants flooding the fuel system. Repairs following a pump failure could include ...

If your truck is powered by an LML Duramax or 6.7L Cummins, you could replace the CP4 pump by using a CP3 conversion kit from S&S Diesel Motorsport. While those conversion kits can cost upward of ...

The lawsuit affects customers who own Chevy Silverado and GMC Sierra pickup trucks equipped with the 6.6L V8 LML turbodiesel Duramax engine. According to the lawsuit, the Bosch CP4 fuel pump on ...

Back in May 2023, GM Authority reported that a lawsuit regarding Duramax fuel ... with the 6.6L V8 LML turbodiesel Duramax engine are dangerous to operate because the Bosch CP4 pumps can shut ...

That's correct $12k do your do diligence on 2011-2016 GM duramax..funny not one commented ... Look online post for this CP4 failure issue. Very clean and reliable vehicle And have not had any ...

The proposed settlement covers certain 2011-2016 truck models with Duramax diesel 6.6L V8 LML engines that were allegedly equipped with "unreasonably fragile" high-pressure fuel injection pumps ...

13, 2024. To be eligible, owners must have purchased a 2011–2016 Chevrolet Silverado or GMC Sierra with a 6.6L Duramax diesel engine and a Bosch CP4 high-pressure fuel pump from a GM ...

If you have this car, just know that you might be eligible for a juicy check thanks to a class action lawsuit that took place last year. The lawsuit’s resulting settlement means some drivers ...

Owners of some Chevrolet and GMC trucks could be eligible for payments of up to $12,500 as part of a $35 million settlement related to defective fuel injector pumps. The settlement covers 2011 ...

Nevertheless, according to Motor Trend, GM built over 600,000 LML Duramax diesels during the engine's lifespan. GM switched from a CP3 pump used in previous engine iterations to the CP4 in the LML ...