# 2011 Chevrolet Silverado 3500HD - Fuel pump

**URL:** <https://community.cartalk.com/t/2011-chevrolet-silverado-3500hd-fuel-pump/194388>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [February 16, 2024, 1:15am UTC](https://community.cartalk.com/t/2011-chevrolet-silverado-3500hd-fuel-pump/194388 "2024-02-16T01:15:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![garyvo](https://avatars.discourse-cdn.com/v4/letter/g/a6a055/32.png) [@garyvo](https://community.cartalk.com/u/garyvo)\
**Post date:** [February 16, 2024, 1:15am UTC](https://community.cartalk.com/t/2011-chevrolet-silverado-3500hd-fuel-pump/194388/1 "2024-02-16T01:15:50Z")

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cp4 fuel pump failer

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**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [February 16, 2024, 4:37pm UTC](https://community.cartalk.com/t/2011-chevrolet-silverado-3500hd-fuel-pump/194388/2 "2024-02-16T16:37:57Z")

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> [@garyvo](#):
>
> cp4 fuel pump failer

Well with the Very Limited info you gave us, I will leave you with this…

> **[2011-2016 Duramax LML CP4 High Pressure Fuel Pump Failure Kit – Bosch® New |...](https://www.injectorsdirect.com/product/lml-contamination-kit/?gad_source=1&gclid=CjwKCAiArLyuBhA7EiwA-qo80CDMP5tLLS6KwWCXChNrks6dqkntmAlk76aR0oYqfkkAu_HA2pMotRoC66gQAvD_BwE)**
>
> 2011-2016 Duramax LML CP4 High Pressure Fuel Pump Failure Kit - Bosch® New Shipping Note: Standard shipping on this kit is Ground due to size & weight. Expedited shipping options are available (prices calculated based on delivery address) and...

> **[What Is CP4 Injection-Pump Failure?](https://www.motortrend.com/how-to/what-is-cp4-failure/)**
>
> CP4 injection pumps are the weak links in some late-model diesel fuel systems. Here are insights on what happens when they break, and ways to prevent it from happening.