# 03 Chevy Silvarado 1500 4.3L V6 engine problems

**URL:** <https://community.cartalk.com/t/03-chevy-silvarado-1500-4-3l-v6-engine-problems/14871>\
**Category:** Maintenance/Repairs\
**Created:** [June 5, 2008, 3:22am UTC](https://community.cartalk.com/t/03-chevy-silvarado-1500-4-3l-v6-engine-problems/14871 "2008-06-05T03:22:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tjberg](https://avatars.discourse-cdn.com/v4/letter/t/41988e/32.png) [@tjberg](https://community.cartalk.com/u/tjberg)\
**Post date:** [June 5, 2008, 3:22am UTC](https://community.cartalk.com/t/03-chevy-silvarado-1500-4-3l-v6-engine-problems/14871/1 "2008-06-05T03:22:55Z")

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I have a 03 silverado with a v6 and when i accelerate to around 2500 rmp, the tach starts going crazy and i hear a clicking noise coming from underneath the vehicle. The thing only acts up after the engine warms up, it has no problems when its cold. I have replaced the cam sensor, the plugs and wires, the distributor, dist. cap, dist. rotor. What else could be causing this?