# Chevy Misfires **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [December 8, 2007, 2:39pm UTC](https://community.cartalk.com/t/chevy-misfires/8104 "2007-12-08T14:39:44Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![chadhenry](https://avatars.discourse-cdn.com/v4/letter/c/aeb1de/32.png) [@chadhenry](https://community.cartalk.com/u/chadhenry)\ **Post date:** [December 8, 2007, 2:39pm UTC](https://community.cartalk.com/t/chevy-misfires/8104/1 "2007-12-08T14:39:44Z")
I have a 2000 Chevy Silverado 1500 4.8 liter with 96,000 miles. I have severe misfires on cylinders 1, 3, 5. I have replaced all wires and plugs and replaced the ignition coils on 1, 3, 5. I still have problems getting the engine to fire (it turns over fine) and when it is running I get several hundred to several thousand misfires on those cylinders. Any idea what else could be wrong? ---
**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\ **Post date:** [December 8, 2007, 2:44pm UTC](https://community.cartalk.com/t/chevy-misfires/8104/2 "2007-12-08T14:44:38Z")
Possibly a bad ignition module. This module converts the signals from the computer to tell the coils when to fire. ---
**Author:** ![chadhenry](https://avatars.discourse-cdn.com/v4/letter/c/aeb1de/32.png) [@chadhenry](https://community.cartalk.com/u/chadhenry)\ **Post date:** [December 8, 2007, 2:47pm UTC](https://community.cartalk.com/t/chevy-misfires/8104/3 "2007-12-08T14:47:19Z")
Any idea the cost and if there is a way to test it without replacing it? ---
**Author:** ![chadhenry](https://avatars.discourse-cdn.com/v4/letter/c/aeb1de/32.png) [@chadhenry](https://community.cartalk.com/u/chadhenry)\ **Post date:** [December 8, 2007, 3:28pm UTC](https://community.cartalk.com/t/chevy-misfires/8104/4 "2007-12-08T15:28:23Z")
Could it possibly be the fuel pressure regulator?