# Engine miss, weak spark, now what? **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [August 15, 2007, 12:47am UTC](https://community.cartalk.com/t/engine-miss-weak-spark-now-what/3129 "2007-08-15T00:47:07Z")\ **Posts on this page:** 2\ **Page:** 2
**Author:** ![DARTMAN69](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/dartman69/32/29_2.png) [@DARTMAN69](https://community.cartalk.com/u/DARTMAN69)\ **Post date:** [August 16, 2007, 3:44pm UTC](https://community.cartalk.com/t/engine-miss-weak-spark-now-what/3129/21 "2007-08-16T15:44:02Z")
Keith: First if you want to say that it is not one coil you would have to say it is 4 coils packaged in a module unit. Second this truck does not use a waste spark system. Each terminal on the coil pack feeds 1 cylinder only. Each tower fires one time per engine revolution. They only fire on the compresion stroke. ~Michael ---
**Author:** ![barky2](https://avatars.discourse-cdn.com/v4/letter/b/45deac/32.png) [@barky2](https://community.cartalk.com/u/barky2)\ **Post date:** [August 16, 2007, 4:15pm UTC](https://community.cartalk.com/t/engine-miss-weak-spark-now-what/3129/22 "2007-08-16T16:15:22Z")
Thanks again for the help that I received here. I replaced the coil pack last night, wire, and plug and my truck is running much better now. I do plan to replace all of the other plugs and wires, but did not have time to do all of them last night. It’s the only vehicle that I have running right now so my main objective was just to be able to use it again. I regularly bicycle to work, but today would have been 4 days in a row if I didn’t get the truck running and my legs couldn’t take another day, plus it’s going to be 100+ here today. My wife had to laugh at me, I have 2 cars and a motorcycle, but the only thing running was my bicycle. Joe [Previous page](https://community.cartalk.com/t/engine-miss-weak-spark-now-what/3129.md?page=1)