# Problems with my truck **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [January 22, 2020, 12:12pm UTC](https://community.cartalk.com/t/problems-with-my-truck/157023 "2020-01-22T12:12:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Adidasking4205\_162411](https://avatars.discourse-cdn.com/v4/letter/a/c5a1d2/32.png) [@Adidasking4205\_162411](https://community.cartalk.com/u/Adidasking4205_162411)\ **Post date:** [January 22, 2020, 12:12pm UTC](https://community.cartalk.com/t/problems-with-my-truck/157023/1 "2020-01-22T12:12:05Z")
I have a 96 chevy k1500 I just replaced the transmission and last night the spark plugs I pulled them out one at a time to make sure I didn’t get them switched up but it will idle just fine but as soon as I drive it down the road it has one hell of a back fire and won’t stay running please I’m up for any suggestions and help I’m moving out of state soon and need to get my truck running! ---
**Author:** ![RandomTroll](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/randomtroll/32/12184_2.png) [@RandomTroll](https://community.cartalk.com/u/RandomTroll)\ **Post date:** [January 22, 2020, 1:30pm UTC](https://community.cartalk.com/t/problems-with-my-truck/157023/2 "2020-01-22T13:30:08Z")
When my pickup backfired it was because the mixture was too rich, a consequence of the choke not working. I don’t think it’s the transmission. That it idles properly should mean you have the spark plugs attached correctly. ---
**Author:** ![Adidasking4205\_162411](https://avatars.discourse-cdn.com/v4/letter/a/c5a1d2/32.png) [@Adidasking4205\_162411](https://community.cartalk.com/u/Adidasking4205_162411)\ **Post date:** [January 22, 2020, 1:38pm UTC](https://community.cartalk.com/t/problems-with-my-truck/157023/3 "2020-01-22T13:38:27Z")
I know it’s not the transmission it’s a brand new one from monster‘s [transmissions.com](http://transmissions.com) I did plug-in an O2 sensor that wasn’t plugged in all the way I might have it plugged into the wrong one So I’ll check that too and the spark plugs make sure they’re connected properly