i replaced my heater core, put all the panels back on, and ran into two problems.
1. there is no heat, i brought the engine up to running temp and there was no heat. what could be causing this problem?

2. i have no lights. my parking lights work, but my actual driving lights don't. what could be causing this? i don't think i missed a connection because there is no loose wires.

 

I think that they share a ground! Check the wiring diagram. ide just double check if it is right. sometimes even the best of us make mistakes! make sure that your grounds are tight, and are making good contact. You didnt say weather the blower motor/ heater core blows, but theres no heat... or if none of it works at all! If you have the wiring diagram, and there is a shared ground than turn on the other components or check with a DMM (Multimeter) to make sure its getting the right voltage, if any. Even if the wires arnt loose, there could be an "open" inside the wire causeing not enough current, or none at all to get to those components!

 

there is air blowing out when i have it on. but yeah it's not heat at all lol. i'm gonna pull off some of the dash again today and see if all my connections are tight and make another search fort loose wires. thanks for the help

 

Your welcome. Always glad to help. If you ever need help again feel free to message me personally if you want. Let me know what you find, and if you were able to fix things.