I’m having a frustrating problem that I THINK is likely electrical. This is a very consistent (intermittent) problem. (Stick with me)
1999 TJ 4.0 Auto
Cold - ALWAYS starts, no problem.
Once at normal operating temp, and running, it will run all day with NO problem at all.
In between, I have a seemingly random stall/no start issue. Maybe a minute after starting, maybe 10, it WILL stall. It might start right back up, or it might be anywhere up to 5 minutes of no start. It will do this maybe once, maybe 3-4 times. It MIGHT stall out, but start back before the engine quits turning. (Tachometer always drops to 0 when it’s not firing, and then back up when it starts firing again)
Once I go through this a while, it eventually gets to a point that it is good and warmed up, and runs fine. It WILL NOT stall again until I stop and let it cool down, and then it WILL repeat the same process all over again.
I’m working on trying to troubleshoot voltages and resistance at various points, but during the trouble points, it SEEMS so random and intermittent that it’s hard.
Any ideas?
1999 TJ 4.0 Auto
Cold - ALWAYS starts, no problem.
Once at normal operating temp, and running, it will run all day with NO problem at all.
In between, I have a seemingly random stall/no start issue. Maybe a minute after starting, maybe 10, it WILL stall. It might start right back up, or it might be anywhere up to 5 minutes of no start. It will do this maybe once, maybe 3-4 times. It MIGHT stall out, but start back before the engine quits turning. (Tachometer always drops to 0 when it’s not firing, and then back up when it starts firing again)
Once I go through this a while, it eventually gets to a point that it is good and warmed up, and runs fine. It WILL NOT stall again until I stop and let it cool down, and then it WILL repeat the same process all over again.
I’m working on trying to troubleshoot voltages and resistance at various points, but during the trouble points, it SEEMS so random and intermittent that it’s hard.
Any ideas?