mjma
NAXJA Forum User
- Location
- Rehoboth, MA
96 XJ 4.0 auto with AC.
A while back a few times I pulled the codes 12, 21, 55 coolant temp sensor I believe. I got the part but the check engine light wasn't coming on and I was too lazy to put it in. When reading a post somewhere about which coolant temp sensor (the manifold one or the thermostat housing one) was hooked to the computer, I got kinda confused I think. Now I'm not sure which one that this code is indicating is out of range.
So, which one should I change??
A while back a few times I pulled the codes 12, 21, 55 coolant temp sensor I believe. I got the part but the check engine light wasn't coming on and I was too lazy to put it in. When reading a post somewhere about which coolant temp sensor (the manifold one or the thermostat housing one) was hooked to the computer, I got kinda confused I think. Now I'm not sure which one that this code is indicating is out of range.
So, which one should I change??