[jwinkler]

I had the car out last weekend (after draining and filling the cooling system). All seemed well until close to home the temp started creeping upward. It was a cooler part of the day, and until then the car had held steady at ~190 prior to that.

I was hoping it might have something to do with the system not being full, so today I was going to top it off and discovered I hadn't secured the radiator cap - it was on enough to get past the safety(?) detent, but I had not tightened it all the way.

The ADQ - if the cap isn't keeping pressure in the system, could that lead to the overheating?

Thanks,

JLW