Temperature switch replaced and appears to have corrected the issue. Idle is back to normal. Minimal coolant loss.
I may have corrected another issue unintentionally. In my research, I discovered that difficult hot starts can be the result of a failing temp switch. It’s described as cold starting just fine, drive around a while and shut it down and try to hot start and it struggles or even fails to start. This was the reason why I installed the starter relay, and while the relay made a difference, it didn’t really 100% solve the issue.
Well, after installing the new temp switch, I let the engine get up to temp then shut it down. Cranked it again with the hot engine and it fired right up, better than the cold start. I’m not sure if there’s a difference between a hot start after a few minutes of idling vs a hot start after 30 minutes or more of highway driving, but it’s a good sign. I’ll try to test drive it more tomorrow and see if there’s any difference.
In the very least, the high idle appears to be fixed.
I may have corrected another issue unintentionally. In my research, I discovered that difficult hot starts can be the result of a failing temp switch. It’s described as cold starting just fine, drive around a while and shut it down and try to hot start and it struggles or even fails to start. This was the reason why I installed the starter relay, and while the relay made a difference, it didn’t really 100% solve the issue.
Well, after installing the new temp switch, I let the engine get up to temp then shut it down. Cranked it again with the hot engine and it fired right up, better than the cold start. I’m not sure if there’s a difference between a hot start after a few minutes of idling vs a hot start after 30 minutes or more of highway driving, but it’s a good sign. I’ll try to test drive it more tomorrow and see if there’s any difference.
In the very least, the high idle appears to be fixed.
