Quote:
Originally Posted by Roadster
Had a new development occur today as I was headed to the WAZOO New Years luncheon. Got an early start and everything was going well......until I looked at the coolant temp on the highway.....I noticed the temp was at 159-160* @70mph and above....just hovering there....so I loop around to go back home.....not wanting to chance the over 2 hour drive each way with what may be a sticking thermostat.
Although the outside temp here is 19-21* and I did the TB coolant bypass months ago....I don't think that it have a 40* swing effect on the temp.....
Now getting off the highway and back on local roads......the temp now goes up to operating range.....200* or higher when stopped for a light....but then still drops to 196* and lower to about 187* when moving....and through all of this the engine is running fine.....and the idle remains to be perfect with each stop..
Got back home fine.....now to figure out the problem......  |
Tom,
I am not certain that anything is really wrong.
On 50 degree mornings, my car runs in the 170's from home almost to the shore, over 50 miles. Upper 70's when stopped; lower, almost 169 when doing 75.
No holes drilled, and a 180 stat.
The past few days have been in the teens and 20's. Flying along in those temps could keep you down where you experienced.
Don't go crazy yet.
Wait and see how it is when it is at least 50-60 outside.
We have been working on a 71 LT-1.
Left it idling for half an hour; 130 degrees.
Changed the stat from 160- 180 as we had no idea how old the one in there was.
It has come up to 150, but no higher, all with a verified gauge.
Some cooling systems simply are very efficient.
Merry Christmas and Happy New Year to you and your wife!
Stop down sometime!!!
Marty