Engine bay is VERY cool while the temps show VERY high sometimes..
The reason i think its the ECT sensor...
It shoots up very fast (sometimes)... and then goes down very fast (sometimes) It has hit the Main bar below the 260*... almost "overheating"
Not stupid fast like the Gas gauge on a 4.3 blazer (for those of you who know that electrical LOL)
But i couldnt fathom a cast iron block heating up that fast then cooling that fast.
180 tstat
full of coolant
radiatior fans ARE working
When i first got it.. the gauge never really even went above the 160* mark.. now its all over the place.
Try the ECT first?
The reason i think its the ECT sensor...
It shoots up very fast (sometimes)... and then goes down very fast (sometimes) It has hit the Main bar below the 260*... almost "overheating"
Not stupid fast like the Gas gauge on a 4.3 blazer (for those of you who know that electrical LOL)
But i couldnt fathom a cast iron block heating up that fast then cooling that fast.
180 tstat
full of coolant
radiatior fans ARE working
When i first got it.. the gauge never really even went above the 160* mark.. now its all over the place.
Try the ECT first?