needlenose
Newbie
So my wife pulled another wonder on me. The fixed idler pulley locked up and wrecked the belt. She noticed that the Suburban suddenly went "hard to steer" so she pulled over and left it running(to keep the kids cool) while she inspected what was wrong and marveled at the pretty green fountain spewing from the engine bay. She then decided that her experience did not warrant her the skills necessary to determine what the problem was, so she called me. After learning she was stranded and why, I found out it was still running and told her to immediately shut it off. She said the gauge was at the large hash mark between 210 and 260 (240?)when she shut it off and told me not to worry it was "still a long way from the red mark.". I have no idea how accurate those factory gauges are.....
So I repaired it, got it home, and am still in the process of bleeding out the system. I have random bubbles, but it's still hard to tell if it's cylinder pressure or just trapped air.
How hot would a 5.7 typically have to get before the heads lift? It idled on the side of the road for several minutes before she shut it off. It displaced about 1gal of coolant when it overheated.
So I repaired it, got it home, and am still in the process of bleeding out the system. I have random bubbles, but it's still hard to tell if it's cylinder pressure or just trapped air.
How hot would a 5.7 typically have to get before the heads lift? It idled on the side of the road for several minutes before she shut it off. It displaced about 1gal of coolant when it overheated.