The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

**kwmech** · 10-03-2022, 11:34 AM

I don't think there is anything wrong with it. My 91 does the same thing. As the water begins to heat up, it is going to expand and create pressure. My personal issue is when I tow. The stock radiator can barely keep up when I hit a hill

10-03-2022, 11:34 AM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,395	Re: Strange Cooling Issue on 5.7 engine! I don't think there is anything wrong with it. My 91 does the same thing. As the water begins to heat up, it is going to expand and create pressure. My personal issue is when I tow. The stock radiator can barely keep up when I hit a hill