Review on 🔄 RC98 Coolant Reservoir Cap – Radiator Surge Tank Cap Replacement for Chevy GMC Duramax: 1999-2006 Silverado Sierra, 1999-2012 Malibu, 2000-2006 Tahoe Yukon, 1999-2005 Grand Am, and More by Besim Kahsar

I had high hopes for them, they go well with the 2001 Malibu. 2 weeks of work and suddenly the car overheated. Why? The lid couldn't withstand the pressure. I wanted to remove the cover from the hydraulic tank and it fell apart into pieces visible in the photo. Vehicle was overhauled with lapped heads, new head gaskets, new head bolts, LIM gaskets, exhaust gaskets, UIM gaskets, new T-Stat, coolant temp. Sensor, water pump, new spark plugs and wires, hoses, coolant etc. Everything worked great until the cap stopped holding pressure causing the coolant to boil and the engine to overheat. Lid. Still within the returns window but they want me to ONLY return it via an approved UPS store over 20 miles away AND they want me to pay for shipping back to them. Be warned if you buy this.