FredFredburgerDiscussion starter. 34 posts 路 Joined 2015. #1 路 Feb 27, 2015. My car is a 2004 Suzuki XL-7. I have had overheating problems in the last few months and need help. I changed the radiator cap, and installed an oem thermostat, the car would maintain the temperature on the highway but in the city it would spew out the
I IsraelThompson Discussion starter. 31 posts 路 Joined 2009. #1 路 Aug 27, 2011. Hi all, My 2009 started tripping a P0420 code yesterday and the manual says it's described as a "Catalyst System Efficiency Below Threshhold (Bank 1)" issue. I heard that it was either a bad oxygen sensor or a catalytic convertor that needed replacing. donna711Discussion starter. 13 posts 路 Joined 2014. #4 路 Aug 28, 2014. intermittent over heating. Thank you both for your help - I really really appreciate both your input. This morning, we checked the coolant level and put more in. The new radiator cap was put on, as in the past, this seemed to solve the problem. FLnB.