My 99 CL has around 126,xxx miles on it. Since I got it in Feb I've cleaned the intake manifold to cure the 0401 code. Replaced t-stat & coolant while at it. It seemed fine then would start rough but would always smooth out (sometimes requiring stepping on the gas to get it to run). So I changed plugs then fuel pressure regulator (prev owner replaced cap & wires). Yesterday it heated up on the turnpike. No visible leaks anywhere & the top hose+ radiator were hot so I let it cool & drove home with the heat on. The temp gauge would float between normal & hot. This morning it started rough again then I noticed white smoke coming from the exhaust. What do you think I'm looking at? Should I just plan on doing the timing, water pump & checking the head gasket? I have no idea if the 105k service was done on this car.
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