Anyways,I drive a 1994 GS300,with 135k miles on it, It usually runs like a beast,Like a month ago the radiator had a crack so I replaced a radiator,Recently the Temperature gauge went straight to hot ,so I stop driving it and I heard a hissing sound near the back of the engine,next to the steerin wheel hub,The day after It did the same thing and starting smoking from that area,Turns out there was no water or coolant in my radiator,I filled it up and the problem went away,No Smoke,temperature normal, However I feel like ive lost 100hp and my engine is shaking even at idle,I used to have a G35 sound but now it sounds like its groggling,When I floor it,it like takes forever to get past 4k rpm,Whats going on? Anyone got any ideas?I havent even dared to get it past 45mph,Im wondering if thats even possible now.

 

Just a suggestion: Get a cylinder pressure test to make sure you have no crack in the engine block. Also do a engine flush in case you have a clog in the water jackets in the engine. I had something like that happened with my ford ranger. It was a clogged water jacket. I am sure other members have better idea. Good Luck.

 

Reset the ECU. If you ran it hot enough it probably went into a 'limp' mode.

 

Did you bleed the coolant system after the install ? If not, you still need to do so.

 

Well,I reset the Ecu,Its not in Limp mode,I also Had the old coolant flushed when I switched the radiotor, anyways Im guessing the head gasket is blow ;( Im taking it to the shop ,But I wonder why the radiator ran out of fluid so quickly? There shoodnt have been a crack,It was brand new,and I checked it a week earlier,it was full

 

Does the oil look normal or is it kind of a milky white color?