Well I would like some help figuring out what is going on with my Chevy Trax. Just a quick recap of the things I have done, and I am not just a part changer, however these parts were bad or worn out and needed replacement. I have replaced the catalytic converter, thermostate housing with new thermostat, installed a pcv bypass kit, valve cover, turbo charger. Now the problem I am experiencing is the car is getting hot after driving for a while causing the overheating symbol to come on in my dash and this is running with my Air Conditiong on and the radiator cooling fan running, when I run without the a/c the fan does not come on at all, which I have ordered both of the cooling sensors to replace them. I have used my scanner on the car and it is showing the radiator cooling sensor not increasing or decreasing but a degree. I started the car up this morning and it started missing badly on number 1 cylinder and number 2 cylinder not as bad, however when I increased the rpm the miss would go away. Also when looking under the hood with this problem I herd a hissing sound like a vacuum leak and found it to be coming out of number 1 fuel injector, not sure if it is vacuum or pressure, but when I pushed down on the injector the sound would stop. I have been leaning toward this being a head gasket or head or block, just not sure. Any help on this matter would be appreciated.

 

Welcome to the forum. Moving to the Trax section of the forum where you will get more views.