Why does truck run roughly when idling and blows white smoke when driving?

Hi,

Please check your engine and battery while your car is running. Please wear goggles as you don't want the contents of the smoke getting in your eyes. This will help you find what item or items are shaking and smoking in your car.

Thank you.

White smoke is indicative of burning coolant. Gray smoke is burning oil.

Have a compression test done which will often give an indication of evolving head gasket problems. If the coolant level is going down, and there's no obvious leak, its a head gasket.

You have a failed head gasket

Major repair

Hope you didn't think the stop leak was
a genie in a bottle,never need any product
in any vehicle,just the proper repair

White smoke was coolant ,should have known that

water getting into cylinders cause of your white smoke

You might want to watch your coolant level. Open your radiator, fill it to full, and start the truck. If bubbles form, you might have a broken head gasket. Also, check to see how your water seperator and fuel filter are looking. But it sounds kind of like a head gasket.

Try replacing the EGR valve .

You've got a blown head gasket, sounds small at this point, but it will get bigger. If you want to save this engine I would stop driving it.

Sorry to inform you of the bad news but the white smoke is engine coolant burning off and the rough running condition is also associated with coolant leaking into the combustion chambers.This will be a head gasket repair, basically a head job where you will need to machine the heads down and install new gaskets from the heads up.Get back to me if you have any more questions, thanks and I hope I could help!!!

If you are sure it is white smoke and the car overheats or looses water,The head gasket is bad.
Or It's valve seals or rings smokes (but the smoke would have a blueish tint)