There's a ticking noise under my 2002 tahoe. If it is a lifter. Can you tell me what a lifter is? And is that the reason why my service engine light won't go off. Someone told me that it had to do with some box that holds wires under the truck. Is that true?
sounds like a bad lifter, let the dealer fix it as it's under warranty.
A ticking sound and smoke under the hood can be caused by several issues, primarily related to the engine. Common culprits include a failing valve lifter, loose components, or a worn timing belt, which can create a ticking noise. Smoke may result from overheating, oil leaks, or coolant leaks, leading to burning fluids. It's crucial to address these symptoms promptly, as they can indicate serious engine problems.
The only way a bumper can create smoke is is it is trailing on the ground. There are no 'mechanical' parts in a bumper. The end of the tailpipe is probably located right under the bumper and what you are seeing is smoke from the exhaust system. You should have the vehicle checked out as smoke from the exhaust is usually not a good thing.
back struts are bad or exhaust is loose
If you see smoke coming from under the hood of your vehicle this indicates a serious problem. Your car is overheating, this could be because of low coolant in the radiator or another problem with the radiator.
You probably have an oil leak from your motor on to your exhaust system.
Be sure that it's really white smoke. White smoke indicates coolant/water. Blue smoke is oil burning. Black is transmission or brake fluids.Next, is the smoke from the hood or the exhaust? If it's under the hood then maybe you spilled some oil on the engine during the refill. Out of the exhaust, hmmm........
probably answered your own question.
check the cadillidic converter under the car.
Possibly a worn engine and/or gearbox mounting or exhaust mounting
Exhaust Manifold Gasket or low oil.