get help right away, sounds like timing belt broke from what you said, bad things can happen to motor when this happens. Piston bad, slapping cylinder wall, bad wrist pin.
The are a few reasons why a vehicle could make a clanking noise upon cranking. The oil level could be low. A hydraulic lifter could be stuck causing the engine to flood. The spark plug wires could be crossed. It could even been a weak battery.
The friction point when driving a vehicle is the point at which the clutch engages with the engine and the transmission, allowing power to be transferred from the engine to the wheels. This is a critical point for smooth gear changes and controlling the vehicle's speed.
Depends on what vehicle that engine is driving and the fuel mileage of said vehicle.
go see a mechanic
The transmission on a SAAB 900 is mounted directly on the bottom of the engine. That clanking is likely coming from a broken tooth on a gear.
"No engine braking" means that the driver should not rely on the engine to slow down the vehicle, but instead use the brakes to control speed.
Sounds like one or more rods in the engine broke.
the engine for my mom's car sounded weak
Both. It has motors driving the cooling fan and blower for the heater and A/C. It has an engine driving the wheels and propelling the vehicle down the road.
The driving wheel of a vehicle is typically carried by the axle, which connects the wheel to the vehicle's chassis and allows it to rotate. The axle transmits power from the engine to the wheels, enabling movement. Additionally, the suspension system supports the weight of the vehicle and helps maintain stability and comfort during driving.
the engine will take longer to get to normal operating temp. and the water temp could fluctuate while driving
If the engine running you hear the engine rev up. Describe noise, is it when in park or when driving? Does it hurt the performance of the vehicle?