first thing is find out what the check engine " light is telling you, Code PO????. then you will get an idea to your question .
2nd answer:
I would first suspect low fuel pressure.
Not using the engine brake while driving on steep downhill slopes can lead to increased wear on the vehicle's brakes, reduced braking effectiveness, and potential overheating of the brakes, which can result in brake failure and loss of control of the vehicle. It is important to use the engine brake to help control speed and reduce strain on the braking system when driving on steep downhill slopes.
You can save gas driving a steep hill by driving the car at a lower RPM.
Just came from a mechanic. Check to see if you have a bad ignition cyliner. This may help. must brake, going up / down steep hill too quickly
Downshift a gear until you have sufficient power without overevving engine.
Downshift to the next lower gear. If it is very steep, go down another gear. Make sure you don't over-rev the engine though.
Most likely clogged fuel filter. Replace filter
Using a lower gear while driving on steep inclines provides better control over the vehicle, increases engine power, and reduces strain on the brakes. This can help prevent the vehicle from rolling back and improve overall safety while driving uphill.
Applying the clutch while driving down a long steep slope can lead to a loss of control and increased wear on the vehicle's brakes. It disengages the engine from the wheels, removing engine braking, which is crucial for maintaining control and slowing down safely. This can result in overheating the brakes, reducing their effectiveness, and potentially leading to brake failure. Instead, it's better to use a lower gear to utilize engine braking effectively.
is the engine oil low? maybe its flowing to the back of the sump and away from the pick up when you go up the steep hill.
For driving on steep hills as well as slow-speed driving, in a parade for example.
When driving a car with an automatic transmission up a steep hill it is not necessary to shift gears. The car will do that on its own when necessary.
It sounds like the thermostat is opening up late causing the engine to almost overheat before it opens. Replace the thermostat.