Skip the auto shop - Our mechanics make house calls

Q: My car won't go up steep hills

asked by on

My vehicle won't go up a steep hill. If i try it stops and starts to smell like gas. I have changed the spark plugs and put in a new air filter. I have also changed 7 of the 8 ignition coils. What do you recommend?
My car has an automatic transmission.

Hello. Going up a hill is considered "extra load" on the engine. Issues with handling this extra load are typically due to poor engine performance. Starting with the spark plugs was a good idea. When you change the ignition coils, always change all of them. Have you preformed a fuel pressure test? You may have too much, or too little fuel being pumped into the cylinders. Inspecting your pump, filter, and injectors would all be a good idea. Although no engine warning lights have illuminated, the computer may still have codes set that will help with diagnostics. Specifically if there is a sensor or electrical issue. You may want to have the vehicle scanned, which can be done at most auto parts stores.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: No electrical power to fuel pump

This sounds like you may not have any power going to the fuel pump relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump your...

Q: Electrical system issues and transmission problems

Hello. If all of these issues started at the same time then it is an electrical issue. From what you are saying it sounds like you have a bad ground connection on the negative battery cable or a failing ignition...

Q: Passenger's side door not closing

This usually happens when the locking mechanism in the door jam are prematurely when locked manually. Holding the door handle open and pushing down on the black latch located in the jam will usually solve this issue. If you are...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.