Skip the auto shop - Our mechanics make house calls

Q: My 96 Jeep Cherokee Classic does not start up when it has been sitting for hours or overnight

asked by on

My 96 Jeep Cherokee Classic does not start up when it has been sitting for awhile or overnight!? When it does start it runs rough and you have to feather the throttle and stalls when you get off of gas! To get it started you have to push gas pedal to floor!! But once it warms up no problem!?? Please help! Thanks

My car has 78655 miles.
My car has an automatic transmission.

A: The symptoms you describe can be caused b...

Hello.

The symptoms you describe can be caused by a wide variety of issues. Issues with the fuel and engine management systems can often produce these symptoms. A few things I would look at are the fuel pressure, fuel pump, temperature sensor, and idle air control valve.

I would start by testing the vehicle’s fuel pressure, to see if the fuel pump is providing enough fuel pressure and volume to meet the engine’s needs. Next I would look at the engine’s coolant temperature sensor, as this sensor will make changes to the computer’s tune for the engine, depending on temperature. If the issue appears to go away when the engine warms up, it may be related to the sensor.

I would also look at the vehicle’s idle air control valve as this is the component that is responsible for setting and maintaining the engine’s idle. If these all check out then I would suspect an issue elsewhere in the engine management system.

To avoid any unnecessary repairs, consider having one of our mobile technicians come to your home to perform a diagnostic of your car’s no start condition.

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: tapping from under the hood, faint exhaust smell, poor performance

Hello, thank you for writing in. Typically a tapping sound from the engine is a valve issue. This would also help explain why you may be smelling gas or exhaust build up. When intake or exhaust valves are not functioning,...

Q: My truck turns over but won't start.

When a truck won't start, it's usually going to be an ignition or fuel system-related malfunction. The fact that your gas gauge was "ticking" a bit may be an indicator that an electrical problem exists, causing the ignition system to...

Q: Won't run right and will no turn on.

Hi there. Check the fuel pressure on the fuel rail and make sure that there is pressure all the time when the key is turned on. If there is good pressure of 45 to 65 psi, then the fuel system...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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.