Jeep stalls in warm weather when shifting between 4th and 5th gear

[Hornet#7]

jeep stalls in warm weather when shifting between 4th and 5th gear and eventually bogs down and shuts off. Recently when starting jeep it will start up but won't idle, leave it sit for 15 minutes and it will start and run like nothing is wrong.

 

[dieselearl]

welcome to forum. when was the fuel filter last changed?

 

[Chris]

jeep stalls in warm weather when shifting between 4th and 5th gear and eventually bogs down and shuts off. Recently when starting jeep it will start up but won't idle, leave it sit for 15 minutes and it will start and run like nothing is wrong.

Here are some things you might want to check:

• Ensure your fuel pump is working properly. A weak fuel pump can cause stalling when the engine is under load. Also, check your fuel filter for clogs.
• Inspect your spark plugs and ignition coils. Worn or faulty components can lead to poor performance and stalling, especially in warmer weather when the engine's demands change.
• Look for any vacuum leaks in hoses or the intake manifold. A leak can cause the engine to run lean, leading to stalling.
• If the engine temperature sensor is malfunctioning, it might be sending incorrect signals to the PCM, affecting fuel mixture and causing idling issues.
• Since the problem occurs during gear shifts, it could relate to the transmission. Ensure that your transmission fluid is at the correct level and in good condition.
• Overheating can also cause the engine to stall. Make sure your cooling system is functioning well and that there are no leaks.

Since you mentioned that after leaving it sit for 15 minutes it runs fine, it might indicate an overheating issue or an electrical component that needs to cool down before it works properly again.

It might be worth taking it to a mechanic to get a diagnostic if you can’t pinpoint the issue. Best of luck getting it sorted out!