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1999 Jeep Grand Cherokee P0441 and P0443 Trouble Codes: Causes, Symptoms, and Solutions

Model: 99 Grand Cherokee Fault Code: P0441 Posted: 2017-06-23 21:39

I've been experiencing both P0441 and P0443 diagnostic trouble codes for some time now. These codes occasionally clear on their own, but I'm concerned about whether they could cause my Jeep to stall, run roughly, or worsen under hot weather conditions. Does this affect engine performance in high temperatures? What are the typical symptoms and potential fixes?

Related fault codes
P0441P0443
Comments (1)
Anonymous 2017-06-23 22:22

A stuck open purge valve is a common cause of rough idling and misfires associated with P0441 and P0443. For detailed explanations and repair steps, refer to the official trouble codes section of this forum.