1994 Jaguar XJS diagnostic code

1994 JAGUAR XJS
107,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
STARFISHBJELLA
  • MEMBER
  • 1 POST
My instrument panel has the limp mide light on. I had the purge valve replaced after a diagnostic and the limp mode light still comes on. Code reads FF39. What does that mean?
Mar 8, 2009 at 7:31 PM
Advertisement
Avatar
HIGGINS11
  • MEMBER
  • 5 POSTS
this is an EGR (exhaust gas recirculation) code. you first need to check the EGR valve for proper operating. you can do this by using a vacuum pump and applying vacuum to the rubber line on the EGR valve. if the idle drops or the car dies, it is working. if nothing happens check the egr diaphragm inside for tears. if it looks good check for blockages. replace as needed.
Mar 31, 2009 at 7:22 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.