1991 jaguar xj 6 car hard to crank bogs under acceleration back fires through intake

1991 JAGUAR SOVEREIGN
172,000 MILES
Avatar
ALAN DEMCHENKO
  • MEMBER
  • 2 POSTS
1991 jaguar xj 6 4.0 have to try to start car 4 or 5 times every time you start it you can easse into acceleration but if you floor it it dies or bogs down and back fires through intake
Nov 6, 2011 at 2:44 PM
Advertisement
Avatar
KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
Have you checked the spark plugs? Seems the engine is mifiring and bad spark pugs or related components can cause that.


Did you check for trouble codes?
Nov 6, 2011 at 3:37 PM
Avatar
TIAGE46
  • MEMBER
  • 1 POST
I Alan, I have the same exact problem. Did you ever find the solution?
Dec 11, 2012 at 11:18 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.