Jeep Grand Cherokee Forum banner
ping fuel pump injectors
1-1 of 1 Results
  1. Drivetrain Tech Center
    5.9 Pinging - Unofficial FAQ Hi all, I have a lovely pinging issue with my 98 5.9L. It pings on an incline/load ONLY when its warmed all the way up to temp (does not do it while cold or in high elevation (3000ft and higher) my guess is due to extra fuel available ). The motor has about...
1-1 of 1 Results