1990 XJ40 fuel pump recommendations

[Bryan_N]

This may be of interest from the archives - see my post #13 in this thread from 2009 -

[xj40] vapor lock?

In reply to a message from XJ40-MARK sent Sat 14 Nov 2009: Mark, You may have read about a modification to install twin fuel pumps to prevent ‘‘fuel pump noise (chattering) and/or engine stalling in hot weather caused by fuel vaporisation at the fuel inlet to the pump’’. There was a TSB 19-22 published in June 1993 by Jaguar NA applicable to all XJ40s with external pumps so affected to fit a second pump in series with the first (parallel wired) to obviate this problem. The job required …