1998 Jaguar Vanden Plas V8 Two Wheel Drive Automatic 41000 miles
Wife drove about 50 miles and back with no problems. Stopped at a restaurant and Jag would not start again. No pressure at rail, no turning of fuel pump in tank. Also no power to fuel pump " fuse" in boot fuse box. Engine turns, everything seems appears normal, but no fuel and no start. (I am assuming that if key is on, power should be found at the " fuel pump" fuse in fuse box, power to other fuses okay.)
Start by checking fuse # 16 in left heel board fuse box !
April, 26, 2010 AT 6:54 PM
I do have power to fuse #16 in the left heel board fuse box (w/ign on).
In the boot fuse box (w/ign on) it powers all fuses except fuses 7, 8, 15, 17, 19, and 21 (all other fuses have power).
In the boot fuse box (w/ign off) power is to 1, 2, 9, 10, 12, 16, 18, 20, and 22 (all other fuses have no power).
FYI, though I have a fuse in the S/C fuel pump fuse holder, I do not have a corresponding fuel pump relay 2 in boot fuse box recepticle or stop lamp relay in its relay recepticle in boot fuse box (I do have power to both relay recepticles).
April, 27, 2010 AT 3:00 AM
Check the inertia switch (fuel cut off) is not tripped !
Inertia Switch. Behind right kick panel.
April, 27, 2010 AT 7:21 PM
Found inertia switch and pushed down rubber covered plunger (on top of switch). Not sure I heard any click (like a clicking sound when I have reset other reset switches), but could feel something depressing under rubber cap. Either way, still no fuel or power to fuel pump fuses in boot fuse box.
I saw in wiring diagram that fuse #16 in left heelboard fuse box services " fuel pump relay 4" then it in turn services fuel pump fuse #7 in boot fuse box. Where is this relay found and how do I test to see if power is getting to it and test to see if it is good or not?
April, 30, 2010 AT 3:13 AM
Sorry for the dealy in replying.
May, 1, 2010 AT 4:19 PM
I have power to the fuel pump relay recepticle (with key in on position) and I interchanged with the various matching relay blocks in fuse box, but still do not have power to #7 fuel pump fuse found in boot fuse box and still no fuel to engine. FYI, I am missing two relays in boot fuse box, fuel pump relay 2 and stoplight relay. Is it possible to use a jumper to power fuel pump fuse #7's recepticle from fuel pump relay (and therein the fuel pump) or what could I be missing here?
May, 6, 2010 AT 4:01 AM
You will only get power (hot/live 12 volt) to fuse and pump at key on for 2/3 seconds then the power will be cut by the relay. You will then only have a hot/live 12v feed again at cranking or engine running. Check you have power when someone is cranking car for you. If you have power (hot/live 12v) at cranking then the pump is bad !
May, 6, 2010 AT 6:08 PM
You were right. Tested as you instructed and found out that pump was bad. Appreciate your assistance.
May, 7, 2010 AT 3:26 AM
Glad to be of assistance ... please use our forum again in the future if needed and spread the word of our forum to family and friends etc.