I’m having a problem with the relay that controls the fuel pump. Here’s the problem, after I’ve driven the car for two or three hours the engine shuts off. On one occasion we disconnected the fuel line at the engine and tried to start it no gas was coming through the line. When it would not start we checked the fuel pump relay it was real HOT. I had a spare relay and replaced it with the one that was hot and the car started up. QUESTION: WHAT WOULD CAUSE THE FUEL PUMP RELAY TO GET HOT???????

 

A couple of possible scenarios I can think of:

a) The relay contacts are worn and / or dirty. In this case the new relay solves your problem.

b) The fuel pump is dying and pulling in excessive current, damaging your relay contacts. If this is the case, you will eventially need a new relay again plus a new fuel pump.

 

YEP,

As said, and if your car is nudging 100k miles the fuel pump is getting to the end of its life. This is info I have gathered from Bosch and other manufacturers over many years in the industry.

How long since the fuel filter was changed, it could also be overloading the fuel system.

 

I sitting on 132,000 you might right. There is a company on emay that is offering high performance Jaguar fuel pumps for about $60 new. Go to emay.com type in FELCO PARTS or jaguar fuel pumps and tell me what you think about product the price is very right.

 

Personally, I would spend for a major brand or OEM. The fuel pump is a critical item....if you lose the fuel pump you are stranded...or even worse have your engine quit at a dangerous moment. It is a false economy to me.

 

Been away for a few days, NICE.

I would stick with a known brand also. I have read that on our AU site, and the list of other makes it supposedly fits does not make sense to me, too big a gap on engine specs across all those cars for my liking.

Apart from that the pump is IN the tank, and not so simple to replace, so doing it double due to early failure will be fun, NOT.

I use Bosch, Goss, Fuel Miser here, and have not had issues so far. The X300 pump is proving a tad elusive as far as after market goes, but there will be something out there I am sure.

I have a Goss # GE059, but no one here stocks it, so the search goes on.

Mine is getting "noisy" sometimes, and at 169K kms, I am on the edge also, and the local Jag Indy has them for $180, so I may be forced to just do it, as I do waaaaay too many interstate trips in the car to risk it, and the Aussie outback is NOT forgiving in any way.

 

Hey yall new here but I had the same problem on my 96 xj6. I drove for about 4 hours and stopped for fuel and it wouldnt start. I checked air, spark and fuel, no fuel. I just happened to check the relay's in the box by the battery and found the fuel pump relay completely melted. I had a spare and it fixed the problem. It has 125k miles so I guess a fuel pump is in my future also.

 

AHA, another new REAL car operator, WELCOME to our side.

I have, since that last post, replaced my pump, top job, NOT. One of the more dumb design ideas of the later models, just like some other brands that have the fuel filter INSIDE the tank HAHAHAHA.

I resisted the Jag pump until I actually removed what was in there, and since the system is Nippon Denso, Toyota sprang to mind, mmmm.

Turns out it is a "standard" Nippon Denso pump. Used down here on the "larger" Toyota, and Isuzu vehicles. Cost me $69.

My relay was NOT getting hot, but warmish, and now it is cool. I replaced the fuel filter the same day I purchased the car, 3 years ago almost, and again now with the new pump.

 

Thanks for that info Grant. Ill be replacing the pump and filter this weekend. Thing is I just got the cd change and amp in the trunk working and now have to take it all out to get to the tank. Thats ok I have more time than money. I dont have a lot of money in this car yet. Got it for free. It was under an oak tree in NC and was offered the car if I helped get the tree cut and moved off the shed. Took 3 days. It had set for about 2 years. A new battery, oil and filter change, a set of tires and have been driving it for 1 year. I repaired the damage from the tree and then had it painted and it looks great and runs well.

Like I said new here and maybe too much info. But just trying to share. LOL

 

Good deal on that car in any opinion.

Glad you have time on your side, getting that tank out is time consuming, mainly to do with the 2 pipes on the bottom, that MUST be removed from under the car, and space is TIGHT, trust me.

 

That sounds like a really good semi-regular thing to check as a early warning signal.

 

I agree, obviously.

My main reason for changing the pump was that sometimes I had that "evil" audible whirring from the pump, and having had many fail over the years at about that 160k kms (100k miles) mark, and it being real logical and INSIDE the tank, common sense kinda kicked in. The freshly opened bottle of Jack Daniels made the decision process a whole lot clearer, mmmm.

The XJ-S's were a snap, all of 20 minutes inside the boot. This is certainly NOT one for the side of the road me thinks.

As a side note, the fuel pump relay is the ORIGINAL, and is as sweet as the rest of the car.

 

change your fuel filter as well a dirty filter doe"s not help, its puts a strain on the pump, and glad to know you had a spare relay with you, after having same problem be prepared as us old scouts says

 

Having worked all my live for public and private utilities and have "preventative maintenance" engrained into my lifestyle.

I have built a tool box for all my vehicles with tools depending on the vehicle. I have an 84 Mercedes 380SL and have special tools that I know will come in handy since I completely restored it and know the usual things that will cause trouble the same with my Jag and 914 Porshe and the back up Silverado. Im not rich just lucky. Lived in NC for over 40 years and got to know the places where you find the legendary old cars in a barn. Scouted them out years ago before I was retired now I pick them gather them up and work on em.

 

Changed the fuel pump,filter and fuel pump relay and everything is cool now.
Thanks Yall

 

AHA, time for another drink after a successful Jaguar repair HAHAHA.

Thanks for posting back the results.