I am currently in the process of having to replace my 4th Fuel Pump during the last 4 years! .Each time, I have to pay around $800.00 to $850.00 just for the Pump, then of course I have to pay another $200.00 to $250.00 for the Labor. I can understand the Labor cost as I did this job once, but just can't understand the expensive cost of the Pump itself....and then what is the deal with the Pump? Why does it go out so quickly.....

Has anyone found a way around this foolishness? Our Friend in Arizona told me to check the Wires where they connect on top of the Tank for loose connections which I did last year....That worked at the time but not tis time.....I buy my Gas mostly from the Chevron Station around the corner and the Owner tells me that he has not had any complaints such as mine....Does anyone have any thoughts or has anyone else had this problem with your Pumps? I am really P-O'ed about this!!!

Please let me know if you have any suggestions or know where I can buy these Pumps for less than Jaguar's $850.00 Cost....I checked out the Wrecking Yards but they want $150.00 for one with over 50,000 miles on it.....

Me and my Black 2005 Coupe...It's about to drive me NUTS!!!! But I love it Dearly!!

Billy Clyde @ Cinco Ranch

 

What is your problem exactly? Is it no start or the slow start issue? Any problem once the car is running?

 

Charlie,

It's the same old problem.....was just fine and I parked it for a Day and then when I hit the Starter it just spins-over ----NO contact! Just the same old thing...Paul then tried the wiring on top like last time but did not work this time! Just will not Start......Ordered the 4th or 5th Pump...can't remember exactly how many now! Too many, that's for sure! (Tank is full) I thought of that!

Billy Clyde @ Cinco Ranch

 

BCP,
Geez! That's not cheap! Sorry to hear about the 4th fuel pump in 4 years. Long shot - it may be blocked fuel lines/filters causing the pump to overwork, otherwise it may be a sensor issue somewhere causing the problem.

From my limited understanding of these later fuel pumps (which I don't have) they are special PWM units, of which fellow forum member JayJagJay has been struggling immensely with in bringing back to life his "Swim Team Jag. " The modern idea being that by not driving the fuel pump 100% all the time, using a pulse width modulation, the pump life span can be extended. As any modern system, that's great when things work, but once complex systems go wrong it's both difficult and expensive to fix/replace.

Send a private message to JayJagJay as he's well into the PWM fuel pump issues on his car.

 

I wonder if the fuel line was kinked during installation of the first replacement?

 

Have you read the fuel pressure sensor (OBDII)? Normal reading is 55psi. Would be interesting to know if it reads zero, or some other low number.

If you replace it again, I'd say get the old part back so maybe someone on this list could have a look at it, and possibly locate a suitable replacement for the pump part. I know the Jaguar part is an assembly with a pop valve, etc. I believe some have tried before, but not been able to come to a clear path forward. It is altogether hard to believe the pump just dies. Are the brushes worn out? Is it somehow burned? Are these pump freezing from fuel residue? Do they rust to death?

Separately, you might want to replace the control module. I believe they rarely die, so replacements are probably selling cheap on eBay. This is in case yours somehow works your pump to death.

Also, I seem to remember you have "extras" related to power production. More air flow means more fuel of course. Are there any part of your kit that involve elevating fuel pressure?

Just my thoughts, best of luck and keep us posted.

 

fmertz,

In answer to your reply: I have replaced 4 Pumps now! Last Summer I got a Message from Charlie Fulton telling me to look at the connections on top of the Tank and we did those things he said with success....It has been running fine ever since...but last week I went out to start it and it just would not Start. Hauled it to the Shop that I've used for years and tell me that they looked at the Connections again but that didn't help this time.......I ordered another one from eBay and should receive it Tuesday. I'm told that Jaguar apparently received a batch of Pumps from some Manufactor that were not good....but I don't know....Jaguar has already replaced one of the Pumps, as it was only 2 months old. So there must be something to that Story......I just don't know what to do about it and was hoping someone had an answer......These things cost like $800.00 Bucks apiece......This is getting pretty OLD, if you know what I mean....(Oh! I forgot, I also replaced the VDO Sensor 2 years ago and that didn't help either!)

Billy Clyde @ Cinco Ranch

 

Okay, I'm curious. The XKR has two fuel pumps unless I am mistaken. Is it the same one or different ones that fail or both ? I feel your pain, just curious.

 

Jimmy L.................Wrong! XKR's from 2003 to 2006 only have one F/P! You are right on the earlier XKR's.....the 4 Liter ones!

Billy Clyde

 

If you need a fuel pump they are pretty cheap on Ebay, is this what you need? FOR JAGUAR - XK8 XKR FUEL PUMP JLM20529 / C2N3866 | eBay

 

That is for the 4.0

 

Kuddlesworth,

Thanks for the eBay address..! I made contact and found that they were selling Pumps for the 4 Liter Cars...(which use 2 Fuel Pumps) ! All the XKR's from 2003 on to 2006 use only (1) Fuel Pump and it is in the Tank!

Thanks for the eMail address anyway!
Billy Clyde @ Cinco Ranch

 

Sporry about that. I wander why the 4.2 fuel pump is hard to find and more expensive? This is the only one I can find Fuel Level Sender and Fuel Pump Assembly (C2P12142) (sngbarratt.com)

 

Thanks Kuddlesworth,

As you see this is only for the motor...Jaguar is about the only one that sells it and they sell the entire Pump Assembly for around $800.00.....That's why I'm so upset about it all!

BCP

 

That sucks sorry to hear that. I just hope mine doesn't fail because £800 is a rather lot of money. Hopefully someone start re-manufacturing the part.

 

I somehow got lucky and learned that the problem I had with the Swim Team XKR (04) lied in a problem with a crapped out inertia switch. Actually, the switch probably became a little swimming pool of water due to its orientation in a flooded car and corroded inside - not the switches fault.

Anyways, to run a test, I dug around and under the LH foot stand where the switch lives in the 2004, unplugged it (a very small gaged wire 3 prong connector/plug) and I bridged the two wires that allowed the computer to believe that the switch was UNtripped, for sure. At this point I have completely cut the inertia switch out of the system and intend to leave it that way.

At that, the PWM came back on line and the pump sang... Sweet.

Under the arm rest is also a connection from the front of the car to the rear area involved in fueling - controls pwm to the FPCM located (again on the 04) on the RH side of the boot right near and above the battery (FPCM CAN be had cheap as Mertz said).... Two nutts and a plug to change - easy...

The 2 white wires come to a 12 or 14 pin connector under the arm rest. Both wires are white (PITA). One is input to the FPCM the other is the one that reports back to the ECU. They basically are the signal controls for the PWM. If you want, I can get the 04 ED and post them. Don't know if it's the same for the 05. For those 2 white wires, I bypassed the connector/plug under the armrest and went direct,,, soldering the 2 wire sections together.

If it was me, before ever changing the pump, I would tie into the red and yellow (might be yellow with a red stripe) and apply voltage to the pump directly. I bet it/they all would have ran. Don't mean to be that guy, especially after all your woes, worry and hard spent cheddar... But they are pretty tough as Mertz was saying.

Also, check the FPCM ground. It's important. It's in the ground set of the two posts near the battery.

I am super interested in a walbro or some other pump that works on PWM. I think Mustangs and Taurus use a very similar pump and can be had cheap as well.

Me, I cut an access hole to get to my pump. Can have it out in 15 min. I also am willing and will (once I have a good substitute pump) take the bucket that is the OE Jaguar intank bucket and drop the substitute FP into it, and zip tie it in place with one of those heavy duty zip ties... That's if and when my pump dies,,, and it will... Jus a matter of time

IMHO - what these folks are charging for a pump and a hunk of plastic is criminal. But that's just me.
​​​​​​

 

Yep, it is indeed criminal for the replacement 4.2 fuel pump. Sure hope I never need one....

 

JayJagJay...
Sorry but I don't quite get it.....Your saying it is the Inertia Switch?? and you unplugged it and the PWM (?) came back on line....Sorry but what's a (PWM)? and the Pump started working.....and that there is a wire that controls the (pwm)? under the arm rest that controls the Fueling......Sorry! I'm lost......Could you simplify this for an Old Man from Texas? You know: Do this #1 then do that #2.....Please as something is wrong other than the Pump...This is t he 4th one I've had to install @ $800.00+ each...Plus Labor! It sound like you have found a cause but I'm to dumb to figure it out.....
Thanks!

Billy Clyde @ Cinco Ranch

 

Hey Billy...

​​​​​​Maaaan, this is all stuff that I am just learning about myself. Trial and error due to the situation I walked into with this car.

PWM Pulse Width Modulation is the way that the pump is powered - is gas in demand as signaled by the ECU. I'm not saying that the inertia switch IS your problem BUT one of the major SHUT DOWNS when the inertia switch is triggered, faulty, intermittent IS the fueling system. So for me, I checked in that and it's where my particular problem was.

The fueling of these cars is pretty complex. And simple, I guess, and some of the things I named (like someone who mentioned that loose wires or a bad connection) can shut the system down.

From the ECU travel two wires. White wires on the 04. They carry the basic commands from the ECU to the Fuel Pump Control Module (FPCM) found in the trunk. There is at least one plug set between the ECU under the hood and the FPCM - which can be found under the armrest. If I remember, it's a white 12 or 14 pin plug. On my car I found a mouse had done some nibbling. I spliced in some wire on both leads and bypassed it's plug connection all together. If I were to go and look at the ED, I will when I get to work, I'm sure there is a second plug connection for these two signal wires between the ECU/M and the FPCM.

Basically I'm saying that, considering the number of pumps that have 'failed' it might be best to go thru and check every bit of the system. It seems like a lot BUT with the ED and help from folks here it's completely possible. 4 pumps just seems like a lot to go wrong - but who knows, ya know.

Did you or were you allowed to save the old pumps?

 

Jay,Jay,

I ordered and received the only Pump I could find in the USA....It is from a wrecked 2003 XKR with 70,000 miles on it....The only one we could find in the good old USA! It cost me $170.00..................I took it over to Paul's Shop at Noon Today....He is going to save the current Pump that quit on me.......I think the way out of this is to find a replacement Motor....surely they are available somewhere on the Net. I will let you know the Brand and Number as soon as they get it out of the Car! Jaguar was charging around $800.00 Bucks for this item and now they don't have one! What a way to run a Company! Ta-Ta!

Billy Clyde @ Cinco Ranch