HELLO MY FELLOW JAGNIFICENT FRIENDS,
I am new to the site and also a recent jaguar owner,I have just had a fuel pump replaced on my car in march of this year and the car runs a little different since before the pump was replaced but nevertheless it still rode like the kitten he/she is.About a month ago I went to start the car and it starts fine every time,10 seconds after start up the car makes a whirling kinda sound from the engine and it basically rocks the car in a side to side kinda motion and my exhaust makes a putting sound I never heard before from my car.When I began to put car in gear it pulls off slow as ever(5mph) as I pull out of my driveway and the only way it accels is if I pump the acceleration pedal,kinda the same way I would use my hand to use an a handheld air pump.after coming to a stop(at the corner of my street)as I proceed to turn the corner the car does not take off,In fact it goes slower.Since all this has happened I have had the spark plugs replaced and a new fuel filter and hed the MAF sensor cleaned.The car is still doing the same thing and now the car is just collecting dust in my driveway for a week still starts up fine and I am afraid to ruin anything.PLEASE PLEASE PLEASE understand I dont have much time or money to invest but am more than reluctant to give up on her,School starts next week for me and my children so any insight would be Sincerely and Greatly appreciated.

Submitted by deltajhotel@aol.com on Mon, 09/30/2013 - 17:14

1995/1996 and 1997 sedans were XJ300 and fitted with 6 cylinder in line DOHC 4 .0 LT engines. Your car and 1998/2002 are fitted with normally aspirated V8 ENGINES, you do not have a supercharged "R" version option.
I am sorry to suggest this course of action, but I would get the car to a bona-fide Jaguar Dealer and have the problems fixed once and for all. Yes you will have to bite the bullet but it would be fixed right and you would have a full recourse if not.

Submitted by lady_rainbow_h… on Mon, 09/30/2013 - 14:12

Hello again Mr .Vogel and Mr .Petry I am replying to you guys with an update on the issues I was having and what has happened. I found out after continuing to drive the car for 2 weeks because the start- up issues I'm assuming didn't happen because the car had been sitting in my driveway for almost a month because I was scared to mess anything up! the car computer reads on dash display engine coolant low and illuminated in Red. The engine is running hot and the a/c hose collapses,But I notice that the it doesn't show that on the dash that the car is hot or getting hot. The hand stays in the middle of the cold and hot. I went to start the car last night and it started normally and as I pulled out again same thing happens, it hesitates to accelerate and then it drives normally. About a mile and a half down the road the car completely cuts off,power steering cuts off and i pull over immediately just in time to get it parked in a bus zone. A gentleman walking up the street who claims that he can assist me with locating the problem because he/we smell gas.He proceeds to look under the rear end of the car because he knew that the fuel tank was located in the rear of the car and noticed not only it leaking but that the leak came from the fuel line not in the fuel pump clamp.The mechanic who originally replaced the fuel pump didn't push the line into the clamp.I am wondering if that was the reason the car would hesitate at take off? Since this issue My uncle has replaced the line and put the line inside of the fuel pump and clamp and there are no visible leaks.he has also reset an inertia fuel switch but it didn't seem to be starting. We then put 7 dollars worth of gas inside to make sure that there is enough gas and still it's not starting.At this point they are talking a fuel pressure regulator? My jaguar has officially grabbed my wrist and has me screaming UNCLE!!! Any suggestions would be greatly appreciated.I have a manual for 1996 and older but the pictures of the engines do not look the same as mines and there are (3) 4.0 supercharged and (normally aspirated) . My engine is 4.0 but not super charged. Help help help. I am NOT I repeat Not ready to give up on her.This car has been good to me regardless of these issues and I totally appreciate that.I am willing to give him/her the TLC she needs.

Submitted by vogelbp@gmail.com on Fri, 08/23/2013 - 14:59

Mr. Petry,

I'll have you know that I am *not* Freudian. Let's keep the id out of it!! ;-)

My car has been passing Virginia state inspections since 1999, but in the region where I live there are no emissions tests. There are in Northern VA, and there they relied on external equipment (e.g., an inserted tailpipe monitor) to either pass or fail you.

I'll have to take a reading again sometime soon, but I have never, ever failed to get a P1000 with this car. Watch, I'll do the next check and have a P1111! [No matter what you tell a professional technician, and in what context, the car will defy the owner just to make a liar out of them!! (Not limited to Jags, either.)]

Submitted by stevejag@sbcgl… on Fri, 08/23/2013 - 11:51

Never seeing P1111 is in itself a problem. If you never see it, that means the on-board component monitors never fully complete. Most state or emission tests will fail a car that does not show P1111. That tells testing authorities the car MAY NOT BE in compliance, because if all the component monitors have not successfully completed, all items HAVE NOT been tested. The car, therefore, MIGHT be a polluter.

I think someone once said, "Knowledge id Power" :-)

Cheers,

Submitted by vogelbp@gmail.com on Fri, 08/23/2013 - 10:15

Steven,

Thanks for the direct link. I knew this had been covered somewhere, but couldn't remember where/when.

I long ago determined that the P1000 is not, in any meaningful sense, a "fault" code and am glad for the specific explanation of why. I don't ever recall having seen a P1111, though my memory is not what it once was!

Submitted by vogelbp@gmail.com on Fri, 08/23/2013 - 09:06

Rashita,

As the old saying goes, "Knowledge is Power," and you've come to a good place to get knowledge.

There are many, many online sites that explain OBD-II Diagnostic Trouble Codes (DTCs). Here's one you might find helpful: http://www.obd-codes.com/trouble_codes/

I *always* get a P1000 code, which (long story short) I have learned to ignore. It occurs on each and every reading, whether I have a check engine light on or not. I my case it's got to do with the interaction between the reader and Jag's system. That, however, is the only code I ignore.

Your P1646 (see this site: http://dtcsearch.com/P1646/Jaguar/) suggests there's still some issue with your fuel pump (not the pump itself, but the circuit that controls it). Generally, relays are easy to locate and inexpensive (in the grand scheme of things) to replace.

Much as I hate having a car towed, the kind of issue you describe could cause driveability issues (and has) and could leave you stranded by the side of the road.

One thing you're going to have to become accustomed to is getting occasional (some more frequent than others) spurious warning messages from the car. I have gotten stability control failure messages off and on ever since I bought my 1999 car in 2006. They have always cleared themselves. You must religiously have the brake fluid flushed and filled in these cars once every two years. The monitors on the system are very "fussy" and if you get crud floating about in the system things get much uglier. When I first got the car I got low coolant warnings fairly regularly, too, but the coolant wasn't low. That seems to have somehow resolved itself permanently, as I haven't had one of those for years now.

My experiences with "restricted performance" have been either when one of my ignition coils decides to die (I keep spares in the trunk in case it happens on the road - and it has) . My car has also proven to be very difficult to start after sitting for several days secondary to a leaky fuel injector flooding the car.

Submitted by lady_rainbow_h… on Fri, 08/23/2013 - 09:02

Hey guys
Thanks for replying it really means a lot!!!! I did in fact go to Autozone to have a quick diagnostic read and i got two codes that read p1000 and also p1646,but the gentleman who assisted me to me that he thinks they are dealer codes but he wasn't for sure.I proceeded to go home to google these codes and Mr.Brian your right,indeed it did say something regarding the OBD II but i clearly didnt know what that meant,and a gentleman referred me to this site.i started the car yesterday and (2) lights came on low engine coolant and stability control/restricted performance! I don't know if i should drive the car to my nearest import dealer or have this beautiful beast towed.Either way I am scared to mess up.Mr.david thanks for replying,and to answer you also no I have not checked to see if jaguar has replaced the timing chain tensioners. I don't know who to contact for that information.Right now I am seriously beggining to worry about the car because its like she's sick and I dont have the home remedy to heal her.when i went car shopping before i bought the car I prayed to make the right decision before purchasing and let me tell you guys that I trust I made the right decision because the car has been good to me.I want to pass her down the family like the Gem he/she is.How can i find out if the tensioners have been replaced already and if they havent will the job be costly? Thanks a MILLION in advance!!!

Submitted by lady_rainbow_h… on Fri, 08/23/2013 - 07:29

Mr. David,
I forgot to add that NO the fuel filter wasn't replaced at the time the pump was,it got replaced 5 months later(last week) and also the spark plugs got replaced at the same time by my uncle who has wrecked his brain on what these issues could be? That alone can be time consuming.I am at a loss for words,But grateful to you guys for sure!

Submitted by lady_rainbow_h… on Fri, 08/23/2013 - 07:19

Hey guys
Thanks for replying it really means a lot!!!! I did in fact go to Autozone to have a quick diagnostic read and i got two codes that read p1000 and also p1646,but the gentleman who assisted me to me that he thinks they are dealer codes but he wasn't for sure.I proceeded to go home to google these codes and Mr.Brian your right,indeed it did say something regarding the OBD II but i clearly didnt know what that meant,and a gentleman referred me to this site.i started the car yesterday and (2) lights came on low engine coolant and stability control/restricted performance! I don't know if i should drive the car to my nearest import dealer or have this beautiful beast towed.Either way I am scared to mess up.Mr.david thanks for replying,and to answer you also no I have not checked to see if jaguar has replaced the timing chain tensioners. I don't know who to contact for that information.Right now I am seriously beggining to worry about the car because its like she's sick and I dont have the home remedy to heal her.when i went car shopping before i bought the car I prayed to make the right decision before purchasing and let me tell you guys that I trust I made the right decision because the car has been good to me.I want to pass her down the family like the Gem he/she is.How can i find out if the tensioners have been replaced already and if they havent will the job be costly? Thanks a MILLION in advance!!!

Submitted by vogelbp@gmail.com on Thu, 08/22/2013 - 18:09

Rashita,

Is the "check engine" light illuminating (and/or has it stayed illuminated) after this behavior. Given your description I would be shocked if it didn't trigger several OBD (On-Board Diagnostic) codes that are stored.

If you had the light come on, but then go out after restarting a couple of times the problem itself was transient, but it's as likely as not that it won't stay that way.

It sounds to me as if it may be something failing in the ignition system. If that were happening it should trigger and store diagnostic codes. If it is this kind of code then you don't even have to go to a dealer to get those read. You can run down to your local auto parts store that does free code reading and if the codes are part of the OBD standard (and most are) they should at least be able to tell you what they've found in the computer. However, if you do that, tell them *NOT* to erase the codes. You would want your service facility to be able to pull these up, too.

Submitted by deltajhotel@aol.com on Thu, 08/22/2013 - 10:59

Hi Rashita,
There could be many maladies giving you these symptoms, ignition timing ,faulty coil, plug wires, fuel injection system damaged speed sensors, and faulty injection relays,EGR valve, leaking vacuum intake manifold. Was the fuel filter also replaced when the pump was.
Do you know if the original timing chain tensioners have been replaced on the engine. I would try and get the vehicle to a Jaguar dealer he could hook up his computer and read the fault codes, you could then go from there. Good Luck