Odd problem starting 2002 XK8 - Help!
#22
#23
Tspinosi,
Try to pull out all the brown relays and switch them around and try to start again.
After a week of no crank, no start issue, I was getting frustrated and decided to play with the relays.
I pulled all the relays out of the engine control module in the engine compartment, passenger side. I then turned the key over and still no crank. By then, I had forgotten which relay belonged where exactly, so I just randomly put them back.
miraculously, all the issues went away after this. I was able to start the car consistently. All the messages went away.
ASC
Try to pull out all the brown relays and switch them around and try to start again.
After a week of no crank, no start issue, I was getting frustrated and decided to play with the relays.
I pulled all the relays out of the engine control module in the engine compartment, passenger side. I then turned the key over and still no crank. By then, I had forgotten which relay belonged where exactly, so I just randomly put them back.
miraculously, all the issues went away after this. I was able to start the car consistently. All the messages went away.
ASC
#24
Have been searching forums for a while, trying to see if anyone else is having this problem. For the last six months or so, maybe 3 or 4 times, I'll go to start my XK8 and it won't start. I have power but the engine will not start at all. I get 4 messages: ABS Unavailable, TRAC Unavailable, Gearbox fault and Engine Failsafe Mode. I originally thought it was a problem with the shifter not being in park, but oddly it seems that if I wait 15 minutes, almost exactly and try the car again, it starts normally and will continue to start until this problem surfaces again. My mechanic put it on the computer and didn't get any faults that would point to this issue. Anyone else ever experience this? Driving me (and my mechanic) crazy.....
had all the leads going to battery checked,, battery is ok,, tried jiggling shifter, turning steering wheel, nothing works but waiting,,
if u find out why, please let me know,, jaguar cant find why either,,
i can usually start it 5 times ok,, then it wont start again,,,
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Bob OB (06-23-2014)
#25
Well, haven't posted in almost a year since, Jag has been problem free since last October. Then two weeks ago, same thing. Turn key, car has power but no crank to engine at all. Happened again yesterday, after using the car maybe four or five days with no problems. Tried moving shifter and starting in Neutral and no start. Waited 15 minutes both times and car starts with shifter in park. Honestly, at a complete loss as to what it could be other than gremlins, lol! Planning on replacing the Neutral Saftey Switch AND the key reader in the ignition but really not sure that will help. Thought I'd post again to see if anyone else had any progress with the same problem.
mine wont start at least once a week , same as yours
#26
Take a moment and look at this information and see if it helps Link JagRepair.com - Jaguar Repair Information Resource
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bobtenn (04-04-2012)
#27
Hey there. Saga continues..... Had the neutral safety switched replaced last November and problem disappeared until last week (5/5/12). This time I didn't think I was going to get it started. Waiting the 15 minutes and nothing, then tried moving shifter and nothing. After trying this several times, it got to a point where key would not turn at all in ignition even into accessory. It seemed locked tight. In desperation I released the shifter again while turning key and thankfully it started. Going back into garage on the 30th.
Gus, I read over the info on the JagRepair link. Problem is I can't reproduce this fault, it's totally random and happens at the worst times, lol! I'm printing out everything and taking it with me when it goes back to the garage. Thinking of replaced ignition lock next. I had a dealer suggest that a while back, but everything I've found seems to say that if if the lock/exciter ring was bad, car would never start. Any thoughts?
BTW, great link.
Gus, I read over the info on the JagRepair link. Problem is I can't reproduce this fault, it's totally random and happens at the worst times, lol! I'm printing out everything and taking it with me when it goes back to the garage. Thinking of replaced ignition lock next. I had a dealer suggest that a while back, but everything I've found seems to say that if if the lock/exciter ring was bad, car would never start. Any thoughts?
BTW, great link.
#28
Check your PM
Hey there. Saga continues..... Had the neutral safety switched replaced last November and problem disappeared until last week (5/5/12). This time I didn't think I was going to get it started. Waiting the 15 minutes and nothing, then tried moving shifter and nothing. After trying this several times, it got to a point where key would not turn at all in ignition even into accessory. It seemed locked tight. In desperation I released the shifter again while turning key and thankfully it started. Going back into garage on the 30th.
Gus, I read over the info on the JagRepair link. Problem is I can't reproduce this fault, it's totally random and happens at the worst times, lol! I'm printing out everything and taking it with me when it goes back to the garage. Thinking of replaced ignition lock next. I had a dealer suggest that a while back, but everything I've found seems to say that if if the lock/exciter ring was bad, car would never start. Any thoughts?
BTW, great link.
Gus, I read over the info on the JagRepair link. Problem is I can't reproduce this fault, it's totally random and happens at the worst times, lol! I'm printing out everything and taking it with me when it goes back to the garage. Thinking of replaced ignition lock next. I had a dealer suggest that a while back, but everything I've found seems to say that if if the lock/exciter ring was bad, car would never start. Any thoughts?
BTW, great link.
#29
Hello all! Gus has been kindly helping me out to zero in on the problem but I thouhgt I'd post an update here for everyone. After "no start" reocurred about three weeks ago, the car started fine about 10-12 times. Yesterday morning went out to drive it to the shop and "no start". Attempted to move shifter to N but couldn't, even with key inserted into j-gate. When I put it back in start, it started fine. Drove it to garage and put it on computer and gave p1797 code, which I found (on Gus' site) as CAN ECM token message missing and through some other searches as Neutral Switch Malfunction. So, mechanic thinks the Neutral Saftey Switch I got was faulty or shifter micro switch. Will likely replace both. Here's hoping. Only positive note is that it finally showed some kind of code after a "no start".
#30
#31
#32
Hello there. I asked the exact same thing to a dealer about the 15 minutes and he said he had never heard that about the alarm system. The ignition exciter ring/key reader/transpoder has been suggested before. Some have said if the keys are disarming the alarm system then this is not the problem. (This is unverified) Also there are no security system related codes coming up after a "no start". There were no codes at all until the first "no start" AFTER replacing the neutral safety switch. The code came up as P1797 relating to a Neutral Switch Malfunction. Since the neutral saftey switch had just been replaced last Nov, it was suggested to replace the shifter micro switch. If this is not the issue, I think the exciter ring is all I have left to try, lol!
#33
engine quitting
Please let me know if you have any luck.
I kind of felt it is either the alarm system or exciter because of the 15 minute reset too
Also I bought the car 1 year ago and had a reset issue with the existing remote which was original so I bought w key from a third party. Took both to Jag: they "programmed" one of the two new remotes but could not get the 2nd to function (same part number) They could not program the key and supplied their own which they could not program either.
I kind of felt it is either the alarm system or exciter because of the 15 minute reset too
Also I bought the car 1 year ago and had a reset issue with the existing remote which was original so I bought w key from a third party. Took both to Jag: they "programmed" one of the two new remotes but could not get the 2nd to function (same part number) They could not program the key and supplied their own which they could not program either.
#34
Starting Problem
The Key Switch is Mechanical and if the key turns there should not be anything Wrong there. The Key has a Transponder built into the Head of The key and They Seldom Fail.
There should be Switches on Back of the Door Locks to Turn on and Off Alarm and These Can Go Bad?
I Will Have to Check My Car and See if it Shuts Down the Electrical and Fuel System When The Alarm is Set Off?? Will Let You Know Later.
There should be Switches on Back of the Door Locks to Turn on and Off Alarm and These Can Go Bad?
I Will Have to Check My Car and See if it Shuts Down the Electrical and Fuel System When The Alarm is Set Off?? Will Let You Know Later.
#35
#36
Sorry for the delayed response, but I'm hesitant to claim success after the last few times, lol! After changing the micro switch, the car has started now, without problems, well over 50 times, which I would normally say is good news, but since it was fine for over seven months after replacing the neutral safety switch, I'm not so sure. I'm on vacation this week and plan on using it pretty much for everything, so hopefully will have a better idea.
#37
Follow-UP
Whats the status, have you had any issues since?
how hard is the replacement of the neutral safety switch an micro switch?
thanks!
how hard is the replacement of the neutral safety switch an micro switch?
thanks!
Sorry for the delayed response, but I'm hesitant to claim success after the last few times, lol! After changing the micro switch, the car has started now, without problems, well over 50 times, which I would normally say is good news, but since it was fine for over seven months after replacing the neutral safety switch, I'm not so sure. I'm on vacation this week and plan on using it pretty much for everything, so hopefully will have a better idea.
#38
Hey all. Status update. Have not had the no-start/crank problem no in almost 100 starts. The replaced micro switch is part of the neutral safety switch. Funny thing is, I replaced the neutral safety switch a while back and got several months out of it before the problem came back. On a shot in the dark, I had the micro switch replaced and now evertything seems fine. My worries are that in order for this to have been the solution, my original neutral safety switch/micro switch would have had to have been bad, and the micro switch on the replacement neutral safety switch would have had to have died. Seems like a lot of coincidence, lol!
So car is working fine for now. Truth is, I've been keeping the miles off it. Looking into that new F-Type that's coming out next year.
So car is working fine for now. Truth is, I've been keeping the miles off it. Looking into that new F-Type that's coming out next year.
#39
#40