Starting Problem...HELP!
#1
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I have a 99 XJR and it just started having trouble starting. The problem is random for the most part. I will get in the car start it up and drive it with no problem. I will get out whether it is for 10 minutes or a few hours and it won’t start again. It turns over just won’t start...almost as if it is not getting a spark or fuel. No check engine lights or anything of the sort appear on the dash either when this happens. I have taken the car in once and they could not reproduce the problem so they told me to pick up the car. It is random and I am not sure what the deal is, but it is very frustrating to get stuck places.
Got any ideas....
Got any ideas....
#2
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So where do you start? Many of the intermittent starting problems are related to electrical component issues and a few related to fuel. First you need to verify that you have a constant fuel pressure to the engine. Your car is an “R” and that means you have 2 fuel pumps. If you have pressure then when the car does not start move the shifter from “P” to “N” and see if you eliminate the problem. If this is not the problem then you need to check your starter relay and then the electrical feed to the engine compartment. That fuse relay / fuse box feeds the engine components. When doing this use caution, you do not want to short the system out. I am attaching a few diagrams to help on the electrical.
Also you need to go to the Intro section and do an intro. You will not be able to view any attachments until you meet the required criteria.
Also you need to go to the Intro section and do an intro. You will not be able to view any attachments until you meet the required criteria.
Last edited by Gus; 06-13-2011 at 05:24 PM.
#3
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Check fuel pressure when this event happens... I had the exact same thing happen to me on my 1999 XJ.
The fuel pump was starting to die and would intermittantly not work - until the last time when it didn't work anymore. Fortunately it was in my driveway when this happened.
With no check engine lights on and presumbly no codes flagged, I would STRONGLY suspect this as the pumps are notorious for failing. In fact, I would bet money this is the problem given your symptoms.
If you do have fuel pressure, search the forums for "bore wash" and there are special start up procedures to get her running.
The fuel pump was starting to die and would intermittantly not work - until the last time when it didn't work anymore. Fortunately it was in my driveway when this happened.
With no check engine lights on and presumbly no codes flagged, I would STRONGLY suspect this as the pumps are notorious for failing. In fact, I would bet money this is the problem given your symptoms.
If you do have fuel pressure, search the forums for "bore wash" and there are special start up procedures to get her running.
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