weird starting problem - door switch???

[NorCalXJdude]

OK, here's a weird one for you all...

1992 XJ. HAD an alarm, took it out because it caused no start condition or shut down while driving. NOT GOOD.

But, every now and then, the XJ won't start. Through a lot of trial and error I found that SLAMMING the driver side door made it start.

Is there some sort of switch in or near the door that might cause this to happen?

Thanks!
TAZ :confused2

[womb raider 940]

If you slammed it, do you think it is a short somewhere

[NorCalXJdude]

I am thinking it might be an open, but could be either.

It is baffling... and, only every now and then. Weeks will go by and it is fine. Then, suddenly, POOF, it frags on me... <<sigh>>

If you slammed it, do you think it is a short somewhere

[Dukes69]

I had alot of problems with my 88 a while back. I had 2 problems. One was the CPS. All I did was unplug and plug back in the connector a couple times and that fixed the starting issue. The other problem was related to a wiring harness that ran under the driver carpet. It gets warn through and starts shorting on the floor board. I'd take a look at that.

[Dirttorcher05]

Ya my 91 used to have a similar problem but I came to find out that my shifter sensor was worn out and wouldn't recognize the shifter was in park or neutral so just shaking it or hitting it forward usually did the job, and on one occasion I got mad and slammed my door and when I got back in it started fine.