My Jeep has this intermittent starting problem. It's happened a couple of times and only seems to last for a week then it goes away. It turns over fine, justs cranks a bit too long before it kicks in and even then it's quite weak. Oddly enough, if I crank it for a few seconds and turn it off again, the second crank, it starts perfectly.
Well it reared its ugly head once more. I have in the past, had everything apart, checked and cleaned. I cannot find a single mechanical fault anywhere
But interestingly, today I noticed that when it did start, the alarm light on the dash flashed once. This happened each time, today.
This has got me thinking. Is it possible there's a problem with the chip in the key? I've yet to try the spare key and see what happens. But has anyone had any experience of such a problem or heard of it?
As I said everything else is fine. New plugs, engine is spotless inside and out, no issues with fuel pump/ filter, starter motor etc etc all fine.