So just like last year (click here
), we have a 1990 YJ with a 4.0L that we built up and entered in a local parade. (no pics yet for this year)
The Jeep pulled everything fine, but gave out 3/4 the way thru the parade route. I'm trying to figure why.
At first the driver and co-pilot thought maybe the fuel pump gave out or maybe it had run out of gas. A few hours later I got to it, cranked it up, and let it idle for 65 minutes...that wasn't the problem.
Maybe it overheated...again, it ran fine during the 65 minutes. The (upgraded) electric fan cut on and off like it should and the additional supplemented fan we added kept the temp right at 210 like it should. Don't think it overheated.
My current thought is that maybe the battery temperature sensor tripped. Does anybody know what happens when that goes off?
And no, I've not been able to get the OBD codes...the on, off, on, off, on sequence doesn't give any results.
I'm looking for opinions, suggestions, questions, etc. Even though it is impossible to recreate the scenario, I've gotta figure out what the problem was so I can fix it for next year's float...