Dingo509
NAXJA Forum User
- Location
- Yakima, WA
So i made a 400 mile round trip drive to Oregon and back this last Saturday. going down there everything was fine. Coming back, well that's another story. I noticed the Jeep getting a little warmer than normal, just slightly above 210. Yes it's abnormal for My XJ. it normally runs just under 210 including 112* stop and go (no a/c need to fix that) Here's the specifics on the equipment and the normal readings
The GPS (Garmin GPS III+ voltmeter) normally reads between 13.8 and 14.0 volts when above idle.
This is with the dual electric fans running and the stereo on. (no amp, no subs)
The fuel pressure is right at 43 PSI (autometer pro-comp mechanical gauge with isolator)
The fancy AFR gauge ( Air fuel ratio, autometer pro-comp ultra-lite) reads about the middle of the gauges range.
Now here's the problem, i noticed the temp was reading a bit high, and that the voltage had dropped to 13.2-13.4, the AFR gauge was reading towards the lean side. The fuel pressure had dropped to 39 psi.
What i was thinking is that the voltage drop caused the fuel pump to lose pressure, this leaned out the AFR. And then because of the low voltage the fans were not turning at there full speed resulting in a air flow loss?
Does anybody else think this a possible situation? Or do i have more going on?
Or have i added more to the problem than what's really there?
Dingo
The GPS (Garmin GPS III+ voltmeter) normally reads between 13.8 and 14.0 volts when above idle.
This is with the dual electric fans running and the stereo on. (no amp, no subs)
The fuel pressure is right at 43 PSI (autometer pro-comp mechanical gauge with isolator)
The fancy AFR gauge ( Air fuel ratio, autometer pro-comp ultra-lite) reads about the middle of the gauges range.
Now here's the problem, i noticed the temp was reading a bit high, and that the voltage had dropped to 13.2-13.4, the AFR gauge was reading towards the lean side. The fuel pressure had dropped to 39 psi.
What i was thinking is that the voltage drop caused the fuel pump to lose pressure, this leaned out the AFR. And then because of the low voltage the fans were not turning at there full speed resulting in a air flow loss?
Does anybody else think this a possible situation? Or do i have more going on?
Or have i added more to the problem than what's really there?
Dingo