Hello Xterra experts,
I’m experiencing few issues with my 2014 X in recent rides. Wanted to share and hopefully find a solution if others have faced it in the past.
The issue started with AC completely stopped cooling or even blowing hot air in the middle of the desert. Though there are no issues with the AC whatsoever while driving on-road or the initial off-road track. After about an hour or so of our desert drives, the AC stops functioning and just blows hot air. I thought this was due to the hot weather, but faced the same on a night drive when the temperatures were quite pleasant. That ruled out the hot summer to be a cause for it.
My second guess was engine overheating. The coolant levels are fine and I’ve been checking the temperatures. The max it reaches in demanding patches of the drive during the day is about 96-97 degrees and quickly comes back to 91-92 while on a more relaxed time. So the fans seem to be working fine as well as coolant.
After coming out of the desert, turning off the vehicle, ABS kill switch, 4H, etc. and the AC is perfectly fine all the way till back home.
The above issue is still not fixed but I do manage to roll down the windows and have an occasional sandbath in our drives😎.
While the above is still something of a personal endurance test😅, the other issue I’m facing is loss of acceleration or lag in power on even moderate climbs.
This was a major issue exposed in my last FB+ drive with @Varun Mehndiratta .. I couldn’t effectively do most of the climbs which otherwise were pretty easy to capture previously. There’s a serious lag in acceleration and building up momentum. I’ve since had my vehicle checked by experts(garage) and still the issue isn’t resolved. They’re not able to figure out what’s the issue as every component seems to be working fine(individually).
Just to add to that the mech’s advised there’s backfiring happening and this would be due to air to fuel ratio imbalance. Tbh, I didn’t understand that part but experienced it and whenever this backfire was replicated, the AC cut-off scenario would appear. Restarting the vehicle would solve the AC issue temporarily.
I’ve got a cold air intake which currently is being replaced by stock air filter, to test if it solves the problem. I’d got the spark plugs changed and injectors cleaned recently. Which is the only internal recent change I could think of after which I’m observing these issues. Or the most recent is that I got a steam wash done at a new place, which I assume they’ve watered under the hood possibly causing any underlying electricals to act funny at times🤔.
The diagnosis is still underway, so posting it here for any helpful feedback.
Thanks in advance!