So I've had a 2013 Taurus SEL since 2015, and overall it's been a great car (I've literally only had to change the battery since owning it) and I've always felt it was reliable. It's got a bit over 82K miles on it now, and I've had it since about 56k.
However, after the recent two days of artic weather (which I only drove for about 2 hours both days and my car started and ran fine during those days) I've run into an issue that I'm having trouble finding any solid advice about online or through friends.
I drove it yesterday, and it suddenly started kind of surging or pulsating when I'm going between 30 to 45. Not dramatically, but enough to notice it and you can see the needle bouncing up and down between around 1.5 and 2 RPMs. The RPMs flutter up and down and you can feel it while it's doing it, as I said, just not like incredibly bad. It has no acceleration problems and once you get past 45 or if its below 30 the RPMs are fine and the car feels fine. There are no weird sounds from the engine when its doing it, or any other time. I haven't noticed anything leaking, either. The Check Engine light is not on at all.
I first thought that it might be water in the gas from the drastic change in weather (it was like 15 degrees one day, then 65 yesterday) and got some HEET at Walmart. Drove it for another 45 minutes, but it was still doing it. So I took it to Autozone, and they didn't find any codes at all.
I've gotten a lot of different responses, but most of those always involved CEL
, stalling, poor acceleration, poor MPG (which might be true but I haven't driven enough to notice yet), etc. So I'm really not sure what is going on with it. Someone recommended that I go get the Transmission fluid changed out, but that's a pricey (about 190 bucks from what I saw) for it not to even need it and not fix the problem.
Just curious if anyone on here has had a similar issue, or might know what could be causing it so that I have a better idea. I hate going to a mechanic clueless, especially if they want to start replacing random parts and it still be an issue. Thanks for your time.