Low RPM while accelerating only slightly?? - Infiniti QX60 Forum
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post #1 of 2 (permalink) Old 11-07-2019, 10:45 PM Thread Starter
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Low RPM while accelerating only slightly??

Just bought a pre-owned 2019 Luxe with about 17k miles. First month it ran great, but now we are experiencing the following:

While trying to maintain a steady speed between about 25-40 mph, we accelerate ever so slightly just to maintain speed. While we are accelerating that tiny bit, the RPMs actually go down. Put another way, if we are rolling down the road at say 30mph, and I take my foot off the accelerator, the RPMs are steady around 1,250. As soon as we accelerate SLIGHTLY to maintain speed, the RPMs DROP to about 1,000-1,100, and the car rumbles/vibrates. If I give it just a bit more gas, the RPMs break free and increase normally. I know this might sound like a subtle annoyance, but I never realized how much we actually need to accelerate so slightly to maintain speed. The car was not doing this a month ago. We've put only premium gas in.

Otherwise, the transmission seems to be responding normally.

Before we go back to the dealer, anybody know what we might be dealing with here?

Many thanks
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post #2 of 2 (permalink) Old 11-08-2019, 09:22 PM
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Rumbling and vibrating is not normal. My guess, and this is a guess, is you’ve got a bad torque converter.
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