I am hearing an intermittent noise in my 2016 LC that seems to be coming from behind the dashboard somewhere? It sounds like a pump or gear being driven, somewhere forward of the dash on the driver side. It lasts a few seconds and then stops, but it happens repeatedly. It could be in the engine bay but I can’t verify because it only lasts a few seconds. Any ideas?
I had the truck in for radiator fluid change, spark plugs/tune up, fuel injection cleaning and an oil change at 89,000 miles. The truck runs quieter at idle and seems smoother (I’m attributing to a switch to 5w30 oil and/or the fresh spark plugs). But now I’m hearing this grinding or pumping sound, intermittently, after startup and while driving. I’ve never noticed this before in the 7 years I’ve owned the truck. Any suggestions appreciated.
I had the truck in for radiator fluid change, spark plugs/tune up, fuel injection cleaning and an oil change at 89,000 miles. The truck runs quieter at idle and seems smoother (I’m attributing to a switch to 5w30 oil and/or the fresh spark plugs). But now I’m hearing this grinding or pumping sound, intermittently, after startup and while driving. I’ve never noticed this before in the 7 years I’ve owned the truck. Any suggestions appreciated.
Last edited: