Hi all, I've been experiencing moans/groans from the engine when I accelerate lightly when the engine is somewhat cold. It always makes this noise when the temp gauge is below the 1/4 mark. If I press the accelrator lightly, it starts to groan, then once I let go, the noise goes away, but if I push the acclerator harder, the noise disappears. If the temp gauge is at the half-way point, there's no problems with the noise. Its been getting worse since the Chicago weather is getting colder. Anyone have an idea of whats wrong? TIA
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