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2003 Infiniti Q45 Base Luxury Sedan

2003 Infiniti Q45
Trim Info:
Rear-Wheel Drive, 4 Door Sedan, Mid-Size
17 mpg city / 23 mpg hwy
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July 16, 2013, 1:51 pm


Question: why does engine trip off when my foot is off the accelerator but stays on when gear's in neutral?

From a start, the car's engine stays on when in 'Park', but when its put in 'drive', unless my foot is on the accelerator pedal, the engine goes off. Its an automatic,but gear change is very burdensome and rapid acceleration is impossible.

July 16, 2013, 4:43 pm

Richard W
Expert Mechanic

I would have the transmission checked. It could be that the transmission is having a problem. With it stalling when you put it into gear and having a hard time picking up speed the transmission would be the first thing I would look at. Make sure the fluid is full. If the fluid is full check the color. If the color of the fluid is dark brown or black your transmission is the problem.

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