Car Problem Reports

Infiniti Q45 Lack of power on acceleration due to fuel pump issue

Infiniti Q45 Problem
11 Reports
Me Too

Model Years Affected: 1992, 1993, 1994, 1995, 2002, 2005

Average Mileage: 157,500 mi (100,000 mi - 210,000 mi)


If the car drives well at cruise speed, but lacks power while accelerating, there may be a problem with the fuel pump.

  • My 1995 Q45 would not shift into passing excelleration. I changed the fuel pump modual that did not fix it. Then I change the fuel pump and that solved the problem of excelleration.

    Flag This
  • Visitor, , 100,000 mi

    Car has hesitation on acceleration. There is a delay from depressing accelerator to response of car.

    Flag This
  • Visitor, , 210,000 mi

    I found out that my fuel pump was faulty in my 1994 Q45t a few years ago. I took it in for service due to the lack of power on acceleration AND the fact that it would not simply glide or float on the freeway anymore when I eased up on the gas pedal, instead it would rapidly slow down almost as if I were applying my foot on the brakes. was absolutely flabbergasted when our mechanic told me how much it would cost to replace it. EVEN IF I bought the fuel pump from Auto Zone myself, he would be charging me $575 JUST FOR THE LABOR because the repair involves dismantling the entire gas tank and opening it up since the fuel pump is housed INSIDE THE FUEL TANK!!

    Flag This
  • Visitor, , 162,500 mi

    ...not fixed yet, but experiencing identical symptoms. Getting some 'backfiring,' (twice recently) also, on accelerating. And, once while starting low gear car came to a near-stop; I pulled over, waited 3 seconds, took off again and no problem.

    Flag This
  • My car one time decelerating. And shut down with the steering wheel locking up

    Flag This
Ask a Question