Question about 1994 Nissan Quest
I just bought a used '94 Nissan Quest yesterday that drives wonderfully except for one strange issue. It shudders (kind of feels like I am driving up a very steep hill that is forcing the vehicle to struggle severely) when I give it any gas at low speeds (I'm talking in the 25-45 mph range). I worry it's not getting the fuel it needs by the light push, it makes me think it's just getting tiny sips of gasoline rather than a steady stream. It is also very hard to get to start/turn the engine over (now I'm comparing this to my past of driving nothing but similarly-aged Japanese compacts-this is my first van) . I have to really turn it hard and hold it there for a good 12-15 seconds and then it's a weak start at that. I wonder if these problems could have their root in the same area, though they may be entirely separate.
There is a few things that could be wrong. 1: check if your fuel filter is clogged or your fuel pump is clogged or just going bad. i would check the filter first, only cause its alot cheeper. 2: check if your o2 sensors are bad and needs replaced. 3: check if your air mass sensor is bad. i would check the easiest first and the pump last.
Posted on May 14, 2009
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Jul 13, 2014 | 1999 Nissan Quest
The Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.
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