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QUESTIONS

Q - I have a 1995 Honda Accord automatic. When I first start the car everything works fine but then in just a few short miles the transmission, without warning or noise, stops. If you let it sit for 15- 20 minutes then you start the cycle all over again.

Q - Hello, I have a 1990 Nissan 240sx 2.4l and I have been having problems with it. It sems like there is a misfire somewhere. I have replaced the o-rings on the injectors, fuel filter, d-cap, plugs, wires, rotor button. I am still having problems with it. When you are sitting at a stoplight, the car is shaky and when you put it in neutral, it idles around 1300 rpm. I know the idle air control valve may be sticking and needs to be cleaned, but I was wondering if anything else could be causing this.

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ANSWERS

A - The most common problem with these vehicles is the Transmission Control Module which is located in the right front floorboard just under the carpet where your passangers rest their feet. These controllers are prone to getting wet. This would be the first thing to look at. Have someone pull the carpet back and take a look at the box on the left. The box on the right is the ECU. Hope this helps.

A - It maybe a vacum leak somewhere,. As I recall these cars had a problem with the intake manifold gaskets. First we need to pin down which cylinder is causing the misfire, then we can start to locate the problem. Perhaps adjus5t the air bypass screw to control the idle. The best way to locate the cylinder that is missing is to have someone in the car hold the brake down with the car in drive, then either disconnect 1 injector at a time or pull a spark plug wire 1 at a time till you come across the cylinder that causes no idle drop or has very little effect on the idle. Then I would check compression on that cylinder. If compression is good, look for a vacum leak. Someone may have the idle adjusted way up due to a dead cylinder so that the car will at least idle.

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