Why won't a 1990 Nissan Maxima start after it rains?

Answer 1

The start problems after rain are almost always bad electrical wiring or bad distributor. Humidity can get through bad spark plug wires or crack in distributor and interfer with the spark. Check and replace your spark plug wires or ditributor. Had similar problem with a 1993 Maxima, it was the Mass Airflow sensor that was causing the problem. It would really seem to get bad after or while driving in the rain. Got one at the junkyard for $50., very easy to replace. Make sure if you get the car checked, they check for that b/c we had our car checked for the same problem at three different mechanics 5 times before the lead mechanic at the dealership figured out the problem. the distributer is getting moisture, spray them with w d 40 and spark plugs. I would replace the cap first...it is cheaper and quicker....if the wires are over 3 years old..replace them also... Using WD-40 for a wet ignition is always a good idea...I keep a can with tissue in the trunk!! ok what i did was replace my distributor cap and rotor but what i did to save money was i went online to kragen.com and got their on line advertised price and went to the actual store and bought both the cap and rotor got it half of so 30 dollars instead of 60 and i got my car to start. check the inside of your cap it might be broken mine was but on the outside it looked fine.