Question about 1990 Nissan Maxima
Rough idle makes a pop pop pop pop when idling in gear, hesitation in power, poor gas mileage
I would first be sure that you have spark to that cyllinder. Pull the wire off and stick an extra spark plug in the wire. Lay it on the engine block somewhere and atart the car to see if it's sparking. If it is, you have a valve or cam problem. If it isn't check the plug, the wire, distributer, coil pack etc.
Posted on Jan 14, 2013
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Posted on Jan 02, 2017
Check for vaccume leaks and also you PCV valve. check the hose too. Visually inspect every vaccume hose you can find. Sounds like a leak .
Posted on Nov 10, 2008
SOURCE: 1995 Nissan Maxima idle problems
Let's try the cheapest fix first. Change the fuel filter out. You'll probably see a brown looking goop in the gas, This is an "ETHANOL" problem. Read up on it. These are all related to so many idle and acceleration problems. Buy a can of SEAFOAM at the parts house. Fill up tank with Premium and add SEAFOAM. Then change filter out before 500 more miles. This should clean out the water and the goop and the carbon build up caused by the ETHANOL. Add a can of SEAFOAM every 3000 mile after that to a full tank of gas. It will keep your emissions,engine, and fuel lines clean. And will keep your car from line freeze up. Good luck.
Posted on Aug 29, 2009
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