Question about 2001 Nissan Pathfinder
Loosen screws to idle air control valve. Move very gently & slowly. possibly in wrong position.
Posted on Apr 19, 2014
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Posted on Jan 02, 2017
SOURCE: 2001 nissan altima idle surges
I had same problem.It turned out to be intake gasket.If it surges when u come to stop or in park, u may want to look at corners of intake,spray something that burns around intake , if the idle levels out it is gasket.
Posted on Apr 06, 2009
the 2001 altima is what i have and I had the same problem as you. turned out to be a bad head gasket factory used cheap ones for a few years before they found the problem. one way to test this is to get a can of carborator cleaner and spray it around the area where the head meets the block under the intake problem should be around the 4th cylinder or close to driver side. if the head gasket is bad the rough idle will smooth out while you are spraying the head.
Posted on Aug 06, 2009
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
ok i have the same truck my timing was off 3 teeth but mine wouldn't kick out of high idle is y mine was surging but know with timing right no vacuum leaks i cant get it below 1400 but when a vacuum turns on it almost kills my engine any thoughts i know i got a vacuum line mixed up idk were though
Posted on Jan 19, 2010
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