20 Most Recent 2004 Nissan Maxima Questions & Answers

This engine has two camshaft sensors located on the cylinder head side( on the air intake side).

bank two is the bank of cylinders that is closer to the radiator...not the firewall side.

Hi, this cars cam sensors are easy to change. One on the right side and one on the left side of the motor.

• See my diagram for a visual

1. Remove the mounting bolt.
2. Remover the connector
3. Remove the sensor
4. Install new sensor.
5. Reverse to complete.
6. Same for the sensor on the other side.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

Question edited for clarity. Question moved to model category. In the link https://www.google.com/search?q=2004+Nissan+Maxima+vacuum+line+diagram ..

Here is

Do you have a check engine on? If so take it to auto zone they can read your code for free and tell you what's wrong.

Nevr evr replace any part til uknow issue. Unplug computer n clean the pins..it often clears up issue on old cars. Also the ignition module or coils cud be worn. U may needa scan that reads data targeting the problm. Dont go to astealership

3.5L Engines

1. Before servicing the vehicle, refer to the Precautions Section.
   
2. Remove or disconnect the following:
   
   • Negative battery cable
     
   • Right side engine undercover and side inspection cover
     
   • Radiator on Maxima
     
   • Radiator fan on 350Z
     
   • Drive belt
     
   • Alternator and A/C compressor harness connectors
     
   • Upper and lower alternator bolts
     
   • Alternator
     

Install or connect the following:

• Alternator
  
• Upper and lower alternator bolts. On Maxima tighten the upper bolt to 12-15 ft. lbs. (16 -20 Nm) and the lower bolt to 32-38 ft. lbs. (44-52 Nm). On 350Z, tighten the upper bolt to 48 ft. lbs. (65 Nm) and the lower bolts to 21 ft. lbs. (28 Nm).
  
• Alternator and A/C compressor harness connectors
  
• Drive belt
  
• Radiator on Maxima
  
• Radiator fan on 350Z
  
• Right side engine undercover and side inspection cover
  
• Negative battery cable
  

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This is most likely one of your cam shaft sensors. The reason your transmission goes to 5th gear and stays there is because the car automatically goes into "safe mode". This prevents you from running the car on high RPM's which decreases the chance of causing more damage to the engine.
Depending on the code you get from the check engine light, it will be one of the cam-shaft sensors or the crank shaft sensor. A code reader will answer that question.
Often the sensor just fails or oil gets into the connectors which prevents proper reading. This sometimes goes away temporarily when engine is hot but problem will return.
To replace the cam shaft sensors you are looking at approximately 30 min of work. Its a tight fit but not a difficult job.
Cam shaft sensors are about $80. Not sure how much crank haft sensor is.
Hope this helps, and good luck.

The crankshaft position sensor works in tandem with the camshaft ones, and they sometimes fail together. I've seen it written that the crankshaft one should be changed WITH the cam ones. They're kinda expensive, but the no spark/injection thing suggests that may be your issue. <!-- from fixya rte -->

Get a quality diagnostic scanner on it. Otherwise, it's a guessing game, and an expensive one at that!

check your timing ---and wiring may have knocked off or failed to replace a sensor

Locate cylinder number 1 after searching for year make model firing order Remove spark plugs. Then turn the engine over. Look for the valves on cylinder 1 to be both closed. In the old days, we would hold a long pencil in the plug hole of number 1 and watch it rise and then fall. At the top of the rise is TDC, which should correspond to the marks. The proper way is to have a micrometer that fits into the spark plug threads but the marks will be close enough.

Remove the fuse.

find the short, could be in the switch or a wire itself...and if you have a bulb out it complicates finding it even morenew fuse it, then turn things back on one at a time...should tell u where the problem is

Make sure the power cables are properly connected to the head unit. Especially make sure the negative lead is properly connected to the frame of your car. Another thing to check is the remote wire, make sure that's connected properly to your head unit.

The only advice I will offer on this subject is: Get an auto electrician to look at it, if you do not understand electrics you can soon cause a fire or worse.It might be a relay faulty or the hazard switch could be stuck , press it a few times to see, if you have no luck the get the garage to look at it. Good luck

3.5litre V6 Front wheel drive, the cam position sensor is in the back of the cylinder head above the transmission. bank one is the front bank, nearest to the grill. the cam sensor is held into the head with a 10mm bolt, has one wireing connector with 3 wires in it. the sensor is sort of round with a leg off one side for the bolt the secure.
may need to remove the engine cover to see it. it is held down with allen key bolts.

hey i just fixed mine with the same exact problem, look, all you have to do is open your 3rd fuse box which is next to your washing fluid on the passenger´s side under the hood, for that you need to remove the cover wich is pretty easy (5 staples all you need is a thin flat screw driver to lift the center of the staple and then the whole staple) then you take off the cover and then you open the fuse cover, you are looking for the TAILLIGHT fuse wich is the first on the upper row from right to left if you are standing on the passenger side looking towards the drivers side (you can also look for that fuse in the fuse box cover diagram) remembre is a 15A fuse, replace it, jaja and thats how you save some dollars. saludos desde guadalajara mexico.

The service and repair manual with diagram will provide you step by step help to locate and fix the problem easily and you will get the manual from the given link https://toolsnyou.com