2003 Infiniti FX35 - Answered Questions & Fixed issues

Everytime I turn my heater on and switch the mode now it's making like a weird grinding noise I can feel it by my steering wheel don't know what to do

run the fault codes to determine if engine or transmission fault that put the light on

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If I understand your post correctly, once you get the car running, you have no more problems the rest of the day? That would explain why there are no codes. The ECU typically will not react to issues. Unfortunately these are complex systems, and Nissans tend to have some gremlins (I have an 07 FX, and had owned several others). The easiest thing to check is the battery. The system depends on accurate voltages, so test the battery under load (the standard test won't do). If it's over 3 years old, it might be the cheapest first step to replace it. Keep in mind that both the engine and the battery operate better once warmed, so this is consistent with your "all day" experience. Also, if you have occasion to start the car then turn it off quickly (like moving it inside at night, you can have unburned gas causing hard starts. This can happen in cases where the engine is run less than five minutes from cold. Could be pressure valves, check valves, or a number of other things. If you live in a harsh climate, you may be getting some corrosion in the electrical connectors. This can through off voltage and cause the ECU to react to incorrect conditions. If you're handy or have a patient friend who is, the repair manuals have a fairly complete diagnostic process. Also, check the Infiniti forums.

Check the heater hoses if they are both hot (one is very hot the other a little cooler) then the problem is the air temperature control HVAC blend door actuator or the blend door is sticking in the duct it sits in, in most cases the problem is with both parts. In order to repair this the entire dash must come out to access the defective parts. Please have this diagnosis/guess confirmed as this is a very expensive repair.

If you have a check engine light on then you need to scan the codes. Before you do that, check all fuses, powers, and grounds for good contact and make sure there are no loose wires or any corrosion. if fuses, wires, powers and grounds all check out good. then you need to scan the codes and isolate if you are lacking fuel or spark. could be a simple ecu program or security reset. notice the security light when you go to crank it. does it blink, stay solid or flash in any sort of pattern? feel free to call if need be 4 2 3 3 2 7 4 1 0 8 Tim

The problem is the Door lock actuators and when I went to the dealer they want $467.90 to fix just my driver's side door, but after almost having a heart-attack from the dealer's estimate, I checked on ebay and found a Kit to fix the door lock for only $59 so i ordered one kit (shipping was super fast) it came with very easy instructions on how to install the kit, so I installed about 4-months ago in under 1HR and now everything is Back to normal, I can unlock/Lock using my original OEM key fob and also using the power switch on the door, so everything work as from factory ( no need for aftermarket alarm or remote) ... !!!! here is a link of the kit that I purchased. The seller is green-seller1975 and item #111291472359

you have to take belt,crankshaft pulley.

FIRST SERVICE THE VEHICLE

It sounds to me like you have crossed over a couple of leads. Easy mistake to make!
If this isnt the case, then it is also possible that you have fitted a defective spark plug (Unusual, But I have had a defective plug once, so it can happen).

Take a look at the leads and see of you can see a couple of leads that are crossed. If you're not sure, the best way is to fire the engine up and (Wearlin a thick rubber glove, so the spark doesn't bite you!!) remove one of the leads from one of the plugs. If it kills the engine, then you have probably deprived power from a correctly connected lead. Replace the lead, remove the next lead along etc etc... Sooner or later, you are going to come across a couple of leads which, when removed make no difference at all (Or even improve things when removed if they are causing out of synch firing). Swap the leads over and all should be well.

when you press the horn do you here the relay click, if you do then it seems like the the horn is no good.

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Looks like the you need to check the brake fluid level of the car. Check also the brake pads. you might need to replace that.

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Hi

You're probably going to have to seek the help of a professional. The only possibility is to bang on the door panel in the middle towards the bottom of the door while someone else holds the switch in the up position. This might jar the motor loose and allow you to roll up the window. This will only work if the reason your motor is stuck. There can be other reasons the window won't go up though...bad switch, broken window regulator, wiring, etc.

Also check this link bellow for a detailed idea related to your problem:-

http://www.ehow.com/way_5296298_reasons-power-window-wont-work.html

Please get back to us if you have further query else please accept the suggestion.

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It is likely that something has obstructed one of the passageways in the engine, preventing coolant from circulating fully. If you haven't already, try cleaning and flushing the radiator. If you did, however, and it did not solve the problem, it may be time to see a mechanic.

You need to run a continuety test between the PCM and the sensor wire most likely a bad wire or the connection( if the Wire and connection is good its probably a bad pcm)

A 35 series battery with at least 500 cold cranking amps.

check to see if you have any more fuses blown. battery good?

I searched Car-part.com for an FX. There was no FX35 listed, but there was an EX35. In any event, the Bose amplifier is available used (about 25 of them). Check Car-part.com and fill in the search fields. Then select Radio/CD. Then select the system part. It will list the phone numbers for the salvage yards that have them for sale with the prices. I hope that helps.

It would not be an O2 sensor. What is the code your scanner is pulling?