20 Most Recent 2002 Nissan Altima - Page 8 Questions & Answers

bad compression, loose vacuum hose, dragging brakes. sounds like you need the services of a ASE mechanic... Do you have smog check in your state? whens last time you did tune-up(plugs, wires, air/fuel filter.. etc.)? do you track your MPG on each tank? do it and it will be an early warning system if you have a pending failure in teh car. if all else fails, sell it and buy a honda/toyota or a dodge viper... LOL

Weird like what? Describe the sound more. Is it leaves or debris got into the fan from outside?

check for codes first ,as it can be a number of thing needing checked.

There is, in fact, a timing chain on your car. Unfortunately, the Altimas around this year have issues with stretched chains. This car probably should not be driven. If the chain breaks, you will destroy your valves and need to get your head rebuilt. The parts for this repair can be had for under 100 dollars, however, the labor involved is quite a lot. I was quoted $1000.00 for the job and thought it was too much until I got into it. Very time consuming and not for a beginner mechanic. If you know someone who is a VERY good mechanic, maybe they can give you a break on the labor.

This is quite an easy problem haha. I am currently doing my remote start for the same car right now and I know that issue you are having. After 1 or two full failed attempts to start your car the ECU knows not to turn on because it is locked. You have to put the key in the key cylinder, turn it to the on position but don\'t start the car, then count to 5 and then turn off the car and pull out the key for 5 seconds. Do this for a total of 3 times and the system resets. As for getting rid of the immobilizer that will be unlikely due to the fact that it sends info to the ECU to authorize it to turn on the car. However, you can bypass it like I did and then you will be able to use remote start and all the other good stuff. There are 3 types of ways to bypass the immobilizer but it will cost from 30 to 50 bucks. I got this from a Nissan thread so thanks to: Originally Posted by Anymanstupid-immobilizer-prevents-my-altima-2000-start.html#post3665018">

'02 Altima ignition system got wet? Maybe have an undiscove red leak?

could be a fender skirt or inside of tires rubbing against something

Hello this issue could be caused by a number of things I know on the 3.5 engine there is a timing chain tensioner that sometimes slips down and the rod that makes tenison on the chain gets fully extended and the chain will be sloppy.Also on the 2.5 the catalytic converter can come apart and cause problems for the engine.This rattle can be as simple as a loose exhaust heat shield hard to say with out hearing the noise.One other problem I have read about with those 2.5s is sometimes the butterfly valve screws come loose and could get sucked into the motor.You can go to Youtube and see all these things that I have mentioned good luck.

It sounds like you have a problem with the AWU. Accelerator Working Unit, a fancy term for the gas petal. If it is not getting the proper voltage to the ECM it will default to a RPM like you are geting, 2000-2500 rpm. Find one from a junkyard and try it out. I would not shake anything that will just cause other issues.

Keep using it until it acts up -- then rebuilt it Try changing the fluid & add one bottle of Red Lubgard I would only use the fluid you get at a Nissan Dealer

A P1610 Code has to do with the NATS system which is the security system in your car. If you look at your key there is a small blue square in it which contains a chip. This chip sends a signal to your immobilizer in your steering column and then to the Electric Control Module. If the ECM does not recognize the ID of the key then it will prevent it from starting. Try resetting the ECM to get it to start and take it to the dealer. With luck all they have to do is re-program the keys to your ECM again. Worst case scenario, your ECM is toasted and you will need to get a new one. Good Luck!

Here's a link to your plugs Steve. Repair Guides Distributorless Ignition System Ignition Coils AutoZone...

Here's a link to your fuel pump,in the fuel tank. Repair Guides Gasoline Fuel Injection Systems Fuel Pump AutoZone com

the fuel pump is located on top of the fuel tank.

Helm.Com for factory manual--not cheap Any thing other than OEM will not be your car exactly

its inside gas tank

You may have to have the transmission inspected. The problem could be with the linkages that connect the gear shifter to the transmission. Have that one checked out first. If that is ok you may have problems with the syncro. Your car should start at park or neutral. If it does not start at neutral you may have the switches for these checked. Start at the stick where you shift.

you need a new thermostat

if the signal lights work then the wiring and socket and obviously the bulbs are good which leaves the brake light switch or wiring at the brake switch is bad.