2003 Altima: my 2003 nissan altima is shaking everytime i pull ...

Question edited for clarity.
Question moved from Car Audio category.

Diagrams and videos.

https://www.google.com/search?q=2003+nissan+altima+2.5+crankshaft+sensor+wiring+diagram

..

-It could be miss fire,bad coil, air leak, injector or spark plug and plug wire. It's hard to tell at this moment.
-First able you needed to check all above to determine which part is bad.

Good luck


Mai

these are notorious for this problem-a leaking intake gasket at #4-it can be verified by using a can of carb cleaner. Spray around #4 intake port, if the idle changes you have the same issue. Do NOT clean the throttle body on these cars, it is so sensitive that a 25 RPM change will set another code that you'll never get rid of unless you replace the entire throttle body. I work on my neighbor's Altima, there are no shortage of quirks with these cars. Here is a link specific to your issue, with owners who want a class action against Nissan:

http://www.obdii.com/ubb/Forum1/HTML/002735.html

Sounds like the rotors have gotten hot and warped. this will cause a shimmy when braking

sounds like your carb is getting to much air some where check your hoses

If you have a Service Engine Soon light on, then having the computer scanned for codes would be recommended. The code could indicate what the problem may be. The most common is cam and crank sensors.

I would have it checked to verify.

Thanks Jay!

check the iac the idle air controller.also with or without air conditioning running.

Just get to your mechanic till its not too late

this problem could be caused by the mass air flow censor, i had the same problem with my car. it is really pricey at the dealer so you might want to check elsewhere for this part. I found one at a scrap yard for 85% less that the dealer and i also got life time warranty, the dealer does not offer any warranty on this part.

what that means is your socket is is probably shorted to your running lights there is a constant feed of voltage to that circuit. i would take a circuit probe and trace a wire to the spot of the short. good luck.