Top 20 2003 Nissan Sentra Questions & Answers

Question edited for clarity. Question moved to sub category. All in the link. Click on images tab as well. https://www.google.com/search?q=2003+nissan+sentra+gxe+1.8+fuel+system+diagram ..

There is malfunction in your wiper motor parking mechanism. Most likely replace the motor assembly, if not able to repair internal mechanism.

Check the heater hose's going in through the fire wall ,are they hot ? Both hose's ! This is something you can do yourself ! If they are hot probably the temp actuator is bad or the door is stuck on the cold or heater core clogged ! Video's on youtube showing what to check. Learn to double check your mechanic ! How to Fix Car with No Heat Easy

You should check out www.reliable-store.com they have info on repair, service, wiring diagram, electrical diagram, fuse diagram, torque specs, troubleshooting, PCV, gear box, owner's/service/repair/parts manual, fault codes, error codes, etc everything on all vehicles. must check it out

never wash or wet an air filter as it closes up the pores in the paper element fit a new element and then run the fault codes or reset the ECM using a scan tool

Modern vehicles are bristling with sensors, all reporting to the Engine Management System. These need to be inspected, for possible loose wires, bad connections or even broken wires.

no try putting a couple of injector cleaner in the tank to clean the dirty injectors there is a screw in the side of the ECM on Nissan vehicles that has to be turned before codes are revealed and there are stored codes , as misfires ( what you experience ) will be recorded

hi Have you had a fuel filter changed? Try that first. Thanks

It you're losing coolant and it overheats, that's a sign of a bad head gasket. Get that checked before you spend any more time or money on anything else

hi check the engine oil. if there was no oil left in the engine then good chance of engine seizing. do not carry on starting the engine as you will bend the valves.

You are right, if the timing chain were bad it would have the problem all the time , not just cold . This to me sounds like a coolant temp sensor . Hooking up a scan tool that can view engine sensor data , i would check the sensor parameters . most noteably the coolant temp an IAT - intake air temp. after sitting over night these should be very close. Reading Performance Information Data PID Car OBD Diagnostics ECU Chip...

Broken ring, bad injector, or bad valve guide.

The Sentra has a screen type filter which a part of the in-tank fuel pump. It is not considered to be a replaceable part unless the fuel pump is replaced.

Take extra caution while performing dirve cycles on public roadways. Drive cycles can be difficult to follow under normal driving conditions. Begin by: - Start the engine. Idle the engine in drive for two and a half minutes with the A/C and rear defroster on. - Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. - Hold at a steady speed of 55 mph for three minutes. - Decelerate (coast down) to 20 mph without braking or depressing the clutch. - Accelerate back to 55 to 60 mph at ¾ throttle. - Hold at a steady speed of 55 to 60 mph for five minutes. - Decelerate (coast down) to a stop without braking. If all other emissions systems are functioning properly, completing the drive cycle above will set the "readiness flags" required to pass the smog check. It will not hurt to perform the drive cycle 2 or 3 times before the smog test.

You can go to kellybluebook.com and get more information on this vehicle.

13 years old, what service history?

Hopefully, you didn't drive it any of those three days that it didn't have oil in it. If you did, chances are very good that you damaged the engine. You say the car is shaking - do you mean the engine is shaking when you're sitting still? Is it also making strange noises - knocks, clunks, squeaks/squeals? Then you almost certainly have damaged the engine. Putting oil in the engine does not heal the damage that is already there. Expect that your engine is going to seize or just quit running soon.

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If you have overheated your car recently, then you possibly have a blown head gasket. Take off your oil fill cap (with engine off) and inspect to see if there is a milky substance underneath the cap. If so, bad news- head gasket. You can also check the oil dipstick for the same substance to verify bad head gasket, but usually it has to be pretty bad (gasket) or driven for a while before exhibiting any signs. The oil fill cap is a pretty good indicator. With the car cool, you can open the radiator cap and look and smell for anything other than coolant (fuel smell or oil slick). If so, probable head gasket.