The external seal on the engine oil cooler can fail and create an oil leak.
Resources for the Repair and Maintenance of your 2003 Nissan Altima
2003 Nissan Altima
2003 Nissan Altima Problems
The engine may stall at times due to a failed crankshaft position sensor and/or camshaft position sensor, These sensors can fail intermittently as they warm with the engine. Sensors on certain models have been recalled by Nissan and will be replaced as necessary. Please visit our recall section for this model to see if your vehicle is covered by this recall.
The AC system may blow warm air due to refrigerant loss caused by a leaking low pressure AC hose. These hoses commonly develop a leak at the hose crimp connection.
The engine mount on the right side can wear prematurely and cause excessive engine movement.
The front struts can wear prematurely and create a knocking noise when driving over bumps.
2003 Nissan Altima Recalls (Recent)
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The engine coolant temperature can vary at the coolant sensor due to its unique location. If these variations are large enough, a brief interruption in the signal output from the sensor may occur. If the signal interruption is so brief that the electronic control module (ECM) logic does not have time to diagnose the condition, the engine may stop running without warning. This condition will commonly occur only at low speeds. If the engine stalls without warning, a crash may result. Dealers will reprogram the ECM to correct this concern. The Nissan recall number is R0606.
Summary: ON CERTAIN VEHICLES EQUIPPED WITH THE 2.5 LITER ENGINE, THE EXHAUST PIPE HANGER PIN MAY CATCH DEBRIS FROM THE ROAD THAT COULD BE IGNITED BY CONTACT WITH THE MAIN CATALYST.Learn more »
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Nissan is recalling 2002-2003 Altimas in cold-weather states because in extremely cold temperatures, moisture in the fuel tank could freeze and form ice crystals, which may obstruct the suction opening of the fuel pump. This can prevent the supply of fuel to the engine and cause the engine to stop, which could result in a crash. Dealers will install a screen at the suction opening of the fuel pump.
2003 Nissan Altima Questions and Answers
the heater blows cool or cold at idle, is it true the temp sensor in the front of the car can cause this. if possible is there somewhere i can find the info on how the system works without buying a...
Can I use synthetic oil if it only had regular oil?
repair man said $1,300 to fix it
Ihave a noise inside the car.The noise sounds like it is near the gas ped and rear seat you can here the same noise under the hood.It sounds like it is from the fuel injectors and down the fuel lin...
2003 Nissan Altima Reviews
2003 Altima 3.5L SE V6 - catalytic converter went out at about 100K and got sucked up into engine resulting in later engine failure. Cost $7K to replace engine. This is common with the 2.5 4-banger so what happened to me? Also, before engine began to fail I had a rattling noise in the engine which turned out to be the timing belt tensioner. I wasted $2K getting this repaired on what later became a failed engine. Why didn't Nissan notice failed engine when working on tensioner?
inherited my 2003 2.5 altima with 30k on it. one of my sensors went bad at about 57k. other than that there were no other problems. this car has good power, even off the line, for a four cylindar. it handles extremely well,feels solid, and has very a good braking distance. the interior is roomy and comfortable.the exterior is pleasing to the eyes,looking more german than japanese in its styling. So, far I love this car.
This car has worked amazingly well with minimal maintenance and I just love my car. The only thing is that the car gets between 20-24 miles to the gallon.
Nissan is a lousy company when it comes to treatment of its customers and build of their product.
I have 2003 Altima with 90,000 miles.All the sensors are going bad or something the dealer told me. Replace the vec. sensor and the speed sensor and it is dtill messed up.I ws told now do the ECM and TCM whatever that is now. Will not buy another one!