2003 Nissan Altima Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Nissan Altima

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2003 Nissan Altima Problems

Check Engine Light Due to Catalytic Converter Failure

The catalytic converter closest to the cylinder head can fail causing illumination of the Check Engine Light. Prompt repair of this problem is recommended because the catalyst material can be sucked into the engine and cause internal damage.

Check Engne Light, Misfire, Rough Idle

An engine vacuum leak from the  intake manifold gasket may cause the engine to misfire or have a rough idle which may also illuminating the Check Engine Light.

Engine Cranks and Doesn't Start or Runs Rough

The camshaft driven distributor can leak oil and cause a malfunction of the crankshaft position sensor. The engine may crank but not start or run very poorly.

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2003 Nissan Altima Questions

Why does the car not crank at times? Notice that it will start up fine and then (1 answer)

in a day or two, it will start doing the same thing. In order to get it to start, I have to keep holding it down for a while, hold it down again for while until it starts? Is there a recall on this for the 2003 Altimas?

Have misfire code 304. Replace about everything, so what is wrong? (2 answers)

I have replaced coil pack, spark plugs, fuel pump, O2 sensors and still running rough. I checked again and still has misfire code 304. Need Help Soon !!

Car will idle but can't give it gas, we have replaced fuel pump,throttle body, (1 answer)

Have also replaced mass air flow sensor, crankshaft sensor and dropped the exhaust. Still same results. Any ideas what to try next?

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2003 Nissan Altima Recalls

The Eingine May Stall Without Warning

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.

Nissan Recalls 2002-2003 Altimas Due to Defective Gas Tank

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.

Recall 03V084000
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.

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2003 Nissan Altima Reviews

03 Nissan Altima- 83,000 Runs Rough Missfireing Replace Plugs Coils, 87,000 Catalytic Converter Failure substrate goes into engine replace cat. Car begens to burn oil eventualy a quart and a half a week. Dealer adv bad engine miss fire bad cat blown head gasket. I had alway compained the car let in to much heat from the engine compartment as if the heater was on when vent fan was used nissan sa...
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 becam...
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...

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