Question about 2003 Nissan Altima

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When is running start to shake like if going to start off and the check engine light start to blink but all stop and the car continue run without problem

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A blinking check engine light indicates a missfire in one or more engine cylinders, have a trouble code test run to determine which cylinder(s) is missfiring.

Posted on Jun 30, 2009

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My 2003 jaguar s stype v8 started to shake from the engine while parked and stopped at a red light and my check engine light starts blinking and restricted performance light comes on


run the fault codes to look for injector problems
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01 dodge stratus r/t when I start the car all the lights in the car light starts blinking once its running for a while it stops but when I'm going up hill they blink again


if your talking bout check engine light or ses meaning service engine soon light is blinking u have a cylinder that isn't firing, usually cause by ignition coil, but fuel injector, crank sensor can cause it but most times its a coil u can stop at any auto parts store get the check engine light read

Mar 07, 2014 | Cars & Trucks

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Car suddenly started shaking malfunction indicator lamp displayed


When the light comes on, one or more diagnostic trouble codes (DTC) are stored in the engine control module. These DTCs remain even if the light goes out. To address a Check Engine Light problem, the DTCs are retrieved and the appropriate troubleshooting information is followed in order to determine the problem.

The four most common Check Engine Light scenarios and what to do:
* The Check Engine Light turns on and off or flickers.
If the Check Engine Light comes on in the city but goes off on the freeway, then the fault is present during city driving conditions. Pay attention to whether or not the vehicle runs or drives any differently when the Check Engine Light illuminates. If vehicle performance does change, drive the car as little as possible and take it to be checked by a service professional as soon as possible. If there is no change in vehicle performance, you can drive home, but have it inspected as soon as possible. In this condition, you run a risk of the vehicle dying or not starting.

* The Check Engine Light comes on and stays on.
If the Check Engine Light illuminates constantly during driving with no noticeable driving or performance problems, there is a permanent fault in the emission control system. When this happens, the computer that controls the emission system usually has a backup program that runs while the fault is present. (These backup programs are often referred to as "limp home" mode programs.) You should get the vehicle serviced as soon as possible, but in most cases, the vehicle will continue to operate, though you run a risk of it dying or not starting.

* The Check Engine Light illuminates, stays on, and there are performance problems.
This means that a vital component of your emission control and engine management system has a serious problem. It usually involves a component or system needed for the vehicle to run at all. In most cases, drive the vehicle as little as possible. In many cases, the vehicle is not safe to drive at all -it could stop or stall out at any moment. It is best to pull over to a safe place and have the vehicle towed to an automotive diagnostician for a thorough inspection and repair.

* The Check Engine Light light comes on and blinks in a steady pattern while driving.
Don't confuse this steady pulsing of the Check Engine Light light (usually one or more flashes per second) with a flicker (see above). The Check Engine Light may stay on steadily or it may flash when the vehicle is accelerated. This is very serious. There is a severe failure of the emission control system that is causing the engine to misfire to the point that the catalytic converter is damaged each time the Check Engine Light flashes. It may mean that the catalytic converter is overheating to the point that it will glow red or, in extreme cases, start a fire on the underside of the vehicle. Immediately pull over to a safe place and have your vehicle towed to an automotive diagnostician for repair. Vehicles can be severely damaged and even destroyed by fire if this condition is ignored for too long.

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Jun 18, 2012 | 2007 Volkswagen Jetta 2.5 Sedan

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2003 SATURN VUE SERIVE ENGINE SOON LIGHT IS BLINKING ON AND OFF RAN THE OBDII READER AND CODE P0304 CYLINDER MISFIRE CAME UP I CHANGE SPARK PLUGS AND BOOTS BUT CAR STILL DRIVES ROUGH SHAKES AND WHEN PARKED...


The P0304 indicates the #4 cylinder is misfiring. The flashing light means the cylinder is not firing at all...It could be several things causeing it, coil, wires, plug, injector or vacuum leak. Do not drive your vehicle until you have this repaired, as it will lead to further more costly problems. Good luck, i hope this helps.

Jul 27, 2011 | 2003 Saturn VUE

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I have a mazda protege 2003 and my car stinks like rotten eggs when i put on the gas and on top of that, my engine light is blinking and my car shakes when i stop at a red light!


i have a 2003 mazda protege. this is the third time my check engine light has come on. the first time the car started to shake when i stopped at a light and the check engine light came on. i had a readout done and it said misfire. i took it to a garage and they changed my spark plugs and wires. 2 weeks later it came on again and my car started to shake whenever i stopped. readout said misfire. they fixed the coils. it has been 2 weeks since then and my car started shaking again whenever i stop and the light came on. what could possibly be wrong with it?

Feb 06, 2010 | 2003 Mazda Protege

1 Answer

Engine Light Is On


Hmm...I suspect you have an injector problem. The injector connectors are inside the crankcasing, and as such are constantly sprayed with oil It is possible that a seal on a connector has gone, or a connector isnt clipped properly. This gives both the engine fault light and the 'shaking' which is the car running on three cylinders...the 3.0 engine is surprisingly good at running on three cylinders...
Either take off the turbo, insulation jacket, coolant pipe and crankcase and clean the connectors & refit, or go find a mechanic! The job is quite an involved one that needs much confidence...

Jan 12, 2009 | 1998 Isuzu Trooper

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