Question about 2003 Saturn VUE

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2003 saturn vue missfire

I have a misfire on cylinders 1,3 and 5. where do i start

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Test the coil pack that feeds those wires. Be sure it is mounted tight.Check ground wires and supply wires to the packs.

Posted on Jun 24, 2009


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2003 saturn vue 3.0 codes p0301,p0302,p0303,p0304 the engine is missing on and off not consiste worst when it hot fuel presure 58 psi

Random multiple cylinder misfires are usually the DIS module or the crank sensor or wires to the crank sensor.

Dec 19, 2017 | Saturn Cars & Trucks

1 Answer

My 2003 Saturn vue has been shaking slightly when I accelerate. I'm scared to go anywhere far due to this. What could it be?

Possible cylinder misfire. Is the check engine light on/flashing? If so have the codes scanned to determine the source of the problem

Dec 26, 2015 | Saturn Cars & Trucks

2 Answers

Engine Misfire

Here's a link to your code problem,P0300 is their's a misfire and every number after 300,like 301 means cylinder one,which this is for both of your codes,go down the list and see if it's your problem.These codes have many faults,have to trouble shoot to fix. P0301 OBD II Trouble Code Here's the P0303 code. P0303 OBD II Trouble Code

Jun 22, 2015 | Saturn Cars & Trucks

1 Answer

Where is ignition coil located on my 2003 Saturn vue, (6 cyl., 3.0). Misfire in cyl. #2

The coils are on the valve covers. Here is a picture. #2 cylinder is in the front head and is on the far left. f0f26624-87ab-42ea-8895-8c6ac1d3fa36.jpg

Oct 20, 2014 | 2003 Saturn VUE

1 Answer

I have a saturn vue with a front wheel drive v6. it has a check engine light on . went to autozone the code showed a missfire on cylinder, all six cylinders. I changed the spark plugs didnt figure it would...

the misfire fault (p0300 for random misfires or p 0301-08 for individual cylinder misfires) is seldom as a result of plugs
It is more likely from
low fuel pressure ,pump , EVAP not venting ,dirty injectors , wiring to the injectors , injector control, or ECM
simple fix is to put a can or 2 of injector cleaner in the tank and go for a good drive
next is to replace the fuel filter
more involved is to have the fuel pressure tested to check for pump and pressure regulator operation

Dec 04, 2017 | 2004 Saturn VUE

1 Answer

Misfire no code found could faulty fuel cap be the problem

The short answer is no.
A missfire would be a drop in RPM for one cylinder. Usually fuel, spark, or compression is the cause. Could also be a transmission issue.
A faulty gas cap should also set a code since the computer would not be able to vent the tank correctly.

Jul 25, 2013 | 2006 Saturn Vue

1 Answer

Saturn vue 2003 how to fix p842 p700

I believe those are misfire codes on your cylinders. Tune up may be needed.

Oct 04, 2012 | 2003 Saturn VUE

1 Answer

2002 saturn vue cylinder 1,3,5 misfiring when swapped coil pack it went away now cyl 2,6 misfiring.

having PO 304 = Misfire cylinder 4,PO 306 = Misfire cylinder 6, as I read above you have done the most. The thing that you have missed is to check whether the Catalytic Converter is faulty or not. To get an idea check whether you have a smell like rotten eggs at the end of the exhaust,you start having problems with cat and needs replacement. My advice before you go for a cat replacement is good to visit an MOT center and check your emissions and then you decide,

Aug 10, 2012 | Kia Rio Cars & Trucks

3 Answers


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

1 Answer

My 03 saturn vue is mis fireing. I replaced the spark plugs and coil pack. The promlem is still there

The first thing i would do is to make sure theres compression in the cylinder thats misfiring, if the compression is good then remove the control module and have it tested, lots of autopart stores will test the module, napa auto parts does testing, if that tests good then take a look at the injector and the connector, make sure the wiring to the injector is good, if thats good then i would swap injectors with another cylinder and see if the misfire moves to that cylinder, if it moves then you know its an injector. if the compression is low then i would do a decarbonizing with a motor vac machine, this cleans the pistons , valves and the injectors, hope this helps.

Nov 03, 2010 | 2003 Saturn VUE

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