2007 saturn vue redline11/23/2023 ![]() This will cause the cylinders to misfire, and it’ll throw P0304 if the leak is around that specific cylinder on the intake manifold. Vacuum leak– If your Vue has a vacuum leak, it can be difficult for the PCM to get the right air/fuel mixture.You’ll likely see P0171 and/or P0204 with a bad injector. Here’s a good video on how to diagnose an injector it can be a little tricky. Bad Fuel Injector– If you have a fuel injector that has failed, it won’t be able to properly atomize the fuel, and you’ll get P0304.Coil Packs– Coil packs rarely go bad, but when they do, they can cause P0304 in your Saturn Vue.Here’s how to tell if your plug wires are bad (video). Spark Plug Wires– On most modern engines, the plug wires are not nearly as long as they once were (if your vehicle even has them), but they can still go bad.Here’s a great video on verifying a spark plug is bad. That being said, a bad spark plug is the number one offender when it comes to P0304. Your Vue likely has iridium plugs that need to be changed very infrequently. ![]() Look at the electrodes and see if they are in good shape. ![]() Bad Spark Plugs– A fouled spark plug is the most common cause of P0304.Here are the most common P0304 Saturn Vue causes they are presented somewhat in order from most to least likely to be causing the code in your vehicle: P0304 OBD II Code Causes: Saturn Vue A fouled iridium plug vs. You may smell raw gas coming from the tailpipe.Your Vue may produce excess vibration, especially at lower RPM.Your vehicle may run rough, be down on power, and stall.There may be no noticeable symptoms at all. Here are the most common symptoms of P0304 in the Saturn Vue. If one of the above variables is off, your Vue’s fourth cylinder will misfire, or it won’t fire at all. Compression– The air-fuel mixture must be compressed during the engine’s power stroke.Spark– The spark plug needs to fire at the right time and at the right temperature (diesel excluded).Air– It needs to be metered by your Vue’s mass air flow sensor or MAP sensor, so the powertrain control module (PCM) knows exactly how much air to let into the combustion chamber.Fuel– In the right quantity (around 14.7 parts air to one part fuel).In order for an engine to burn fuel efficiently, each cylinder needs the following: On inline engines, the fourth cylinder will usually be the fourth in from the engine accessories.Ī quick Google image search will confirm the correct cylinder (include your Vue’s model year and engine type), or they can print it up for you at most parts counters. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine. P0304 is a cylinder-specific misfire code, meaning only your Vue’s fourth cylinder has a misfire.īefore you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder’s location. P0304 Definition: 4’th Cylinder- Misfire Detected 4’th Cylinder ![]() The most common repair for P0304 is changing the spark plug in cylinder four. Unlike a lot of the OBDII codes, this code has to do directly with engine combustion, and driving with a misfiring engine can damage your Vue’s catalytic converter. Repairing P0304 should be considered a high priority. If it’s bad enough to cause your Vue’s check engine light to flash, avoid driving your vehicle altogether until you find the misfire and repair your engine. P0304 is a drivability concern and should be dealt with right away. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your vehicle’s fourth cylinder is misfiring. If your Saturn Vue has the P0304 trouble code, you should know that it’s about as common of a code as there is.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |