What happens if you misfire the cylinder 4 on a Yukon?
It also can cost money to ignore it, since driving with a misfire can damage the vehicles catalytic converter. The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 4 into the exhaust. Mileage may suffer as well when your Yukon has P0304 as well.
What causes the p0304 trouble code on a GMC Yukon?
There are quite a few things that can cause the P0304 trouble code to trigger the GMC Yukon. Here are the most common problems that will throw the code. They are presented somewhat in order from most to least likely to be causing the code: Bad Spark Plugs – Spark plugs are one of the most common causes of P0304.
What was the cause of the p0304 cylinder 4 misfire?
I haven’t had any DTC or DIC readings that indicated the traction control or stabilink was malfunctioning, only the P0304 #4 misfire, so I don’t suspect, but cannot rule out a throttle body or TPS fault. Doesn’t appear to be burning any oil either.
Where is the cylinder 4 on a GMC Yukon?
An important thing to understand when finding the location of Cylinder 4 is that it’s going to be the 4’th cylinder in the firing order of the vehicle, and not the 4’th cylinder that you might see when looking at the engine. The P0304 trouble code will trigger the Yukon’s service engine soon light. The vehicle itself may begin to run rough.
It also can cost money to ignore it, since driving with a misfire can damage the vehicles catalytic converter. The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 4 into the exhaust. Mileage may suffer as well when your Yukon has P0304 as well.
An important thing to understand when finding the location of Cylinder 4 is that it’s going to be the 4’th cylinder in the firing order of the vehicle, and not the 4’th cylinder that you might see when looking at the engine. The P0304 trouble code will trigger the Yukon’s service engine soon light. The vehicle itself may begin to run rough.
How to troubleshoot a GM Truck misfire?
This isn’t the only symptom that your GM van, pickup or SUV might experience… here are some more that you might see: P0300: Random Cylinder Misfire. P0301: Cylinder #1 Misfire. P0302: Cylinder #2 Misfire. P0303: Cylinder #3 Misfire. P0304: Cylinder #4 Misfire. P0305: Cylinder #5 Misfire. P0306: Cylinder #6 Misfire. P0307: Cylinder #7 Misfire.
What makes a GM 4.8L misfire engine stall?
P0306: Cylinder #6 Misfire. P0307: Cylinder #7 Misfire. P0308: Cylinder #8 Misfire. Really bad gas mileage. Lack of Power when you accelerate your van, pickup or SUV. Engine may start, run for a few minutes and stall.
Are there any issues with the GMC 5.3L V8?
GM has very common issues with their V8 engines. Mainly the 5.3L engines with AFM (active fuel management). The AFM lifters tend to fail, and stick or collapse. Keeping good oil, and plenty of it in the engine, is KEY. These engines also have a bad oil consumption issue, which GM say is “in their specs”.
What causes the lifter on a GMC misfire to fail?
Mainly the 5.3L engines with AFM (active fuel management). The AFM lifters tend to fail, and stick or collapse. Keeping good oil, and plenty of it in the engine, is KEY. These engines also have a bad oil consumption issue, which GM say is “in their specs”.