Bro, thanks a million. I have the same exact problem and anywhere I looked. I cannot find to see what the other one was cuz I was two of them one in the front one that was it for the second camshaft appreciate it man. Great video
@@SmithDiscusses Thanks a lot for your reply, my mechanic have replaced both upstream and downstream O2 sensors already, spark plugs as well, it's such a shame since I have desired to own a G5 for a long time, I bought this one as my project car to restore it but is giving me the trouble of my life with the high gas spending, cheers man.
@carlosjerson6730 I did detailed research on what it could be, and this is a copied list of what could be causing your issue: Poor gas mileage, especially a sudden drop in fuel efficiency, can be blamed on a number of issues. It can also be an indicator of a much more serious issue that if left un-repaired, can develop into an expensive repair. There are dozens of problems that can lead to a drop in gas mileage, some of them are serious and some can be easily corrected. Here are some of the more common issues that can affect the fuel efficiency of most cars. How this system works: The fuel system stores and supplies fuel to the car to help drive the engine. Fuel is mixed with air, atomized and vaporized in the engine intake system. It is then compressed in the engine cylinder and ignited which produces energy to move the pistons. There are different engine layouts and designs but most of them work in the same basic way. When the system is working as designed, and under certain conditions, maximum fuel efficiency will be achieved. Numerous factors can have an affect on fuel efficiency so it is usually a constantly changing number but a serious and sudden drop in miles per gallon is cause for concern and the vehicle should be inspected. Common reasons for this to happen: Dirty Oxygen Sensor: An oxygen sensor measures exactly how rich or lean the exhaust gases are when they leave the combustion chamber. The data is used by the vehicle computer to adjust the amount of fuel entering the engine. If the sensor is dirty or failing it can lead to a drop in miles per gallon. It can also lead to failed emission tests and a rough idle. Dirty Fuel Injectors: Fuel injectors spray fuel into the cylinders where it is mixed with air and ignited. Over time the fuel injector system can become clogged. This can lead to a drop in fuel efficiency as well as slow acceleration and the car not having enough power. If caught early, simply cleaning the injectors can solve the problem. As it progresses, the injectors may have to be replaced. Bad or Dirty Spark Plugs: Spark plugs ignite the fuel in the combustion chamber. If they are dirty or working incorrectly, it can cause the engine to misfire, leading to poor engine performance. This can lead to a lack of power as well as a big decline in fuel efficiency. Malfunctioning Mass Airflow Sensor: A mass airflow sensor detects the amount of air coming into the fuel injection system. It delivers that information to the vehicle's computer, which crunches the numbers and then delivers the proper amount of fuel to the air in the vehicle. A dirty airflow sensor will degrade fuel efficiently and lead to a rough idle and even stalling as the problem progresses. Misaligned Tires: Tires that are low or out of alignment can lead to a drop in fuel efficiency. Checking the tire pressure and have the alignment checked on regular basis can help prevent this problem. Defective Fuel Pump: Fuel delivery issues can drastically affect fuel efficiency. The fuel pump pulls fuel from the gas tank to the fuel injectors. The fuel pump can become clogged or malfunction. A bad fuel pump can lead to a rough running engine because it is not getting enough fuel. This will lead to a decline in gas mileage. If this issue is not addressed it will lead to a rough, idle, sputtering and stalling. Clogged Fuel Filter: A clogged fuel filter will also cause problems with gas mileage. The fuel filter screens out contaminants in the fuel, and over time it will become clogged. Fuel filters need to be replaced periodically. Stuck Brake Caliper: A stuck caliper on a disc brake or a stuck shoe on a drum brake can lead to a serious decline in gas mileage. In addition, any brake issue can make the vehicle dangerous to drive. If the decline in efficiency is accompanied by the vehicle pulling to one side, the brake system should be inspected immediately."
@@SmithDiscusses Good day to you my friend and many thanks for your very thorough and informative answer, I will follow through your list, please have a magnificent evening man.
2009 pontiac g5(not gt) 2.2 camshaft sensor is at the front top right(driver side) of engine not rear. The crankshaft sensor is at front right(driver side) bottom and above starter.
Turns out that taking the car to O'Reilly's will not shut the check engine light off. Something to do with software technology for GMC. I had to take it to the dealership for them to clear the check engine light. What a pain.
Question , is that a 2.2L or 2.4L motor? Also I saw a video where the sensor was on the front near the oil filter. Is there 2 sensors ? One in back and front? Thanks
@@SmithDiscusses I have a 2007 pontiac g5 gt and my motor is a 2.4L. My senor was right of the oil filter. Easy to get to and one bolt. Took it off and cleaned it and the access area. Never even took off the wires. All good here. Thanks
Not sure why there are different locations for different motors and year of vehicle, but I was told this was the location for mine. The part matched, so it has to be where mine was. Totally weird, I know, but other than that, I would have to see other years and motors for this model.
Bro, thanks a million. I have the same exact problem and anywhere I looked. I cannot find to see what the other one was cuz I was two of them one in the front one that was it for the second camshaft appreciate it man. Great video
I am glad it helped.
Very informative video, many thanks, any idea why a 2008 Pontiac G5 GT would have very high gas/mileage consumption?
My first guess would be a bad O2 sensor. Changing the spark plugs would be a good idea, too.
@@SmithDiscusses Thanks a lot for your reply, my mechanic have replaced both upstream and downstream O2 sensors already, spark plugs as well, it's such a shame since I have desired to own a G5 for a long time, I bought this one as my project car to restore it but is giving me the trouble of my life with the high gas spending, cheers man.
@carlosjerson6730 I did detailed research on what it could be, and this is a copied list of what could be causing your issue:
Poor gas mileage, especially a sudden drop in fuel efficiency, can be blamed on a number of issues. It can also be an indicator of a much more serious issue that if left un-repaired, can develop into an expensive repair.
There are dozens of problems that can lead to a drop in gas mileage, some of them are serious and some can be easily corrected. Here are some of the more common issues that can affect the fuel efficiency of most cars.
How this system works:
The fuel system stores and supplies fuel to the car to help drive the engine. Fuel is mixed with air, atomized and vaporized in the engine intake system. It is then compressed in the engine cylinder and ignited which produces energy to move the pistons. There are different engine layouts and designs but most of them work in the same basic way.
When the system is working as designed, and under certain conditions, maximum fuel efficiency will be achieved. Numerous factors can have an affect on fuel efficiency so it is usually a constantly changing number but a serious and sudden drop in miles per gallon is cause for concern and the vehicle should be inspected.
Common reasons for this to happen:
Dirty Oxygen Sensor: An oxygen sensor measures exactly how rich or lean the exhaust gases are when they leave the combustion chamber. The data is used by the vehicle computer to adjust the amount of fuel entering the engine. If the sensor is dirty or failing it can lead to a drop in miles per gallon. It can also lead to failed emission tests and a rough idle.
Dirty Fuel Injectors: Fuel injectors spray fuel into the cylinders where it is mixed with air and ignited. Over time the fuel injector system can become clogged. This can lead to a drop in fuel efficiency as well as slow acceleration and the car not having enough power. If caught early, simply cleaning the injectors can solve the problem. As it progresses, the injectors may have to be replaced.
Bad or Dirty Spark Plugs: Spark plugs ignite the fuel in the combustion chamber. If they are dirty or working incorrectly, it can cause the engine to misfire, leading to poor engine performance. This can lead to a lack of power as well as a big decline in fuel efficiency.
Malfunctioning Mass Airflow Sensor: A mass airflow sensor detects the amount of air coming into the fuel injection system. It delivers that information to the vehicle's computer, which crunches the numbers and then delivers the proper amount of fuel to the air in the vehicle. A dirty airflow sensor will degrade fuel efficiently and lead to a rough idle and even stalling as the problem progresses.
Misaligned Tires: Tires that are low or out of alignment can lead to a drop in fuel efficiency. Checking the tire pressure and have the alignment checked on regular basis can help prevent this problem.
Defective Fuel Pump: Fuel delivery issues can drastically affect fuel efficiency. The fuel pump pulls fuel from the gas tank to the fuel injectors. The fuel pump can become clogged or malfunction. A bad fuel pump can lead to a rough running engine because it is not getting enough fuel. This will lead to a decline in gas mileage. If this issue is not addressed it will lead to a rough, idle, sputtering and stalling.
Clogged Fuel Filter: A clogged fuel filter will also cause problems with gas mileage. The fuel filter screens out contaminants in the fuel, and over time it will become clogged. Fuel filters need to be replaced periodically.
Stuck Brake Caliper: A stuck caliper on a disc brake or a stuck shoe on a drum brake can lead to a serious decline in gas mileage. In addition, any brake issue can make the vehicle dangerous to drive. If the decline in efficiency is accompanied by the vehicle pulling to one side, the brake system should be inspected immediately."
@@SmithDiscusses Good day to you my friend and many thanks for your very thorough and informative answer, I will follow through your list, please have a magnificent evening man.
Thanks for the help! Trying to save money and I have lots of stuff to do on my car. Transmission pan is bent... Thats going to be one h*ll of a b*tch.
2009 pontiac g5(not gt) 2.2 camshaft sensor is at the front top right(driver side) of engine not rear. The crankshaft sensor is at front right(driver side) bottom and above starter.
Thanks all good here now. I have a 2007 pontiac gt gt 2.4L and it's where you stated. I just cleaned it and reused it.
That’s the coolant hose for the heater core.
Thanks. I thought that was the other hose next to it.
Hey that looks like it's on the driver side
Yes, it was.
Turns out that taking the car to O'Reilly's will not shut the check engine light off. Something to do with software technology for GMC. I had to take it to the dealership for them to clear the check engine light. What a pain.
pull the negative cable for 10 mins. free of charge
I did that beforehand. It didn't work for some reason.
Question , is that a 2.2L or 2.4L motor?
Also I saw a video where the sensor was on the front near the oil filter. Is there 2 sensors ? One in back and front?
Thanks
Not sure. When my friend comes back, I will check it out and reply.
@@SmithDiscusses I have a 2007 pontiac g5 gt and my motor is a 2.4L. My senor was right of the oil filter. Easy to get to and one bolt. Took it off and cleaned it and the access area. Never even took off the wires. All good here. Thanks
Not sure why there are different locations for different motors and year of vehicle, but I was told this was the location for mine. The part matched, so it has to be where mine was. Totally weird, I know, but other than that, I would have to see other years and motors for this model.