2008 maxima shaking aggressively
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2008 maxima shaking aggressively
I would like to apologize in advance for the long description of my issues. I wanted to be as thorough as possible and provide as much information as I may need to figure out what I don’t know.
I have a 2008 Nissan maxima with 200k, I bought the car used a couple years ago and it’s been a little learning project car for me due to fact it was my 2nd car. I have replaced all the motor mounts, the shocks, the brakes, valve body in the transmission and repaired a leaky power steering system. New tires, body work , ignition coils, plugs, camshaft sensors, crankshaft sensor, and 1 o2 sensor(downstream).
The car running fine for the most part until recently. I have been getting a P0340 code and replaced the camshaft sensor bank A sensor 1 and replaced the connector as well. However the code still pops up and all the lights come on, tire pressure, tcs,abs,check engine. I have replaced the sensor for the 3rd time just to make sure..I have tested the wiring, sensor and everything seems to be in order. Not a huge issue, but when I clear the codes on my OBD two, the engine ceases to run shuts off automatically. The car can be a little hard to start, sometimes takes a few seconds for it to fire up. And as of the last few days, the car has been bucking pretty bad anytime I put a load on the motor. I can drive down the road, but I need to feather the accelerator in order to make my ride a little more comfortable it’s not throwing any other codes. However, the dipstick smells a bit like gas and you can smell gas when you first start it up quite a bit. I’ve looked at the live data and trying to make heads or tails of that information just lead to more questions. At first my long-term fuel trim was showing zero and was not moving and my short term fuel trims seem to be Decent although it was getting up into the 20s every once in a while and then I thought maybe I need to replace my O2 sensors there’s four of them two of them upstream and two downstream. I’ve heard that cleaning doesn’t do much for those so I replaced one of the downstream O2 sensors And still find my car doing the same thing. When you first start it up when the car is cold. It seems to drive fine, although you can hear or feel like a pulsating in the engine, but after the car warms up that pulsating turns into full on shaking, I’m to the point where I need to either bring it to a mechanic or have a professional help me troubleshoot what’s wrong with this vehicle? I don’t think is shaking stems from any type of suspension or tire or driveline I believe it’s something stemming or coming from the engine like a misfire of sorts pretty bad one.Any advice would be helpful I’m not a mechanic. I just play one on TV. Thank you in advance. I look forward to hearing from you.
I have a 2008 Nissan maxima with 200k, I bought the car used a couple years ago and it’s been a little learning project car for me due to fact it was my 2nd car. I have replaced all the motor mounts, the shocks, the brakes, valve body in the transmission and repaired a leaky power steering system. New tires, body work , ignition coils, plugs, camshaft sensors, crankshaft sensor, and 1 o2 sensor(downstream).
The car running fine for the most part until recently. I have been getting a P0340 code and replaced the camshaft sensor bank A sensor 1 and replaced the connector as well. However the code still pops up and all the lights come on, tire pressure, tcs,abs,check engine. I have replaced the sensor for the 3rd time just to make sure..I have tested the wiring, sensor and everything seems to be in order. Not a huge issue, but when I clear the codes on my OBD two, the engine ceases to run shuts off automatically. The car can be a little hard to start, sometimes takes a few seconds for it to fire up. And as of the last few days, the car has been bucking pretty bad anytime I put a load on the motor. I can drive down the road, but I need to feather the accelerator in order to make my ride a little more comfortable it’s not throwing any other codes. However, the dipstick smells a bit like gas and you can smell gas when you first start it up quite a bit. I’ve looked at the live data and trying to make heads or tails of that information just lead to more questions. At first my long-term fuel trim was showing zero and was not moving and my short term fuel trims seem to be Decent although it was getting up into the 20s every once in a while and then I thought maybe I need to replace my O2 sensors there’s four of them two of them upstream and two downstream. I’ve heard that cleaning doesn’t do much for those so I replaced one of the downstream O2 sensors And still find my car doing the same thing. When you first start it up when the car is cold. It seems to drive fine, although you can hear or feel like a pulsating in the engine, but after the car warms up that pulsating turns into full on shaking, I’m to the point where I need to either bring it to a mechanic or have a professional help me troubleshoot what’s wrong with this vehicle? I don’t think is shaking stems from any type of suspension or tire or driveline I believe it’s something stemming or coming from the engine like a misfire of sorts pretty bad one.Any advice would be helpful I’m not a mechanic. I just play one on TV. Thank you in advance. I look forward to hearing from you.
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