This is the forum I have been seeking. Great stuff!
My beloved Sentra GXE was working sterlingly well since new, never giving me much grief except for the usual maintenance and a couple recalls, all documented here on this Website. That was until about early summer of 2005.
The catalytic converter died on me at 145,000 kms, and, thanks to the good folks at Scott Slipp Nissan, I only paid 1/3 the cost to replace - it was actually slightly out of warranty. No big deal.
The horn quit on me, they had to rewire the harnass.
The control arms needed replacing, bushings cracked, all one piece. Such is life.
The dealership replaced two O2 sensor that were probably the cause of my CC failure, and they told me there are two other ones that tend to go - what's up with four sensors?
I recently had the filler tube assembly totally replaced (it goes right into the tank) as the sensor indicated pinhole leaks. During my last visit, I saw a customer getting a new one of these for his Altima, seems to be a common problem.
Now, the familiar CEL is on, again. I notice there is no pressure when I open the gas cap - I thought there was supposed to be some? The tech at the dealership said there should be. The CC and filler tube assembly are both under repair warranty (1 year/20,000 kms) It seems that this car (maybe all of them are like this) seems to self-destruct, electronically, around 150,000 kms. These service engine soon lights are becoming a normal thing. If this new light is related to either of those afore-mentioned situations, at least I have some warranty. If not, I am out more money.
Is there supposed to be some pressure when I remove the gas cap? If so, I think that filler thing died on me, again.
This is the forum I have been seeking. Great stuff!
My beloved Sentra GXE was working sterlingly well since new, never giving me much grief except for the usual maintenance and a couple recalls, all documented here on this Website. That was until about early summer of 2005.
The catalytic converter died on me at 145,000 kms, and, thanks to the good folks at Scott Slipp Nissan, I only paid 1/3 the cost to replace - it was actually slightly out of warranty. No big deal.
The horn quit on me, they had to rewire the harnass.
The control arms needed replacing, bushings cracked, all one piece. Such is life.
The dealership replaced two O2 sensor that were probably the cause of my CC failure, and they told me there are two other ones that tend to go - what's up with four sensors?
I recently had the filler tube assembly totally replaced (it goes right into the tank) as the sensor indicated pinhole leaks. During my last visit, I saw a customer getting a new one of these for his Altima, seems to be a common problem.
Now, the familiar CEL is on, again. I notice there is no pressure when I open the gas cap - I thought there was supposed to be some? The tech at the dealership said there should be. The CC and filler tube assembly are both under repair warranty (1 year/20,000 kms) It seems that this car (maybe all of them are like this) seems to self-destruct, electronically, around 150,000 kms. These service engine soon lights are becoming a normal thing. If this new light is related to either of those afore-mentioned situations, at least I have some warranty. If not, I am out more money.
Is there supposed to be some pressure when I remove the gas cap? If so, I think that filler thing died on me, again.
Any ideas?
The reason we have four o2 sensors is due to the fact how our exhaust manifold is set up. For two exhaust ports it goes to one o2 sensor, which is for fuel mapping, goes through the 'cat.' Then the other o2 sensor reads it for emission reasons(worthless IMO!). Same goes for the other two exhaust ports.
Since you say the CEL is coming on a lot now. I would just invest in a OBD II code reader. They are starting to get pretty cheap. That way you could also tell us which code(s) are being thrown so we could help you even further. Auto Zone should read these for free.
On the pressure releases the gas cover...I really did not pay attention enough back when my car was running to see.
The CEL seems to have gone out, again, maybe overtightening the gas cap? Whatever, I am having my dealer check the sytem to see if the CC is OK. The other two O2 sensors are still original and could give me headaches; I'm guessing that faultiy O2 sensors can cause issues with the catalytic converter.
On future cars, I will ask the mechanics to inspect the O2 sensors more frequently.
Blame that on the poor roads in Nova Scotia, more than anything. With the control arms, 4W alignment, etc., it was a $600 job. I suspect that the bushings could have been replaced, separately, if I would have gone with a generic set-up - the car was up on the hoist, at the time, getting its inspection, so I kind of had to do it.......
Blame that on the poor roads in Nova Scotia, more than anything. With the control arms, 4W alignment, etc., it was a $600 job. I suspect that the bushings could have been replaced, separately, if I would have gone with a generic set-up - the car was up on the hoist, at the time, getting its inspection, so I kind of had to do it.......
You only have to pay for front end alignment since you can not align the rear on a alignment machine.
to answer your question about the fuel tank pressure....
in the morning there will be NO pressure.. but as the car and fuel warms up then pressure should always accure.
if pressure does not accure then the check engine light will come on.
BTW.. o2 sensors cant really be checked... when they start to wear out or fail then the check engine light will come on, but until it fails there is nothing to check or maintain.
I did ask the dealer to check the situation - the charcoal valve had become faulty. $210 later, I had it fixed and no light. The fuel system on this car has poor-quality electronics as that's been the crux of all my CEL's.
to answer your question about the fuel tank pressure....
in the morning there will be NO pressure.. but as the car and fuel warms up then pressure should always accure.
if pressure does not accure then the check engine light will come on.
BTW.. o2 sensors cant really be checked... when they start to wear out or fail then the check engine light will come on, but until it fails there is nothing to check or maintain.
You can check to see if they are still good.
Heat them up and put a digital multimeter on them. If voltage is created(this is when they are not connected to a harness or anything just by theirself) they are still good.
Linear Mode
