The repair saga continues with the 97x...
I am currently getting the following codes-
P0014:
Camshaft Position B - Timing Over-Advanced or System Performance (Bank 1)
P0017:
Crankshaft Position - Camshaft Position Correlation
P0305: Cylinder 5 misfire
P0300: Random/multiple cylinder misfire
Edit: Initially it showed a MAP sensor error code along with the P0014 and P0017. The MAP error code was not listed this morning on my scanner. I'll check the freeze frame data when I get home today as well. I was too tire and it was too late to even think about doing anything after driving through that snow storm.
I have only received the P0305 once in the past few weeks and now it's pretty consistently P0300.
I first started to feel this vibration a few months ago when I replaced the spark plug, intake manifold gaskets, and cleaned the throttle body. The vibration then was so light that anyone else would probably not noticed it. Thinking that the vibration was an engine mount, I replaced the passenger's side motor mount, still getting a vibration. The misfire codes have been happening for about 3-4 weeks now, about a week or so after the spark plugs were installed, but they did happen very frequently. The cam and crank codes have only been happening for about a week or so. When I get the cam and crank codes the vehicle either stalls out or runs very rough, until the vehicle reaches operating temp. All parts that were replaced were AC Delco. The spark plugs were those $7 AC Delco plugs that Amazon had, that had a possibility of being counterfeit. I never took them back out to check the spelling. If it's not too cold tonight I might check those out.
I did an oil change a week ago and have already replaced both the VVT Solenoid and the Cam Sensor. VVT Solenoid is an AC Delco, but the cam sensor is a Standard Ignition sensor from O'Reilly's. They were the only ones who even had a cam sensor in stock this weekend. I have no problem ordering it from Amazon and returning it if it comes down to that being the issue. I did just pull the wiring diagrams for the cam and crank sensors. I'm going to do some electrical testing tonight. My fear is that this is an actual camshaft problem, that I really don't want to mess with right now. I die a little bit every time I think about taking the oil pan off to clean it, lol.
I don't think it's the driver's side motor mount though, could be but I doubt it. The vibration is worse now though. It does vibrate while parked and while in neutral. It will start vibrating around 1000 rpm up to 2000 rpm. It is the worst right at 1500 rpms, while driving/under load. I was driving on the highway heading home yesterday after replacing the harmonic balancer. I noticed that right at 50 mph the rpms drop from 2000 to about 1500. It feels like the engine is getting bogged down, not losing rpms because of a gear shift.
Edit: I did change the driver's side front wheel bearing. It was not AC Delco though, I bought that before I knew how important AC Delco was on these vehicles. I was also thinking that the vibration could be related to a bearing, CV Axle, or drive shaft out of balance.
I am currently getting the following codes-
P0014:
Camshaft Position B - Timing Over-Advanced or System Performance (Bank 1)
P0017:
Crankshaft Position - Camshaft Position Correlation
P0305: Cylinder 5 misfire
P0300: Random/multiple cylinder misfire
Edit: Initially it showed a MAP sensor error code along with the P0014 and P0017. The MAP error code was not listed this morning on my scanner. I'll check the freeze frame data when I get home today as well. I was too tire and it was too late to even think about doing anything after driving through that snow storm.
I have only received the P0305 once in the past few weeks and now it's pretty consistently P0300.
I first started to feel this vibration a few months ago when I replaced the spark plug, intake manifold gaskets, and cleaned the throttle body. The vibration then was so light that anyone else would probably not noticed it. Thinking that the vibration was an engine mount, I replaced the passenger's side motor mount, still getting a vibration. The misfire codes have been happening for about 3-4 weeks now, about a week or so after the spark plugs were installed, but they did happen very frequently. The cam and crank codes have only been happening for about a week or so. When I get the cam and crank codes the vehicle either stalls out or runs very rough, until the vehicle reaches operating temp. All parts that were replaced were AC Delco. The spark plugs were those $7 AC Delco plugs that Amazon had, that had a possibility of being counterfeit. I never took them back out to check the spelling. If it's not too cold tonight I might check those out.
I did an oil change a week ago and have already replaced both the VVT Solenoid and the Cam Sensor. VVT Solenoid is an AC Delco, but the cam sensor is a Standard Ignition sensor from O'Reilly's. They were the only ones who even had a cam sensor in stock this weekend. I have no problem ordering it from Amazon and returning it if it comes down to that being the issue. I did just pull the wiring diagrams for the cam and crank sensors. I'm going to do some electrical testing tonight. My fear is that this is an actual camshaft problem, that I really don't want to mess with right now. I die a little bit every time I think about taking the oil pan off to clean it, lol.
I don't think it's the driver's side motor mount though, could be but I doubt it. The vibration is worse now though. It does vibrate while parked and while in neutral. It will start vibrating around 1000 rpm up to 2000 rpm. It is the worst right at 1500 rpms, while driving/under load. I was driving on the highway heading home yesterday after replacing the harmonic balancer. I noticed that right at 50 mph the rpms drop from 2000 to about 1500. It feels like the engine is getting bogged down, not losing rpms because of a gear shift.
Edit: I did change the driver's side front wheel bearing. It was not AC Delco though, I bought that before I knew how important AC Delco was on these vehicles. I was also thinking that the vibration could be related to a bearing, CV Axle, or drive shaft out of balance.
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