My truck had a P0300 check engine light a few weeks ago. Truck had a rough idle for a week or so before the light came on. According to Autozone reader, it said it was likely ignition coil or plugs. I bought new plugs and coils and swapped everything out. Reset check engine light and all seemed well. About 3 days later, the light came back on so I contacted the dealership to schedule an appointment. They told me I would have to drop my truck off for a minimum of 48 hours for them to run diagnostics.
Back story - several months ago had to have an exhaust manifold replaced (under warranty) due to cracking. Had to rent a car for 5 days and was told by the dealership that Dodge would reimburse me since this is a warranty issue. Once the service was completed, Dodge said no reimbursement because I don't have a service contract. So I am hesitant to drop my truck off again because I shouldn't have to rent a car for them to run diagnostics.
So I scheduled an appointment with a local mechanic, but day of the appointment the light was off again so they couldn't find a code and had no idea what to check. The light has come back on intermittently for the past several days and now there is an idle surging occasionally, especially when I am in reverse. Truck still idles rough and seems to have an issue. Maybe bad fuel injectors?
Any idea how to figure out the issue? I really don't want to have to take the truck back to the dealership and rent a car again while they try to find an issue.
Thanks.
Back story - several months ago had to have an exhaust manifold replaced (under warranty) due to cracking. Had to rent a car for 5 days and was told by the dealership that Dodge would reimburse me since this is a warranty issue. Once the service was completed, Dodge said no reimbursement because I don't have a service contract. So I am hesitant to drop my truck off again because I shouldn't have to rent a car for them to run diagnostics.
So I scheduled an appointment with a local mechanic, but day of the appointment the light was off again so they couldn't find a code and had no idea what to check. The light has come back on intermittently for the past several days and now there is an idle surging occasionally, especially when I am in reverse. Truck still idles rough and seems to have an issue. Maybe bad fuel injectors?
Any idea how to figure out the issue? I really don't want to have to take the truck back to the dealership and rent a car again while they try to find an issue.
Thanks.
