megaforcer
LVC Member
Hi all,
I have recently acquired a 97 Mark VIII. The car was idling rough so I performed the following trying to eliminate the issue:
1. Replaced the air filter with K&N, the old filer was so dirty that it was black in color.
2. Cleared the MAF
3. Cleaned IAC
4. Replaced the plugs.
Here is what I did not do yet:
1. Did not clean the EVR
2. Did not replace the fuel filter.
I have replaced the air filter yesterday and drove the car for about 30 mile and it drove fine but the rough idle was still there. Today in the morning I started the car and it was running much, much, much worse. The engine was revving up and down by itself and the whole car was shaking pretty bad. I though that the oil fumes in the K&N have messed with the MAF so I removed the filter and replaced it with an OEM one and cleaned the MAF again but the problem is still there. When I replaced the plugs today, 2 of them were covered in black oil, just the thread. See the pics. Help me out guys, what could be the cause of this bad idle. Thanks in advance.
I have recently acquired a 97 Mark VIII. The car was idling rough so I performed the following trying to eliminate the issue:
1. Replaced the air filter with K&N, the old filer was so dirty that it was black in color.
2. Cleared the MAF
3. Cleaned IAC
4. Replaced the plugs.
Here is what I did not do yet:
1. Did not clean the EVR
2. Did not replace the fuel filter.
I have replaced the air filter yesterday and drove the car for about 30 mile and it drove fine but the rough idle was still there. Today in the morning I started the car and it was running much, much, much worse. The engine was revving up and down by itself and the whole car was shaking pretty bad. I though that the oil fumes in the K&N have messed with the MAF so I removed the filter and replaced it with an OEM one and cleaned the MAF again but the problem is still there. When I replaced the plugs today, 2 of them were covered in black oil, just the thread. See the pics. Help me out guys, what could be the cause of this bad idle. Thanks in advance.
