Rough Running 84
Thread Starter
5th Gear
Joined: Jul 2015
Posts: 5
Likes: 0
From: Aurora Colorado
Rough Running 84
So I am putting the car up for sale and all of a sudden we have issues. It sat for a couple of weeks then had a hard time starting and staying on. I thought it was actually out of gas and that caused it but added fuel and It's running very rough and seems to not have all it's power. I have had a new ignition module and HEI coil, distributor assembly, ignition pick up, new oxygen sensor and put over 2400 in parts and labor. But it's still running badly. I have a video below if anyone has any ideas. Plus the oil pressure is all over the place but totally full of oil. The oil pressure issue started after the repairs. Any help or ideas would be appreciated. Thanks, I have a video on you tube.
Safety Car
Joined: Nov 2005
Posts: 3,532
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
It sounds like you have a vacuum leak. OR have a look at the IACs and see what they are doing. One may be sticking either open or closed and the other one if fighting to keep the motor idling correctly and can't. Remember, the IAC is a controlled vacuum leak at idle. Check to see if they are both working properly, short pins A&B on ALDL plug and watch that they both cycle in and out when the key in turned to the ON position. You will need two people for this test. Also, it looks like your oil pressure is surging with the motor rpm. Fix the surge and the oil pressure will probably be steady again. Hope this helps you out a bit. GL 
