Re: Coughing After Warming Up

Posted by 53 Cavalier On 2024/6/22 10:04:18

Did this appear rather suddenly, or has it slowly become an issue? If your engine was being starved of fuel I would expect a general loss of power, and maybe even dying, but not necessarily the symptoms you're describing. Here's another potential issue to consider. If you're coil is bad, as it warms up it will can cause all kinds of ignition issues, and because they are random in nature they appear to be fuel issues.

I just went trough this a couple of weeks ago after going for a drive to see some friends. The car was developing a miss which was even notable while driving, something completely new. The car sometimes has a bit of a miss when warming up, but once warm it's pretty smooth............like a Packard should be!

When we got home I popped the hood and started poking around to see what I could find. As I was checking to make sure I didn't have any loose plug wires going into the distributor I noticed that a couple of them were slimy.....what's this??? It's like they had oil on them, which they did! My NAPA coil, which was only a year old, has leaked out it's oil, which it uses for cooling. The coil was overheating and causing the engine to misfire, stumble and just run terrible. Replaced the coil with a Flame Thrower and my car has never started and run so well!

There are a few videos on YouTube showing how to test your coil.