Hi,
The first thing to do is check for diagnostic trouble codes to determine possible issues. If you don't have a scan tool, often a parts store will lend one to you.
Next, when you say it pops, do you mean like a backfire? That could indicate a few different things. First, too much fuel, a timing issue, an ignition control module (mounted under the coils), a crankshaft position sensor, or even the harmonic balancer can cause this.
If you have a live data scan tool, I would suggest watching for an RPM signal when cranking to see if it is present. If it isn't or it's erratic, the sensor itself could be faulty.
One other thought, the digital ignition control module can be checked. I know places like AutoZone can test it for you.
Let us know if you can retrieve the codes.
Take care,
Joe
Jun 15, 2025 at 9:57 PM
