Intermittent rough idle no codes

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Joined
Feb 9, 2024
Threads
9
Messages
135
Location
Richmond, TX
Hi friends!

I've read a lot of posts about this issue, but need some advice.

A month or so ago, I started having this idle issue, while idling in drive. It idles ok but there is this rough idle for a few seconds then it goes away. Sometimes it hesitates a bit while pulling away. No other issues after that. I'm confounded that it doesn't throw a CEL or a code (I've checked it with my reader). It starts as it always has.

So far, I've replaced the fuel filter, air filter, and cleaned the MAF twice.

Here are my next steps:
  • Throttle body cleaning
  • PCV valve and grommet (on the way)
  • Spark plugs
  • Coils (If I find any that are cracked, etc.)
  • Fuel Pump?
Am I diving into this in the proper sequence? Are there any other items I'm overlooking, or sensors to be cleaned?
 
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