11 Reasons For Rough Idle and How To Fix It!

In this video, we will look at the most common causes of rough idle in a car engine. We will also give you some information on how to narrow down the troubleshooting to fix the rough idle.
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00:00 Introduction
00:35 1. Throttle Body
01:18 2. Idle Air Control Valve
01:42 3. Fuel Injectors
02:46 4. Spark Plugs
03:42 5. Ignition Coils/Leads
04:15 6. Clogged Air Filter
04:52 7. Intake/Boost Pipe Leaks
05:50 8. Stuck EGR Valve
06:30 9. PCV Valve
07:20 10. Other Engine Sensors
07:57 11. Low Compression
08:35 How To Fix Rough Idle

[@genesisvelasquez904]

After years of watching videos on how to fix vehicles, you are one of the best when it comes to educating and informing on how to fix and troubleshoot problems. Thank you so much.

[@MechanicBase]

💪💪

[@stuartwinstanley4949]

Thanks for this I need to check a few things you forget how long it's been since you've installed things and forgot about it

[@cosmos2382]

What if its only rough on coldstart

[@GrandePunto8V]

12. Worn valves.
13. Bad valve clearance/lash, lifters.
14. Worn camshaft lobes.
15. VVT.
16. Auxiliaries, alternator, A/C...
17.
18.

[@MechanicBase]

Yes, and the list can go on😁