What causes a car to idle rough when hot?
Rough Idle only when engine is warm - Car Talk Community
EGR valve may be clogged up and not allowing it to seal. that forms a leak that buggers up the idle. knfenimore August 26, 2018, ...
What causes a car to idle rough when hot? - Quora
The most common reasons why a car is hard to start when warm are due to a defective crankshaft or camshaft position sensor. It could also be ...
Rough Idle When Warm: Troubleshooting The Engine Problem
There are several possible reasons that can cause the idle rough of the car. The culprit can come from a bad ignition system, malfunctioning ...
rough idle only when warm or restarting?
I believe you are experiencing heat soak. When you having been driving for a while the motor heats up (obviously) and then when you shut the car ...
Rough Idle when warm : r/MechanicAdvice - Reddit
usually a leaking valve or worn cam lobe. A running compression test on a warm engine would be ideal, but since it's a giant PITA to do a ...
Rough idle smoothes out when warmed up - IH8MUD Forum
To much fuel and weak spark will cause rough running because the engine is basically being flooded. Once warm, the fuel mixture leans out and all is well.
Help with Rough Idle when Engine is Hot - FerrariChat
Too rich or too lean can both cause a rough idle. As noted there is an AAV, auxiliary air valve, the opens and closes based on the car ...
rough idle only when engine is hot, can anyone help? - CorvetteForum
It sounds like you have a vacuum leak caused by expansion of the metal since it only happens when hot. You can check this out by spraying some WD 40 around the ...
Rough Idle Causes And How To Fix Them - Auto Select
Many different problems could result in a rough idle for your car or truck, including: dirty fuel injectors, clogged air filters, bad spark plugs, and a ...
Engine Idle Is Rough When It Is Warm Outside - 2CarPros
The engine has to have some sensor that gives it what the ambient or intake temperature is. The reason is, the PCM uses ambient/intake temp, ...
What Does It Mean If My Car Shakes While Idling? | Hollenshade's
Ultimately, everything from the ignition and fuel injection systems, to valves and pistons can cause a rough idle. · What to Look For: A rough, ...
why is my CAR IDLING ROUGH when HEAT is ON? - - JustAnswer
Also, your throttle body may be carboned up and need to be cleaned! This can cause all sorts of idle and hesitation problems. This is caused by ...
Rough idle... only when warm. | For A Bodies Only Mopar Forum
If the engine note changes, it means the pri throttle blades are open too far at idle. This can be caused by a big cam, worn cam, PCV that is ...
11 Common Causes of Rough Idle | How To Fix Car ... - YouTube
What is Rough Idle? Rough idling or rough idle represents the irregular or uneven operation of the engine when your vehicle is in idle mode ...
Rough Idle/Engine Hesitation when engine hot | EricTheCarGuy
Too lean = too hot. That issue gets exacerbated by it being hot outside. Throw in factors like sitting idle with the A/C cranked, waiting to ...
Car Idle Is Running Rough Inspection & Diagnosis - Sprint Motorsports
Below Is A List Of Common Issues That Can Cause A Rough Running Idle: · Bad Motor Mounts or Mechanic Failures: · Vacuum Leak: · Damaged, worn, or incorrectly ...
Stalling and rough Idle after car is warm. - LegacyGT.com
Potential causes include vacuum leak, dirty/bad idle air control valve, dirty throttle body, dirty/bad MAF sensor, dirty/bad fuel injectors, low ...
Rough idle...stall...hot weather - RX8Club.com
BUT this time i did use Sams club gas and that may affect performance but i cant imagine it would cause the car to stall. Jeremeymt's Avatar.
5 Common Causes of Rough Idle - Custom Complete Automotive
1. Clogged Fuel Filter. Over time, your car's fuel filter can become clogged and will need to be changed. · 2. Dirty Fuel Injector · 3. Faulty ...
Why Is My Car Idling Rough? | The Family Handyman
A dirty, damaged or malfunctioning O2 sensor (or sensors) affects the air/fuel mixture, causing the engine to idle rough. Replacing on oxygen ...