Why is my car suddenly running rough?
Causes of a rough idle. 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 variety of exhaust system issues.
What causes rough idle and check engine light?
Spark Plugs A rough idling engine can be caused by spark plugs or spark plug wires. A plug that is damaged or installed incorrectly can result in fuel being burned at an inconsistent rate. If the damage is bad enough, you may also notice your engine running rough while driving.
Can ignition timing cause rough idle?
Many system malfunctions can cause misfires or rough idling. Ignition system components, including spark plugs, plug wires, ignition coils and ignition timing are culprits as are lean air/fuel mixtures and mechanical issues within the engine.
Can distributor cause rough idle?
The distributor cap are tasked with passing voltage from the ignition coils to the engine’s cylinders through the spark plug wires and plugs themselves to ignite the air and fuel mix. A failing distributor cap will result in rough idle because the voltage is not being sent to the plugs at the proper time, or at all.
What should spark advance be at idle?
In addition, the WSM says spark advance should be between 6 to 18 degrees BTDC at idle.
What is the Check Engine light on Acura CL 3.2L?
I’m working with our 2002 Acura CL 3.2L. The engine is running very rough at idle (it sounds like a muscle car). I have two lamps illuminated on the dashboard. The Malfunction Indicator Lamp (MIL) is flashing, and the Traction Control System light is solid. NOTE: Some bulletins refer to the MIL as the Check Engine Light (CEL) as well.
What does the Acura check engine light mean?
Common symptoms that Acura owners notice when CEL comes on are: Check engine light flashing on and off. Check engine light, and TCS come on. Check engine light blinking. What does Acura check engine light mean? Acura check engine light (CEL) turns on to let you that the engine control unit (ECU) has detected a problem.
What to do if your Acura has a misfire?
We replaced that with a bolt and gasket (washer) from Acura (PN 90009-R70-A00 and 94109-14000 if you were curious). After all of this work, the engine is still spitting out the same codes. The engine’s running much more powerfully now, so it’s like an amplified version of the original problem.
Why does my Acura DTC sound like a muscle car?
The rough running of the engine seems restricted to idle. This is when the majority of the extra vibration and “muscle car” sound occurs. When the vehicle is driving at any speed, the rough running doesn’t seem apparent. In fact, it seems to drive like normal.
I’m working with our 2002 Acura CL 3.2L. The engine is running very rough at idle (it sounds like a muscle car). I have two lamps illuminated on the dashboard. The Malfunction Indicator Lamp (MIL) is flashing, and the Traction Control System light is solid. NOTE: Some bulletins refer to the MIL as the Check Engine Light (CEL) as well.
We replaced that with a bolt and gasket (washer) from Acura (PN 90009-R70-A00 and 94109-14000 if you were curious). After all of this work, the engine is still spitting out the same codes. The engine’s running much more powerfully now, so it’s like an amplified version of the original problem.
What causes the EGR on an Acura RL to fail?
The exhaust recirculation valve (EGR) on the 1996-2012 Acura RL may fail, causing: The EGR valve has open and closed positions, and opens or closes on command from the computer. Exhaust gases constantly pass through the valve when it is open, leaving carbon deposits on the valve.
Why is exhaust gas clogging on my Acura?
Purely running off of the feedback of the lamps, I did some online research and found this to be common issue with Exhaust Gas Recirculation (EGR) System Port Clogging. It didn’t take much to pull the intake manifold cover plate off of the engine and have a look.