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There can be many causes of a rough idle. But if the engine runs good under acceleration and then idles rough, there are 2 things I would look at. First look to see if you have a vacuum hose disconnected, broken, or cracked. Secondly depending on the make and model, check the EGR valve. This is just the main 2 causes as there are more.
-also rotor and distributor cap arcing - use only original dealer parts
-O2 sensor slow - if it is old replace
-ignition wires old or incorrectly routed
-if gas smell do a fuel pressure leak-down test - should hold 50psi for 10 mins or more. May be pressure regulator or line leaking or bad fuel pump
What else can I help you with?
What would cause a 2002 Focus Se to be idling rough and have power lost through all 5 gears?
I had a similar problem and it was my coil pack
93 Lexus ES 300 idles rough when idling or stopped at light?
I own a 98 Lexus ES 300. I struggled with the same issue. The problem was the EGR Valve. It is an emission part. The total part and installation was around $300.00. It was a little expensive, but it cured the problem and have not had any problems since then. Hope this helps. Mark
What is the name of the dubstep song that says you like it rough?
Touch Me I Like It Rough (Dubstep)
What are the release dates for Rough Music - 2013?
Rough Music - 2013 was released on: USA: 2013
When idling there is a loud hum until you engage throttle is it a fuel injector?
It could be the fuel pump, if its when you first start the car up
Car is idling rough and then dies?
A car that is idling rough and then dies could have several potential issues. Common causes include a dirty or failing idle air control valve, a clogged fuel filter, or problems with the ignition system, such as worn spark plugs or faulty coils. Additionally, vacuum leaks or issues with the fuel injectors can also lead to rough idling. It's advisable to have the vehicle diagnosed by a mechanic to pinpoint the exact problem.
What is rough idling?
Rough idling is whenever the vehicle's motor "misses" or does not fire causing an imbalance and a loss of rotation reducing the motor's power and causing excessive shaking.
What causes a rough vibration from engine when just starting to drive from idling and when slowing to a stop?
because of ignition coil faulty.due to mountings,abnormal fuel pressure.
What causes rough idling in 1996 Geo Trackers?
Rough idling in a 1996 Geo Tracker can be caused by several factors, including a dirty or faulty idle air control valve, vacuum leaks in the intake system, or issues with the fuel delivery system such as a clogged fuel filter or failing fuel pump. Additionally, worn spark plugs or ignition components can lead to misfires, contributing to rough idling. Regular maintenance and thorough inspection can help identify and resolve these issues.
What would cause your 1990 300zx idle rough?
my 1990 300zx is idling rough what could cause this?
Does bad spark plugs give you a rough idle?
Yes. Bad spark plugs, bad spark plug wires and a bad distributor cap are the common causes of rough idling. If it has been a while since you changed these components, do so.
Why Steering wheel vibrates when car stopped?
Motor is idling rough.
What would cause rough idling flooding and white smoke coming out the tail pipe of a 95 ford ranger?
Rough idling, flooding, and white smoke from the tailpipe of a 1995 Ford Ranger could indicate several issues. Common causes include a faulty head gasket, which allows coolant to enter the combustion chamber, leading to white smoke and rough running. Additionally, a malfunctioning fuel injector or a dirty air filter could contribute to flooding and poor idling. It's important to diagnose these issues promptly to prevent further engine damage.
What causes a sulfur smell when a engine is idling rough?
too much fuel (unburned) getting into the exhaust. could be your oxygen sensor or catalyst converter. less likely, a leaking fuel injector
Why would 1999 Chevrolet Cavalier 2.2l run rough when idling?
timing off
Your 1986 Honda Accord is idling rough and dies when you turn a corner or stop What could be causing this?
My 1986 Honda Accord Dx just started idling rough and dieing at turns and stops it is a carburated 2.0 witha maunal transmission
What causes idling?
Taking your foot off the accelerator.
