answersLogoWhite

0


Best Answer

Vacuum leak, is primary suspect. Bad/dirty Idle Air Control Valve. Do you get a check engine light? Get some starter fluid or Carb cleaner spray and spray the Lower/Upper Intake Gasket, if you notice a change in idle, the gasket needs to be replaced. This is especially most likely if it only idles high when the engine is cold. Check for other vacuum leaks, such as the brake booster hose. Mine mysteriously popped off one day. Carb cleaner spray is useful in finding these such leaks. There is a way to clean an Idle Air Control Valve(IAC) with carb cleaner which can cure bad Idle. If you get a check engine light, get the code, there is a method to do so if you don't have a code reader, it's called the paperclip method, look it up. Get the code, ask me or look it up.

User Avatar

Wiki User

βˆ™ 16y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why is your Chevy lumina z34 3.4 idling fast at start up?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

1995 Chevy lumina sedan is idling really fast after starting and stays that way what would cause it?

could be a bad TPS throttle position sensor OR a bad IAT idle air control temp sensor.


How fast does a 1995 Chevy lumina sedan go?

it goes 120


Why would a 1986 Chevy 305 idle fast and diesel when you shut it off?

one of the main reasons an engine runs on or diesels can be related to the fact that it is idling too fast. Set the idling down and see if this imporoves


The right front blinker on a 99 Chevy lumina is flashing fast it has been replaced but still flashing fast help?

get new head lamps for the car


Why is your suburan idling to fast?

the clutch


What part can you buy to stop fast idling and pulsation idling?

change the mass air flow senser


How much horse power does a 1984 350 Chevy v8 engine block cast number 14010209 have?

Timing to high / advanced to far. Idling to fast. This can cause that problem.


Does your car use more gas idling or driving down the street?

It depends on how long you are idling, or how fast you are going. If you know you are going to be idling for a long time, it's best just to put your car in park.


How much power horse does a lumina ss produce?

as fast as mommy will go


Why does your 1988 Chevy 350 tb truck not slow down when you take your foot off of the gas pedal?

Idling too fast. Set the idle to factory specs. Should be around 750 RPMs in neutral with A/C off.


How do a just idling on 1992 1500 truck?

You can adjust the idle air control valve on a 1992 1500 truck while it is just idling. This is done if the truck is idling too fast or too slow. It will help the truck run better.


Which car is faster between BMW m3ford focus st and Chevy ss lumina?

In a real head to head test the BMW will win. The Ford is still an economy car with nice handling Their has never ever been a truly fast Lumina ever. That leaves the BMW M3 A factory built hot car in the best tradition.