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What causes a Dakota pickup to idle up and down after it warms up and use a lot of gas.?
Hello, Usually The throttle position sensor controls that. When they go bad, your idle will go up and down like that. I hope this is helpful.
What is causing the high idle sound when you start your car?
Cars often idle fast when you start them up. The automatic choke will make the car idles fast for a while then the idle speed will slow down, once the engine warms up.
What are the signs that the fuel pump is going bad in a 1991 Grand Prix 3.1?
When you stop or idle after the car warms up the engine will idle sparatically up and down. Then one day the car will crank but not turn over.
Subaru 2.2 will not idle smooth when cold. the idle will jump up and down from 400 to 3000 rpm when cold. once it warms up the idle will stay around 400rpm. what would cause this?
The Subaru engine could have a vacuum leak, bad head gasket, stuck choke, or several other things causing the problem. Any of these could give problems then ease up as the engine warms up.
What causes a Briggs and stratton engine idle speed go up and down?
The most common cause of engine surging (rev up and down) is a dirty air filter.
What causes a 85 caddy throttle to increase engine speed up and down at idle?
A broken or maladjusted IAC valve.
What are the results of a bad idle air control valve?
Everything I have read says that the vehicle will start and then die. Holding the accelerator down a tiny bit will keep it running. After the engine warms a bit, it will go back to normal idle. Needs cleaning or changing.
Why does my 1991 Subaru Legacy's RPMs surge from 500-1500 when it started today?
Mine was doing that for a while. I took the Idle Air Control valve apart and cleaned it. Problem solved. Its normal for the engine to idle higher when its cold though. Once it warms up a bit the idle should settle down.
Why does your gmc sierra idle 1500 rpm yet when you shut it off and restart it will go to normal rpm?
It is normal for a GMC Sierra to idle fast when it is first started. It will idle at around 1500 rpm until the engine warms up. To get it to slow the rpm's sooner, a person can tap the throttle once and it should slow down.
What does a Idle speed control solenoid do?
The idle speed control solenoid controls the idle of the engine when the air conditioning is engaged. Since the ac pump draws down the engine idle the solenoid increase the idle when the ac is on.
Why does your car idle up and down when started but then it warms up and idle evenly1994 Honda civic ex?
My mechanic (who I trust) replaced my O2 sensor and exhaust manifold and the problem went away.
Why would your car idle high when cranking?
if the engine is cold the computer says I'm cold so rich up the mixture and speed up the engine via TPS. then once the engine warms up another sensor tells the computer it has warmed up and decrease the TPS signal slowing the RPM down.
