Question about 2001 Chevrolet Impala

2 Answers

Does a 2001 chevy impala have a throttle screw and how to change the idle

I was wondering if my 2001 impala has a throttle screw and how i can turn my throttle up cause my car idles to low

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 39 Answers

Nope.
The idle is taken care of by the engine management computer using what is called the Idle Air Solenoid (IAS). The throttle plate on a fuel injected engine closes completely. There is an internally cast port in the throttle body allowing bypass air to flow around the throttle and into the intake manifold. The amount of air that flows through this passage is controlled by the IAS. The IAS has a servo-motor controlled pintle or valve that opens or restricts the airflow to maintain the correct idle RPM. This can be seen or felt when the engine is idling with the A/C running. When the compressor kicks on, the IAS opens up a bit to allow more air flow and compensate for the load of the compressor. What happens over time is the internal port gets clogged with deposits reducing the airflow and causing the engine to idle slower. Many times the deposits clog the end of the IAS pintle and causes what you're experiencing. If you've never cleaned the throttle body, now would be the time to get that done. It may turn out that the IAS itself has gone bad and needs to be replaced. This isn't a complicated job and will probably run about $150 or so to have done ...figure about $200 for a new IAS and a throttle body cleaning.

Posted on Apr 13, 2014

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Chevrolet Master
  • 5,280 Answers

No, the engine computer controls idle speed through the idle control valve on the throttle body assembly. Take it off and clean it and check operation with the electrical connector attached. When the key is turned to on, the pintle on the valve should have a noticeable movement, not a lot, but it should move a little.
Often the passages where the idle control valve mounts gets full of gunk (coking deposits) that inhibit good air flow through it. Clean it out and clean up the control valve if it is dirty.

Posted on Apr 13, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 150 Answers

SOURCE: idle at 1500 to 2000 rpm

Most likely the throttle body gasket (between the throttle body and the intake manifold) is leaking.

Posted on Feb 12, 2009

  • 1 Answer

SOURCE: 2001 Chevy Impala won't start

If the battery has gone dead, it could cause the security system to go into full lock-up mode. If it has locked up the accessories will work after the battery is charged back up , but the power to the starter will be cut off and it wont turn over. You need to do the 30 minute learn procedure. A GM dealer will print it out for you and you can do it yourself. It's very simple if you follow the procedure exact. hope this helps and good luck.

Posted on Mar 25, 2009

  • 202 Answers

SOURCE: Reset my engine oil low in 2007 chevy impala

it will say in your owners manual but i believe you turn your ignition key to the run position not the start. and pump the gas pedal 3 times with in 5 seconds

Posted on Apr 14, 2009

emissionwiz
  • 75822 Answers

SOURCE: IDLE PROBLEM

Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Apr 14, 2009

  • 1 Answer

SOURCE: Need to find Low Pressure A?C Port 2001 Impala 3.8

The low pressure port is against the fire wall, look straight back and you will see it.
Greg

Posted on Aug 02, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Location of idle control air valve on 2001 chevy impala


The only thing close to what you are asking would be the adjustment to the main throttle blade before the intake manifold. However with today's cars that is not the only way to fix the idle.....best to have a mechanic do it.

Jan 12, 2017 | 2001 Chevrolet Impala

2 Answers

IDLING PROBLEMS ON A 2006 CHEVY IMPALA


I had a similar problem and it was a dirty egr exhaust gas recirculation valve. Could also be a idle control valve that is weak and not setting a code.

Jul 16, 2016 | Cars & Trucks

1 Answer

I have a 2003 impala that has a very a very high idle already changed air mass sensor all sensors around throttle body HELP can't find the problel


Did you check for a vac leak ?
There is extra air entering the throttle body or intake bypassing the throttle plate. Is the throttle plate completely closed ?

Aug 30, 2013 | 2001 Chevrolet Impala

1 Answer

How do i adjust the idle on my chevy impala just replaced throttle positioning sensor


did you disconnect the negative battery terminal before changing the sensor?

Sep 04, 2012 | Chevrolet Impala Cars & Trucks

2 Answers

Have a 2001 chevy impala runs great on acceleration but rough on idle engine light is on gas milage is down replaced plugs and wires wondering if i have an issue with the oxygen sensor


your check engine light will give you information that will help solve the problem-get the computer scanned, go to a retail auto parts store, they all do it for nothing. Write down the actual codes, and come back here with the codes, you will get the help you need.

Mar 09, 2011 | 2001 Chevrolet Impala

1 Answer

Son cleaned throttle body on my 2001 chevy impala and changed the air filter, now it won't start.....what can be wrong?


Did he clean the throttle body while it was on the vehicle? It is probably flooded out now, Turn the key on like you are going to start it then hold the gas pedal to the floor. This process is the clear flood mode and disables the injectors from spraying any additional fuel.Give this a try and see if it will start for you. If not may need to remove the sparkplugs to dry them off.

Nov 15, 2010 | 2001 Chevrolet Impala

1 Answer

Idle issues with 96 Chevy cavalier 2.2L OHV. everytime i try to adjust RPM's i get idle too high code. after doing research found that stop screw on throttle is factory set and should not be messed with,...


WHEN YOU MOVE SCREW YOU CHANGE TPS VOLTAGE READINGS YOU WILL NEED TO MONITOR TPS VOLTAGE AND ADJUST BACK TO SPECS DONT KNOW EXACT BUT SHOULD BE AROUND .50 AT IDLE

Mar 17, 2010 | 1996 Chevrolet Cavalier

2 Answers

I got code p2176 I changed out the tps still got same problem did not have this problem with other engine just changed engine out now cant seem to get this code off causing the car to rough idle and low...


P2176=Throttle Actuator Control System - Idle Position Not Learned
Did you use all you old sensors,or is some of them from the new engine,I would swap out the IAC sensor or check for wires not hooked up.
If it can't relearn to idle the Idle air control might be different then your old one,but its not registering with the computer

Dec 17, 2009 | 2006 Chevrolet Impala

3 Answers

Code P0507


P0507-- idle speed high

Jun 02, 2008 | 2001 Chevrolet Impala

Not finding what you are looking for?
2001 Chevrolet Impala Logo

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8202 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...