Question about 1995 Chevrolet Camaro

2 Answers

High idle i just put new gaskets in,cleaned the iac valve,cleaned the throttle body,and checked the accelerator cable,any suggestions would be welcome.

Posted by on

  • tomffee03 Aug 22, 2008

    you guys rule.not only did you help me fix the problem you did it fast.keep up the good work.i will be telling all my chevy friends about your site.

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 397 Answers

That sounds like an air leak. With the engine running listen for a high pitched whistle around the induction area, if you think you have found one spray a little WD40 in the area, if the WD40 gets sucked into the air leak your engine will run rough for a couple of seconds while it burns off the WD40 and that will confirm an air leak in the area you sprayed the WD40.

Posted on Aug 21, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hi,

Could be a lot of things, including the ones that you recently just worked on.

Initially, pls try:

  • check for intake manifold (gasket) leak. spray starting fluid/ether on the junction manifold and head, if RPM should go up, leak confirmed;
  • might as well check for tear, misaligned air filter/cleaner;
  • check how the filter housing seats and if it is clamped air tight to the where it is supposed to go to;
  • check all other vacuum hoses, plugs, ports;
  • check the brake, specifically is it stiff or hard to press (hydrovac assist).
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 21, 2008

  • Louie  Role
    Louie Role Aug 22, 2008

    Glad to be of assistance and appreciate the rating.



×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

02 ford escape very high idle


Try taking pff your throttle body and cleaning it and also check and see if your throttle cable is tight or try loosening it and see if the throttle drops. Could also be a bad o2 sensor staying in open circut

Apr 27, 2016 | Ford Cars & Trucks

1 Answer

How to fix high idle have already Cleaned idle air control valve also Throttle body replaced all vacuum Lines and throttle body gasket.


Intake gaskets? IAC valve bad? MAR set too high? Computer failure? Wiring to IAC bad connections? TPS not set to spec?

Mar 05, 2016 | Cars & Trucks

1 Answer

Can the idle air control be tested


Idle Air Control Valve

Print


OPERATION

The Idle Air Control (IAC) valve adjusts the engine idle speed. The valve is located on the side of the throttle body. The valve is controlled by a duty cycle signal from the PCM and allows air to bypass the throttle plate in order to maintain the proper idle speed.
Do not attempt to clean the IAC valve. Carburetor tune-up cleaners or any type of solvent cleaners will damage the internal components of the valve.


TESTING

See Figure 1

0900c152801e4967.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: The IAC can be monitored with an appropriate and Data-stream capable scan tool

  1. Turn the ignition switch to the OFF position.
  2. Disconnect the wiring harness from the IAC valve.
  3. Measure the resistance between the terminals of the valve.

Due to the diode in the solenoid, place the ohmmeter positive lead on the VPWR terminal and the negative lead on the ISC terminal.
  1. Resistance should be 6-13 ohms.
  2. If resistance is not within specification, the valve may be faulty.


REMOVAL & INSTALLATION

  1. Disconnect the negative battery cable.
  2. Detach the IAC solenoid connector.
  3. Remove the 2 retaining bolts and remove the IAC solenoid and gasket from the throttle body.
  4. Installation is the reverse of the removal procedure. Use a new gasket and tighten the retaining bolts to 71-97 inch lbs. (8-11 Nm).

If scraping is necessary to remove old gasket material, be careful not to damage the IAC solenoid or the throttle body gasket surfaces or drop material into the throttle body.
See Figure 2

0900c152801e4968.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: IAC solenoid location-4.6L engine

Jul 12, 2012 | 1992 Mercury Grand Marquis

1 Answer

High idle problem


HIGH IDLE COULD BE ACCELERATOR CABLE BINDING PULLING THE ACCELERATOR PEDAL OR YOU HAVE VACUUM LEAK AT THROTTLE BODY GASKET.WHERE GASKET COULD CRACK SPLIT APART THROTTLE MOUNTING BOLTS LOOSE OR YOU COULD HAVE FAULTY IDLE AIR CONTROL VALVE.IN WHICH IT WILL CAUSE CHECK ENGINE LIGHT TO FLASH.

Mar 02, 2011 | 1997 Isuzu Rodeo

1 Answer

Have a 1996 Mitsubishi Galant and need intstuctions on how to replace the Idle Air Control Valve


You'll have to remove the throttle body to replace the idle air control (IAC) valve. First, disconnect the negative ground cable from the battery. Then remove the vacuum line and air duct intake. Then disconnect the IAC and throttle position sensor (TPS) electrical connections. Remove the coolant hoses that are connected to the IAC. Disconnect the throttle cable from the throttle body. Now, remove the 4 bolts that hold the throttle body to the manifold and remove. Be careful with the gasket located between the throttle body and manifold and replace it in the same position. On your clean work surface, turn the throttle body over and remove the 4 phillips head screws holding the IAC to the throttle body. Clean the parts with a dry cloth but do not use solvents on the IAC or TPS. That's it!

Dec 16, 2010 | 1998 Mitsubishi Galant

1 Answer

I have a mitsubishi galant 1998 model.the problem is the rpm is to high even in the neutral the rpm goes up to 2000 rpm.


Do you have a "Check Engine" light? If not, check that the accelerator cable is functioning properly. When the accelerator is in the normal position the throttle plate should be completely closed. If necessary you should remove the air duct to inspect the interior of the throttle body. The cable should be have no slack but should allow the throttle plate to close all the way.

If the throttle is working properly then I would suggest looking at the idle air control (IAC) valve which controls the idle speed when the car is in park, in neutral or in gear and the accelerator is not depressed. Try disconnecting the IAC and note how the idle is affected. This will cause a Check Engine light to turn on. To clear it, disconnect the negative battery cable for 5 minutes then start the car. Let me know what you find out.

Dec 02, 2010 | 1998 Mitsubishi Galant

1 Answer

Diagnostics test says idle air control underspeed error? how do i fix 1999 ford explorer


change the idle air control valve.

Idle Air Control (IAC) Valve OPERATION The Idle Air Control (IAC) valve controls the engine idle speed and dashpot functions. The valve is located on the side of the throttle body. This valve allows air, determined by the Powertrain Control Module (PCM) and controlled by a duty cycle signal, to bypass the throttle plate in order to maintain the proper idle speed. Fig. 1: Typical Idle Air Control (IAC) valve which is mounted to the throttle body - cutaway view shows air bypass direction 89684g16.gif
--- REMOVAL & INSTALLATION
  1. Disconnect the negative battery cable. To remove the IAC valve, first disconnect the negative battery cable, then the IAC wire harness plug 89684p03.jpg
    Next, remove the two IAC valve attaching bolts . . . 89684p04.jpg
    . . . and pull the valve from the intake manifold 89684p05.jpg

  2. Disengage the wiring harness connector from the IAC valve.
  3. Remove the two retaining screws, then remove the IAC valve and discard the old gasket. To install: When installing the valve, always discard the old gasket and install it using a new one 89684p06.jpg

  4. Clean the IAC valve mounting surface on the throttle body of old gasket material.
  5. Using a new gasket, position the IAC valve on the throttle body. Install and tighten the retaining screws to 71-106 inch lbs. (8-12 Nm).
  6. Attach the wiring harness connector to the IAC valve.
  7. Connect the negative battery cable.
prev.gif next.gif

Oct 15, 2010 | 1999 Ford Explorer

1 Answer

I HAVE A 1999 ESCORT SE 2.0 L 4 CYLINDER AND MY IAC MOTOR IDLES WELL AT HIGH SPEEDS BASED ON AIR FLOW BUT WHEN I'M DRIVING UNDER FIFTY IT'LL SHUT OFF IF I DON'T KEEP THE CAR IN NEUTRAL AND PUSH ON THE...


THe IAC is there only to allow a measured volume of air passed the throttle plate when the throttle is at or near idle; such as when taking your foot off the accelerator to change gear etc. Just in front of the throttle plate, in the throttle side wall, there is an exit channel that leads to the IAC on the outside of the throttle body. Within the IAC is a solenoid or motor driven valve that opens a cone shaped valve to allow air from the inlet channel to pass to the outlet channel that is located behind the throttle flap. To remedy an IAC is usually very easy. Remove the air duct assembly from the air filter to the throttle body to give yourself some elbow room. Disconnect the electrical cable to the IAC and unbolt the IAC from the throttle body. Using plenty of carburettor cleaning spray dowse the inlet and outlet ports and the valve assembly itself. Wipe away the dissolved dirt with a cloth. Repeat this process until everything is absolutely pristine. Reassemble the IAC, reconnect the electrical cable and put the air ducting back in place. Job done

May 18, 2010 | Cars & Trucks

1 Answer

Where is idile valve air control sensor located on the 1998 beetle


Hi there,

Well please follow the below link to check out the position of idle valve -

http://www.freeengineinfo.com/idle-air-control-valve-replacement.htm

The Idle Air Control (IAC) valve controls the engine idle speed and dashpot functions. The valve is located on the side of the throttle body. This valve allows the necessary amount of air, as determined by the Powertrain Control Module (PCM) and controlled by a duty cycle signal, to bypass the throttle plate in order to maintain the proper idle speed.

TESTING
Turn the ignition switch to the OFF position.
Disengage the wiring harness connector from the IAC valve .
Using an ohmmeter, measure the resistance between the terminals of the valve.

NOTE: Due to the diode in the solenoid, place the ohmmeter positive lead on the VPWR terminal and the negative lead on the ISC terminal.
If the resistance is not 7–13 ohms, replace the IAC valve.

The following symptoms can be caused by a faulty IAC due to loose connections, bad grounds, high resistance in the circuit, or opens in the circuit.
 
REMOVAL & INSTALLATION
Disconnect the negative battery cable.
Disengage the wiring harness connector from the IAC valve.
Remove the two retaining screws, then remove the IAC valve and discard the old gasket.

To install:
Clean the IAC valve mounting surface on the throttle body of old gasket material.
Using a new gasket, position the IAC valve on the throttle body. Install and tighten the retaining screws to 71–106 inch lbs. (8–12 Nm).
Attach the wiring harness connector to the IAC valve.
Connect the negative battery cable.


Good Luck!!

Thanks

Jan 01, 2010 | 1998 Volkswagen Beetle

1 Answer

How do i remove and clean the IAC


Operation

The Idle Air Control (IAC) valve adjusts the engine idle speed. The valve is located on the side of the throttle body. The valve is controlled by a duty cycle signal from the PCM and allows air to bypass the throttle plate in order to maintain the proper idle speed. Do NOT attempt to clean the IAC valve. Carburetor tune-up cleaners or any type of solvent cleaners will damage the internal components of the valve.
The Idle Air Control (IAC) valve adjusts the engine idle speed. The valve is located on the throttle body. The valve is controlled by a duty cycle signal from the PCM and allows air to bypass the throttle plate in order to maintain the proper idle speed.
Removal & Installation

  1. Disconnect the negative battery cable.
  2. Detach the IAC solenoid connector.
  3. Remove the two retaining bolts and remove the IAC solenoid and gasket from the throttle body.
  4. Installation is the reverse of the removal procedure. Use a new gasket and tighten the retaining bolts to 71-97 inch lbs. (8-11 Nm).

Nov 28, 2009 | 1999 Mercury Grand Marquis

Not finding what you are looking for?
1995 Chevrolet Camaro Logo

144 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...