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How to clean idle air control valve of 1994 volvo 940

Posted by Anonymous on

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  • 2 Answers

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: 1994 volvo 850 - non turbo

Try cleaning the throttle body and air idle control valve (IAC). The computer kicks the idle up when the a/c is on, if your throttle body or AIC valve is full of crud it will idle very low and feel rough.

Posted on Oct 11, 2008

  • 3 Answers

SOURCE: 01 s40 idle air control valve- hard to replace?

your IAC valve, idle air control valve is under the black plastic cover on the front right corner on the engine, remove cover undo valve, renew gasket and re install. ade 13 years volvo tech

Posted on Dec 02, 2008

  • 109 Answers

SOURCE: 1994 Volvo 940 turbo wont start!!!!!! =[

I am a volvo tech and your problem is fuel pressure ralated and i had same problem in 1995 850 turbo and the fuel pump was the problem and a used one is around 35.00

Posted on Apr 11, 2009

  • 218 Answers

SOURCE: 2001 toyota echo engine light is on. Car idle is rough and sometimes stalls. Is there a way to clean the idle air control valve without removing it?


Posted on May 05, 2009

  • 6826 Answers

SOURCE: the idle air control valve

if it is not running,and wont start,pull the idle air control and look at it,,is it stuck all the way out? if so this is ur problem

Posted on Jul 05, 2009

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1 Answer

I have a 1994 940 Volvo 2.3 turbo engine and oil is in my air flow system could it be crossed vacuums or faulty,,< egr valve, exhaust clogged and now i have poor performace

you can use some sea foam to put thru the vac lines to clean them out then see if it continues then find the main oily hose

Jan 02, 2014 | Volvo Cars & Trucks

1 Answer

Engine stumbles on start, requires restart

clean your throttle body with throttle cleaner will be dirty.and clean your idle control valve.that is under the inlet manifold ,in the rubber cage.

Sep 02, 2013 | 1994 Volvo 940

2 Answers

1994 volvo 940 brake lights don't work

check the fuse .and all of the bulbs are working.if ok then change the brake switch.

Feb 01, 2012 | 1994 Volvo 940

1 Answer

All of a sudden my engine is revving when in park (1995 Volvo 940)

How high do the RPMs go up? It could and usually is your idle air control valve(IAC). In the 940, it is not bolted into the intake, rather it bolted elsewhere underneath the intake and two rubber vacuum hoses connect it to the engine intake. If these hoses are ruptured, the your engine will rev up at idle. Also it could just be the IAC itself malfunctioning.

Dec 08, 2010 | 1995 Volvo 940

1 Answer

940 auto.when starting from cold chugs but clears after reving up ????

Could be the idle air control valve fading off or the intake vacuum hoses

Sep 27, 2010 | 1995 Volvo 940

1 Answer

My air bareley blows when i accelerate.i have a 1994 volvo 940 turbo.

i have heard somewhere that this is caused by a faulty vacuum check valve which is black and white plastic and is located near centre above the rear of the engine up against the firewall. vacuum drops when you accelerate so there is not enough vacuum to keep various vacuum operated heating/cooling system valves in their selected position . the check valve keeps sufficient vacuum in a reservoir tank when vacuum at the engine manifold drops.

Jul 03, 2010 | 1994 Volvo 940

2 Answers

92 buick skylark 3.3 erratic idle

vacuum leaks, air filter clogged, idle control system, or leaking egr, leaking head gasket, worn timing chain, camshaft lobes worn, valves burnt or leaking, faulty emissions or engine control system.
Could be any of the above. Check your air filter first, then vacuum leaks, the idle control valve sensor. Work your way through them from the cheapest to the expensive. Good luck!

May 15, 2009 | 1992 Volvo 940

1 Answer

1994 volvo 850 - non turbo

Try cleaning the throttle body and air idle control valve (IAC). The computer kicks the idle up when the a/c is on, if your throttle body or AIC valve is full of crud it will idle very low and feel rough.

Sep 02, 2008 | 1994 Volvo 850

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