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How do you fix an intake plenum switchover valve circuit for a 2003 chev impala

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: what is a intake plenum switchover valve and where

never hear of such a thing. it does not exist on that engine period

Posted on Aug 27, 2009

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tripletauto
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SOURCE: I have oil around the top of the antifreeze

most likely the resevoir was not cleaned good and some residue in radiator made its way into the resevoir. i would recommend removing resevoir cleaning out good and reinstalling. also check youur oil for any signs of coolant getting in there.

Posted on Feb 10, 2010

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SOURCE: Where to find a 2003 chevy impala intake and

If you are trying to put the rods back in and got them messed up, then , Standing on the passenger side of the car, the left side of the engine is long,short, long,short, short, long front to back. the right side is long , short, short, long ,short, long Front to back. Hope this helps.

Posted on Oct 02, 2011

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Cadillac diagnostic codes


P1112: intake plenum switchover valve control.
P1740:Torque management request circuit.
P0115:ECT sensor circuit.
P50501: NO informations, mabe

Jul 25, 2014 | 1998 Cadillac Catera

1 Answer

Where Is the Camshaft Position Sensor on 2005 4.3 chev Impala


The cam sensor for the 3.4 engine should be on top of the block near the front under the intake plenum.

Apr 03, 2013 | Cars & Trucks

1 Answer

How do you fix a intake plenum switchover valve circuit


Intake plenum swithover valve, that is your whole intake manifold need replaced and all new gaskets on top of motor .

Mar 11, 2012 | 2004 Chevrolet Impala

1 Answer

I went to Advance and had my 2001 olds alero put on computer and these are the codes that came up I already replaced the plugs and boots, it is still misfiring, here are the codes what do they all...


p1227 Oldsmobile Injector 2 Control Circuit Shorted
p1245 Oldsmobile Intake Plenum Switchover Valve
p1275 Oldsmobile Accelerator Pedal Positioning (APP) Sensor 1 Circuit p0300 Oldsmobile Multiple Engine Misfire Detected p0172 Oldsmobile Fuel Trim System Rich (Bank 1)
sounds like bad injectors for one and computer needs relearned or replaced unfortuantly u gotta goto to the dealer have diagnostics ran

Sep 10, 2011 | 2001 Oldsmobile Alero

1 Answer

Need to replace turn signal switch,2003 chev impala


You only need to disconnect negative battery cable to make it safe to work on.

Mar 16, 2010 | 2003 Chevrolet Impala

1 Answer

I have oil around the top of the antifreeze reservoir.2003 chev impala.Had the intake gasket replace at 70,000 k there is 128,000 k on car now.


most likely the resevoir was not cleaned good and some residue in radiator made its way into the resevoir. i would recommend removing resevoir cleaning out good and reinstalling. also check youur oil for any signs of coolant getting in there.

Feb 10, 2010 | 2003 Chevrolet Impala

1 Answer

Does anyone have engine schematics for a 2003 pontiac 3.1 V6? Or know of a site where I can find engine schematics? I have to replace an EGR Valve but don't know where it is located.


If you don't know where the EGR Valve is located, it is safe to assume that you did not properly diagnose your EGR system...how do you know the valve needs replacing?

If you are trying to fix a trouble code P0401 " Exhaust Gas Recirculation (EGR) Insufficient Flow" (This is a very common code with 3.1L GM Engines)
An EGR Valve replacement will most likely make you about $125 poorer than you were before and will not fix the problem.

Your EGR port into the intake manifold is most likely clogged up and needs to be cleaned out.

You will need a Throttle Body Gasket, an EGR Gasket, a can of ThrottleBody and Intake Cleaner, and a little antifreeze. (You will lose just a little when you remove the throttle body.)

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Remove the EGR Valve and the Throttle Body. Use a screw driver or pick to chip out the carbon buildup in the EGR port going into the intake manifold. You will probably have to work it from the intake side as well as the EGR side to get as much of the black carbon out as possible. Be careful not to let this stuff go down into the intake plenum - you will burn some valves if it gets in there. Then use the Throttle Body and Intake cleaner to finish the cleanup. (It helps to take a rag and stuff it into the intake manifold just past the EGR port to catch the gunk so it doesn't go down into the plenum...just don't forget to remove the rag before putting the Throttle Body back on)

Put everything back together and top-off your antifreeze and clear your computer codes. That should fix it.

Oct 27, 2009 | 2003 Pontiac Grand Prix

1 Answer

What is a intake plenum switchover valve and where is it located in a 96 chevy tahoe


never hear of such a thing. it does not exist on that engine period

Aug 27, 2009 | 1996 Chevrolet Tahoe

1 Answer

2003 Chevy Impala LS idles high (2000+ rpm's) in P and N only


CHECK IT FOR VACUUM LEAKS. INCLUDE THE EGR VALVE, VACUUM BOOSTER, INTAKE GASKETS, ETC. ALSO CHECK THE THROTTLE BODY IT MAY BE HELD OPEN BY THE THROTTLE CABLE.

May 16, 2009 | 2003 Chevrolet Impala

1 Answer

Totally rebuilt top end wont start


Dheck all your ground straps. Also, check your fuel pressure regulator with a pressure gauge. But if you have one ground off it can cause the car to overfuel. Hope this helps. Phil

Jan 18, 2009 | 2003 Chevrolet Impala

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