Question about 2003 Chevrolet Malibu

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Moister building up in throttle body, fresh air housing where engine blows air threw from valve cover

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Those had a problem with coolant getting sucked in due to a bad design . Gm is aware of the problem. You might check with dealer on alternate throttle body.

Posted on Jan 28, 2016

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SOURCE: why am I getting moister building up in PVC housing and rubber hose from fresh air filter to throttle body intake and hot air blown in from oil value cover?

Your intake gasket or head gasket is blown,, and will need replaced,,, when anti freeze is present in oil it will turn the oil a light milky brown and clot up,,,anti freeze will also crystalize the bearings in an engine if it is not fix asap,,,do run the engine til its fixed or you might have to replace to whole engine, or have a complete rebuild,,,, i would try to find a used engine and replace,, its alot cheaper,,, or if your looking for a quick short term fix you can try some radiator / block sealent and pour in you radiator,,, FOLLOW THE DIRECTIONS ON THE BOTTLE OR CAN,,,may or may not work,,,,

Posted on Apr 27, 2015

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Locate pcv valve.pulled throtle body nothing or valve covers


Crankcase ventilation system is used to consume crankcase vapors created during the combustion process instead of venting them to the atmosphere.
Fresh air is supplied through a filter to the crankcase, the crankcase mixes the fresh air with the blow-by gases and then passed through a positive crankcase ventilation (PCV) orificed tube into the intake manifold.
The PCV orificed tube restricts the flow rate of the blow-by gases using a 3 mm (0.118 in) (a) orifice located at the end of the tube. If abnormal operating conditions arise, the system is designed to allow excessive amounts of blow-by gases to back flow through the crankcase vent tube into the throttle body in order to be consumed by normal combustion. Positive Crankcase Ventilation Hose/Pipe/Tube Replacement
Remove the two nuts (2) from the fuel injector sight shield (1).
Lift the sight shield (1) from the front and pull forward to disengage the rear tab from the bracket.
Disconnect the PCV fresh air tube from the left camshaft cover.
Remove the PCV fresh air tube from the throttle body.
Remove the drive belt. Refer to Drive Belt Replacement .
Remove the power steering pump retaining bolt.
With the hoses still attached, Carefully position aside the power steering pump.
Remove the retaining clip securing the PCV dirty air tube.
Disconnect the PCV dirty air tube from the PCV orificed tube.
Remove the PCV dirty air tube from the intake manifold.

Feb 25, 2016 | 2004 Cadillac Seville

2 Answers

Why am I getting moister building up in PVC housing and rubber hose from fresh air filter to throttle body intake and hot air blown in from oil value cover?


First I must ask if you have checked you oil level to make sure you don't have a leak putting antifreeze in your crankcase. And a severely overfull crankcase will cause a turbulence that that can displace the liquid. Also make sure your PCV valve is working. It also sounds like you may have a 'blow by' issue.

Apr 25, 2015 | 2003 Chevrolet Cavalier

2 Answers

Where is the throttle position sensor located


Look for big black tub goes to intake should be onside,near RPM cable.

Dec 19, 2014 | 2007 Suzuki XL-7

1 Answer

Where does the fresh air snorkel connect to the valve cover on a 2006 Pontiac torrent? Check engine light is on (P0171 code)?


I believe the one your describing goes from the air inlet tube assy. , up and over the throttle body and goes to the top of the valve cover, under the ignition module (firewall side). If you already paid the dealer to fix this, take it back under warranty,

May 13, 2014 | 2006 Pontiac Torrent

2 Answers

Why is oil blowing from dipstick of a 1994 ford excort


Here's a link to the pcv valve,could be glogged up causing pressure to back up,Here's the pcv valve.

Dec 04, 2012 | Cars & Trucks

1 Answer

When i turn on heater or fan engine revs over 3000 rpm


Idle Air Control Valve Pintle may be bad If you disconnect the IAC and the problem ceases it can point to this being the problem.: Removal & Installation 3.5L Engine To Remove:
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Remove the fuel injector sight shield.
  3. Drain the cooling system.
  4. Remove or disconnect the following:
    • The air cleaner intake duct. Figure of IAC and TPS electrical connectors disconnected. aurora_g1.gif

    • The idle air control (IAC) valve and throttle position (TP) sensor electrical connectors. Figure of cruise control and throttle control cables removed from throttle lever. aurora_g2.gif

    • The cruise control cable and throttle control cable from the throttle body lever.
    • The fuel pressure regulator vacuum hose, positive crankcase ventilation (PCV) hose and the throttle body vacuum port hose.
    • The throttle body coolant hoses.
    • The throttle control cable bracket, leaving the throttle and cruise cables connected.
    • The upper nut holding the throttle body to the intake manifold.
    • The throttle body assembly.
  5. Clean the gasket mating surfaces.
To Install:
  1. Install a new gasket and new studs if necessary.
  2. Install or connect the following:
    • The throttle body assembly.
    • Start the top nut by hand.
    • The throttle body coolant hoses.
    • Position the throttle control cable bracket and hand start the retaining nuts and bolt.
    • Torque the three throttle body retaining nuts to 89 in.lbs. (10 Nm). And the bracket retaining bolt to 115 in.lbs. (13 Nm).
    • The throttle body vacuum port hose, PCV valve hose and the fuel pressure regulator hose.
    • The throttle control and cruise control cables to the throttle body lever.
    • The IAC valve and TP sensor electrical connectors.
    • The air intake duct.
  3. Refill the cooling system.
  4. Install the fuel injector sight shield.
4.0L Engine To Remove:
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Relieve the fuel system pressure.
  3. Remove or disconnect the following:
    • Negative battery cable.
    • The Mass Air Flow (MAF) sensor electrical connector.
    • The air cleaner intake duct.
    • The PCV valve fresh air tube. Figure of cruise control cable removed from throttle cable bracket. aurora_g3.gif

    • The cruise control cable and throttle control cable from the bracket.
    • The cruise control cable and throttle control cable from throttle body lever. Figure of IAC valve and TPS connectors removed. aurora_g4.gif

    • The idle air control (IAC) valve and throttle position (TP) sensor electrical connectors. Figure of fuel lines removed from retainer on throttle cable bracket. aurora_g5.gif

    • The fuel feed and return lines from the retainer on the throttle control cable bracket.
    • The transaxle shift cable clip from the throttle control cable bracket. Figure of throttle body removed from water crossover. aurora_g6.gif

    • The throttle body from the water crossover.
To Install:
NOTE: The Mass Air Flow (MAF) sensor inlet and the outlet of the air cleaner assembly must line up when installed. Misalignment may cause MIL illumination or driveability concerns.
  1. Install or connect the following.
    • The throttle body to the water crossover. Torque the bolts to 106 in.lbs. (12 Nm).
    • The IAC valve and TP sensor electrical connectors.
    • The throttle and cruise control cables to the throttle body lever.
    • The throttle and cruise control cables to the throttle control cable bracket. The transaxle shift cable clip to the throttle control cable bracket.
    • The fuel feed and return line retainer to the throttle control cable bracket.
    • The MAF sensor electrical connector.
    • The air cleaner intake duct clamp. Torque the clamp to 27 in.lbs. (3Nm).
    • The PCV valve fresh air tube.
    • The fuel injector sight shield. Torque the nuts to 20 in.lbs. (2.3 Nm).
  2. Install the negative battery cable.
  3. Pressurize the fuel system and verify no leaks.
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Oct 07, 2010 | 2001 Oldsmobile Alero

1 Answer

I have a 1995 ford windstar with a 3.8 liter engine that has 142,000 miles on it. It runs fine but the check engine light comes on and stays on. I cut the battery power for a few minutes and it will stay...


All engines have to circulate fresh air of sorts or filtered air into the crankcase, and then draw out any fumes or compression blow by,in order, to not have a pressure build up, or you would get gasket leaks from the crankcase pressure. Those fumes are drawn into the induction or intake after the throttle body, in most cases on todays vehicles. The PCV Valve only prevents oil from being drawn out of valve cover and regulates the flow of air. I for one, never replace the valves,just spray them every couple years with brakleen. The valve has no envolvement, on how you vehicle performs,as long as it isn't creating a vacuum leak. Sounds as though someone removed yours.
Get the code read,that caused the check light to come on. That is another issue.

Sep 15, 2010 | Ford Windstar Cars & Trucks

1 Answer

Pulling a code of 2072 any ideas? 2005 f150


Throttle Actuator Control System - Ice Breakage

Description: This DTC only identifies that the strategy has carried out several open and close cycles to remove potential ice build up. The DTC does not imply any system concerns, only that the mode has occurred, and that mode may be causing a long start time.
Possible Causes: Ice or oil in the induction system could be the result of a positive crankcase ventilation (PCV) system concern

Diagnostic Aids: Check the PCV system for evidence of water or ice. Disconnect the air induction fresh air plenum from the throttle body. Check for water or oily residue at the PCV fresh air port. Disconnect the tube at the valve cover and check the tube for ice obstruction/ice. Start the engine and, to check the PCV system, place a piece of cardboard on the crankcase vent in the rocker cover. If the cardboard is held on the crankcase vent and fumes are not exiting, reconnect the tube to the valve cover and the air induction port. If the test passes, the PCV system is OK. If the cardboard is not held in place, turn off the engine and check the PCV valve side of the system for ice or obstruction and repair as necessary. If no obstruction is found there, isolate and repair any obstruction in the intake manifold connection. If no obstruction is found there, make sure the PCV coolant heater is functional and repair as necessary. If no concern is present, make sure the PCV valve is allowing the proper vacuum flow and repair as necessary.

Jan 04, 2010 | 2005 Ford F-150

2 Answers

Where is the air filter?


it's located on the drivers side in front of motor,housed in large black plastic case with screws

Nov 22, 2009 | 1998 Dodge Caravan

1 Answer

How to replace engine air filter


  1. Disconnect negative battery cable.
  2. Disconnect inlet air temperature sensor electrical connector.
  3. Disconnect fresh air makeup hose from throttle body air inlet hose.
  4. Disconnect PCV hose from intake manifold.
  5. Loosen hose clamp at throttle body air inlet hose. Remove hose from throttle body
  6. Push in on locking tabs to disengage air inlet hose from air cleaner housing. Remove throttle body air inlet hose and air cleaner element together.
  7. Separate air cleaner element from throttle body air inlet hose.
INSTALLATION reverse

Jun 11, 2009 | 2002 Chrysler Sebring

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