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1965 Cadillac crank case tube under intake

How to install and what are symptoms if not connected

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Will not make any difference on a vehicle of this age other than a horrid smell when stationary of hot acrid oil fumes

Posted on Nov 29, 2012


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Where is egr valve located on 2006 Cadillac DTS

I'm not familiar with your vehicle (I'm in the UK). However, the EGR valve is usually connect to the air intake.

Look for a 'unit' that is connected to the air intake via a tube.

Here's a link done with a general Google search for '2006 Cadillac DTS egr'. Hopefully you will recognise your own egr valve amongst the images:

2006 Cadillac DTS egr Google Search

Feb 24, 2016 | Cadillac Cars & Trucks

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Where is map sensor located on a 94 Cadillac DeVille 4.9 engine

Under hood, center, rear engine area, above valve cover, mounted in bracket.


Manifold Air Pressure Sensor

Fig. MAP sensor specifications-note how altitude and pressure affect the voltage readings

  1. Remove the intake manifold top cover.
  2. Disconnect the crankcase breather tube from the throttle body.
  3. Remove the MAP sensor from the intake manifold.
  4. Detach the MAP sensor electrical connector.
  5. Inspect the MAP sensor grommet for wear or damage and replace as needed.
To install:
  1. Installation is the reversal of the removal procedure.


Feb 14, 2016 | Cadillac Cars & Trucks

1 Answer

Oxygenator causing random missing

ok so throwing parts at it might fix it but more than likely you have an issue with coolant seeping into the intake from the upper intake manifold (its plastic) where the EGR tube connects to the upper manifold. There is a new updated intake for those engines, which has a bigger diameter where the tube connects, (the tube burns thru the plastic).
check which cylinder is misfiring (P0301 indicates cyl. 1 and P0302 cyl. 2 and so on) and the pull the plug where the misfire indicates and see what it looks like. Check coolant levels to verify no coolant is internally leaking in to the engine. If this is the problem you need to have it repaired immediately or risk hydro-locking the engine. If this is the case you will need to pull all the plugs and replace them, but before installing the new plugs, be sure to crank the engine over about 3 times to expel all the liquid from the cylinders.

Apr 02, 2014 | 1998 Pontiac Bonneville

2 Answers

Were can I find the transmission fluid inside the hood on a 1996 cadillac sedan deville

its on the drivers side under the air intake line from your air filter box

Oct 23, 2011 | 1996 Cadillac DeVille

1 Answer

Starter needs to be replaced. Need instruction procedure for a do it yourselfer.

Hi, I have pasted the procedure from below. Because this requires removal of the intake manifold, please be as sure as possible that your starter needs replacement. If you have any doubt, please let me know what your symptoms are and what troubleshooting you have done that led you to believe your starter is bad. Also, if you have any questions about the procedure below, please let me know. Thanks for using FixYa.

Removal & Installation

Disconnect the Negative battery cable

Relieve the fuel system pressure (you can do this by placing a rag over the schrader valve on the fuel rail and pressing in the valve stem--just be careful not to spray fuel on your eyes).

Drain the cooling system.

Remove or disconnect the following:

  • Intake manifold heat shield
  • Sight shield
  • Coil module connectors from the coil modules located on the valve covers
  • Positive Crankcase Ventilation (PCV) hose and valve from the valve cover
  • Fuel regulator vacuum tube
  • Vacuum tubes from the AIR solenoid
  • Fuel inlet and return lines
  • Fuel rail bracket retaining nut at the rear lift bracket
  • 2 pushnuts attaching the engine coolant heater wire and set it aside, if equipped
  • Fuel injector electrical connections
  • Fuel rail and injectors
  • Plenum duct clamp at the rear of the intake manifold, loosen
  • Intake manifold bolts and the manifold
Clean the manifold mating surfaces.

Remove or disconnect the following:
Starter electrical connectors Starter motor


Fig. View of starter motor removal and wires

To install:

Install or connect the following:

  • -S- terminal wire. Torque the nut to 35 inch lbs. (4 Nm).
  • Starter electrical connectors. Torque the nut to 89 inch lbs. (10 Nm).
  • Starter motor
  • Mounting bolts. Torque the bolts to 22 ft. lbs. (30 Nm).


Fig. Intake manifold torque sequence- 4.6L engines

  1. Grease the inside edge of the rubber plenum duct.
  2. Position the intake manifold by performing the following sub-steps:
    1. Place the rear of the intake manifold into the plenum duct.
    2. Place the front of the intake manifold downward on to the cylinder heads.

  3. Install the intake manifold bolts and torque to 89 inch lbs. (10 Nm) in the sequence illustrated. DO NOT torque the intake manifold bolts when the engine is HOT or at operating temperature.
  4. Make sure the plenum duct is fully attached to the rear of the intake manifold and tighten the plenum duct clamp to 20 inch lbs. (2.25 Nm).
  5. Install or connect the following:

    Fuel rail and injectors and tighten the rail retainers to 89 inch lbs. (10 Nm) Fuel injector electrical connections Alternator coolant pipe/surge tank pipe and position onto the fuel rail studs Engine coolant heater wire onto the studs and install the pushnuts, if equipped Fuel rail bracket retaining nut at the rear lift bracket and tighten to 89 inch lbs. (10 Nm) Fuel inlet and return lines Vacuum tubes to the AIR solenoid Fuel regulator vacuum tube Positive Crankcase Ventilation (PCV) valve and hose to the valve cover Coil module connectors to the coil modules located on the valve covers Sight shield Intake manifold heat shield Negative battery cable
  6. Fill and bleed the cooling system.

Mar 31, 2011 | 2002 Cadillac Deville

2 Answers

I can't locate the starter relay for cadillac deville 2002

The starter relay is on the drivers side of the engine compartment behind the air filter housing under the fuse box cover

May 18, 2009 | 2002 Cadillac Eldorado

2 Answers

How to install a intake on a big block chevy corvette

That depends on type of gasket being used. Some fel-pro gaskets have sealant built into the gaskets, I have used some sealant to help hold gaskets in place around bolt holes during installation but that's not always necessary...and yes there is a torque sequence for intake manifolds...example given in link.

The balancer should be torqued also...85 - 90 Ft-lbs if I remember correctly. The balancer should be all the way back when completely torgued, if not you may need to check for clearance problems.

Apr 05, 2009 | 1965 Chevrolet Corvette

1 Answer

2005 dodge caravan sxt

Hi sapperstein,

What you're looking for should be on the upper end of the tappet cover, and connected to the intake manifold, probably by way of a flexible tube....PVC refers to 'positive crank ventilation'..... It a way of re-burning the gases, created in the crank case....

regards Johngee10

Aug 13, 2008 | 2005 Dodge Caravan

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