Lincoln vs Cadillac - Do It Yourself Car Repair   Cadillac
Lincoln vs Cadillac Forums - - - LVC Tech Articles Home

 
 

Replace the V6 Lincoln LS Intake Manifold

   

Lincoln LS

Submitted by: Quik LS

You must remove the V6 intake when changing spark plugs, replacing coils or replacing the PCV valve.

 

Intake Manifold -Upper

Removal
1.       Disconnect the battery ground cable.
2.       Drain the engine cooling system.
3.       Remove the engine appearance cover.
4.       Remove the air cleaner outlet tube.
5.       Disconnect the throttle position (TP) sensor and the idle air control (IAC) solenoid electrical connectors.
6.       Disconnect the accelerator and speed control cables.
7.       Remove the cable bracket.
1.       Remove the bolts.
2.       Remove the bracket.
8.       Disconnect the throttle body hoses.
1.       Disconnect the coolant hoses.
2.       Disconnect the positive crankcase ventilation (PCV) hose.
3.       Disconnect the vapor purge hose.
9.       Disconnect the vacuum hose.
10.   Disconnect the EGR to exhaust manifold tube nut.
11.   Remove the cowl vent screen.
12.   Remove the brace.
13.   Remove the vacuum hoses from the mounting bracket.
14.   Remove the bracket and position the accelerator and cruise control cables aside.
15.   Disconnect the differential pressure feedback EGR electrical connector.
16.   Remove the stud and nut and position the differential pressure feedback EGR transducer aside.
17.   Remove the fuel pressure sensor shield.
1.       Remove the nut.
2.       Remove the bolts.
3.       Remove the shield.
18.   Disconnect the vacuum hose from the rear of the upper intake manifold.
19.   Disconnect the intake manifold tuning valve (IMTV) electrical connector.
20.   Disconnect the exhaust vacuum regulator (EVR).
1.       Disconnect the electrical connector.
2.       Disconnect the vacuum line.
21.   Remove the upper intake support bolt.
22.   Remove the front intake manifold support bolt.
23.   Remove the bolts and the upper intake manifold.
Inspect the gaskets and discard as necessary.
Installation
1.       Position the upper intake manifold and gaskets.
2.       Install the fuel pressure sensor shield.
1.       Position the shield.
2.       Install the nut.
3.       Install the upper intake manifold bolts and tighten in the sequence shown.
4.       Position the differential pressure feedback EGR and install the nut and stud.
5.       Install the upper intake manifold support bolt.
6.       Install the upper intake support bolt.
7.       Connect the exhaust vacuum regulator (EVR).
1.       Connect the electrical connector.
2.       Connect the vacuum line.
8.       Connect the intake manifold tuning valve (IMTV) electrical connector.
9.       Connect the vacuum hose to the rear of the upper intake manifold.
10.   Position the differential pressure feedback EGR electrical connector.
11.   Connect the differential pressure feedback EGR electrical connector.
12.   Position the accelerator and cruise control cables and install the bracket.
13.   Clip the vacuum hoses into the mounting bracket.
14.   Install the brace.
15.   Install the cowl vent screen.
16.   Connect the EGR to exhaust manifold tube nut.
17.   Connect the vacuum hose.
18.   Connect the throttle body hoses.
1.       Connect the coolant hoses.
2.       Connect the PCV hose.
3.       Connect the vapor purge hose.
19.   Install the cable bracket.
1.       Position the bracket.
2.       Install the bolts.
20.   Connect the accelerator and speed control cables.
21.   Connect the TP sensor and the IAC solenoid electrical connectors.
22.   Install the air cleaner outlet tube.
23.   Install the engine appearance cover.
24.   Fill the engine cooling system.
25.   Connect the battery ground cable.


This area is intended for Tech Tips submitted by members of LincolnvsCadillac.com. The opinions expressed here are the opinions of the individual author and do not necessarily represent the views of LincolnvsCadillac.com. Undertake these procedures at your own risk. If you have any comments or questions please contact the individual authors. Reader assumes all the risk associated with the installation of aftermarket products. LincolnvsCadillac.com and its owners are not responsible for any direct or indirect damage to the vehicle, person or persons and the resulting costs incurred from the installation or use of these products. LincolnvsCadillac.com recognizes that "Cadillac" and "Chevrolet" and their respective logos, model names and numbers are registered trademarks of the General Motors Corporation. These and other terms used on this website are used for identification purposes only. Lincolnvscadillac.com is not affiliated in any way with the General Motors Corporation, Cadillac, Chevrolet, Mobil or any other website or company listed herein.