Question about Pontiac Bonneville

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My car blew the upper intake manifold gasket out so i replaced it and now it is flooding and won`t start

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  • Pontiac Master
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Im not sure what year, make or model car this is, the most common reason for a no start after an intake gasket chage is due to installing push rod in the wrong spot, this is mainly ture on the 3.1 and 3.4 and 2.8 and some other engines, the intake and exhaust push rods are diffrent sizes, i belive the exhaust valve uses a little longer pushrod than the intake, remove the valve cover and remove loosen the rocker arm and pull the first two push rods out, see if they are diffrent sizes, if so then install them in the correct location,let me know the result good day.

Posted on Apr 03, 2011

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On a 2000 explorer 4.0 Soho do I have to remove the injectors to remove the lower intake


REMOVE UPER INTAKE 97 EXPLORER V6 4.0 - YouTube

? 12:22
https://www.youtube.com/watch?v=ugExJ0wkP8A
Jun 11, 2013 - Uploaded by Sum Guy
REMOVE UPER INTAKE 97 EXPLORER V6 4.0 ... I was told that all I have to do is remove the fan belt to get access to it ... FordExplorer 2000 intake manifold gasket upper lower P0174 by froggy - Duration: 36:54. by froggy 36,588 views ... Ford Explorer 4.0L SOHC Rough Idle P0171 P0174 Lean Codes ...

Putting the lower intake on my 1997 Ford Explorer 4.0 OHV ...

? 5:23
https://www.youtube.com/watch?v=qKE1vPxqPHs
Jun 27, 2010 - Uploaded by origionaldz
Putting the lower intake on my 1997 Ford Explorer 4.0 OHV sport .... I do have a 2000 5.0 ... @michaelheiland123654 To dothis job, you have to remove the alternator, unbolt the AC compressor, remove upper intake manifold, remove fuel rail,remove all injectors, ... Do you have the SOHC or OHV version?

1999 Ford Explorer 4.0L -need assistance on removing upper intake ...

www.automotiveforums.com > ... > Ford > Explorer ' Explorer Sport Trac
Sep 20, 2011 - 1999 Ford Explorer 4.0L -need assistance on removing upper intake ...Are you sure you have the OHV/pushrod engine and not the SOHC engine? ... Do youhave the upper intake manifold loose, you just are unable to ... the lower intake gasket, valve cover gaskets, Injector o-rings, plugs and wires. Thanks ...

How to replace upper intake manifold gaskets - Ford Explorer




Dec 09, 2015 | Cars & Trucks

Tip

How to remove/replace the Valve Cover Gaskets on a New Beetle car?


Replace the valve cover gasket if the valve cover gaskets are leaking or if they're worn. The procedure is as follows:--
1) First of all let the motor cool down if the car was recently driven. Then remove the air intake boot.The air intake boot ios attached to the engine's throttle body.
2) Carefully disconnect the throttle cable , hoses and electrical connectors located on the upper intake manifold.
3) Then disconnect the hard pipe that is connected to the EGR (exhaust gas recirculation) valve.
4) The EGR valve is located beneath the upper intake manifold.
5) Then remove the bolts from both the upper intake manifold and the manifold support bracket.
6) Now the upper intake main fold and lower intake manifold both have got loose as you removed the nut.
7) After that remove the upper intake manifold from the lower intake manifold. Carefully place clean rags over the intake runners to prevent anything from falling into the intake system.
8) Then you will have to disconnect the crank case breather valve on the valve cover.
9) Then remove the bolts from the valve cover and remove the reinforcing straps.
10) Then remove the camshaft belt cover and the dust shield from the back of the camshaft sprocket.
11) Now carefully remove the valve cover. Properly clean the old gasket material with gasket remover.
12) You can install a new gasket in the reverse procedure of removal.


This will help. good luck.

on Mar 09, 2010 | Volkswagen Beetle Cars & Trucks

1 Answer

Engine blew white smoke. I replaced the head gasket and intake(lower) gasket. It still smokes and is getting antifreeze I'n the cylinders. I did not replace the plenium chamber gasket. Their was some...


Hey Baptized,
You need to replace ALL the gaskets that seal coolant from ANYTHING... You may have a cracked head, cracked intake manifold,, or at worse a cracked block - between the coolant passages and the combustion chamber area...If you have a aluminum intake and cast iron heads.. this is a potential leak creator when the engine gets hot and cold quickly...make sure ALL the gasket surfaces are CLEAN.. and use:
http://www.oreillyauto.com/site/c/detail/PERN/80064/N2362.oap

DO NOT use silicone sealant - period!

Jun 10, 2017 | 1998 Buick LeSabre

1 Answer

Don,t want to run or idle when cold


They put two different motors in the Explorer 4.0 overhead valve with vehicle Id code of( X) and the 4.0 single overhead Cam and a vehicle code of (E) If your vehicle has a E in the vehicle Id number I would replace the upper intake manifold gaskets. This particular Motor is very prone for the the upper Intake manifold gasket drying out and causing a large vacuum leak. The symptoms are engine will not Idle on dies on cold start up and after the engines reaches operating Temp idles fine .replace the upper intakes gaskets and I am sure you"ll be in great shape. Thanks for using fixya

Jan 07, 2011 | 1998 Ford Explorer

1 Answer

Coolant leaking in and around the intake manifold as well as the under carriage of that same part I think. Outake? I know that the part that attaches to the manifold appears to be metal but the manifold...


The plastic piece is the upper intake manifold. The metal part is the lower intake manifold. Sometimes the gaskets go bad between the upper and lower intake manifolds. But usually the upper intake manifold is cracked and needs replaced.

Nov 11, 2010 | 1993 Buick Park Avenue

1 Answer

Torque sequence for 1996 chevrolet van intake manifold with a 4.3 litre moter


Ha, you tried to fool me with the bit about a 3.5 L motor--I could find that one...here is the complete procedure from AutoZone.com:




Installation To install:
  1. Clean the gasket mounting surfaces. Be sure to inspect the manifold for warpage and/or cracks. If necessary, replace it.
  2. Position the gaskets on the cylinder head with the port blocking plates to the rear and the This Side Up stamps facing upward. Then apply a 3 / 16 in. (5mm) bead of RTV sealant on the front and rear of the engine block at the block-to-manifold mating surface. Extend the bead 1 / 2 in. (13mm) up each cylinder head to seal and retain the gaskets.

    0996b43f80208c7b.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Lower intake manifold tightening sequence-4.3L engines
  3. Install the lower intake manifold. Tighten the bolts in sequence and in 3 steps, as follows:


    1. Step 1: 26 inch lbs. (3 Nm).
    2. Step 2: 106 inch lbs. (12 Nm).
    3. Step 3: 133 inch. lbs. (15 Nm).

  4. Install or connect the following:

    Power steering pump Alternator bracket bolt near the thermostat housing Wiring harness to the lower manifold components, including the injector, EGR valve and ECT sensor Air conditioning compressor bracket-to-the lower intake manifold pencil braces
  5. Install transmission oil dipstick tube, if necessary.

    Fuel supply and return lines to the rear of the lower intake
  6. Temporarily reattach the negative battery cable, then pressurize the fuel system (by cycling the ignition without starting the engine) and check for leaks.
  7. Disconnect the negative battery cable.
  8. Install or connect the following:

    Heater hose to the lower intake Upper radiator hose to the thermostat housing Distributor assembly and engage the wiring Ignition coil Connect vacuum hoses to the upper and lower intake manifold. New upper intake manifold gasket, making sure the green sealing lines are facing upward Upper intake manifold Manifold retainers. Tighten them to 88 inch lbs. (10 Nm) using two passes. Purge solenoid and bracket Brake booster vacuum hose at the upper intake manifold PCV hose to the rear of the upper intake manifold Vacuum hoses to both the front and rear of the manifold assembly Throttle body Throttle linkage to the upper intake Wiring to the upper intake components including the TP sensor, IAC motor, MAP sensor and the fuel meter Engine cover Air intake assembly
  9. Connect negative battery cable.
  10. Refill the engine cooling system.
  11. Start the engine and check for leaks.

Aug 26, 2010 | 1996 Chevrolet Astro

2 Answers

Need to replace the intake manifold


3.8L Engine (most common) Upper Intake Manifold To Remove:
  1. Drain the cooling system.
  2. Remove or disconnect the following:
    • Negative battery cable.
    • Fuel injector sight shield.
    • Air cleaner intake duct.
    • Right spark plug wires from the ignition control module and reposition.
  3. Relieve the fuel pressure.
  4. Remove or disconnect the following:
    • Fuel rail assembly.
    • Brake booster hose from the vacuum source manifold in the upper intake manifold.
    • Exhaust Gas Recirculation Valve (EGR) wiring harness heat shield nut, bolt and the EGR heat shield.
    • Throttle body support bracket upper bolt.
  5. Disconnect the electrical connectors from the following:
    • EVAP purge solenoid
    • Throttle Position (T/P) sensor
    • Idle Air Control (IAC) valve
    • Manifold Absolute Pressure (MAP) sensor
    • Mass Air Flow (MAF) sensor
    • EVAP purge solenoid vacuum line from the throttle body.
    • Accelerator and the cruise control cables with the bracket from the throttle body.
  6. Remove or disconnect the following:
    • Upper intake manifold bolts and stud.
    • Clean the upper intake manifold bolt threads.
  7. Remove or disconnect the following:
    • Upper intake manifold by lifting the back of the intake and sliding the manifold forward from the throttle body support bracket.
    • Upper-to-lower intake manifold carrier gasket from the upper intake manifold.
  8. If the upper intake manifold is being replaced, remove the following:
    • Throttle body assembly.
    • Manifold Absolute Pressure (MAP) sensor.
    • Positive Crankcase Ventilation (PCV) valve.
    • Vacuum source manifold.
Upper intake manifold bolt torque sequence (3.8L engine) gm-03-38-530.gif

To Install:
  1. If the manifold was replaced, install or connect the following:
    • Vacuum source manifold.
    • Positive Crankcase Ventilation (PCV) valve.
    • Manifold Absolute Pressure (MAP) sensor.
    • Throttle body assembly.
    • Upper-to-lower intake manifold carrier gasket to the upper intake manifold.
  2. Carefully place the upper intake manifold onto the lower intake manifold. Ensure that the alignment pins in the upper intake manifold align with the holes in the lower intake manifold. NOTE: Apply thread lock compound, to the bolt threads before assembly.
  3. Install or connect the following:
    • Upper intake manifold. Tighten the upper intake manifold bolts in sequence to 89 in lbs (10 Nm)
    • Accelerator and the cruise control cables with the bracket to the throttle body.
    • EVAP purge solenoid vacuum line to the throttle body.
  4. Connect the electrical connectors to the following:
    • Mass Air Flow (MAF) sensor
    • Manifold Absolute Pressure (MAP) sensor
    • Idle Air Control (IAC) valve
    • Throttle Position (T/P) sensor
    • EVAP purge solenoid
  5. Install or connect the following:
    • Throttle body upper support bracket bolt. Tighten the bolt to 89 in lbs (10 Nm)
    • EGR valve wiring harness heat shield, nut and the bolt. Tighten the nut and the bolt to 89 in lbs (10 Nm)
    • Brake booster hose to the vacuum source manifold.
    • Fuel rail assembly.
    • Right spark plug wires.
    • Air cleaner intake duct.
    • Fuel injector sight shield.
  6. Connect the negative battery cable.
  7. Fill the cooling system.
  8. Inspect for fluid or vacuum leaks.
Lower Intake Manifold (W/O Supercharger) To Remove:
  1. Remove or disconnect the following:
    • Upper intake manifold.
    • Generator brace.
    • Drive belt tensioner with the mounting bracket and the heater water bypass inlet pipe.
    • Exhaust gas recirculation EGR outlet pipe bolt from the lower intake manifold.
    • Radiator inlet hose from the water outlet housing.
    • ECT sensor electrical connector.
    • Right upper engine mount strut bracket.
    • Generator brace bracket bolts.
    • Generator brace bracket.
    • Lower intake manifold bolts.
    • Lower intake manifold.
    • Lower intake manifold seals.
    • Lower intake manifold gaskets.
  2. If replacing the lower intake manifold, Remove or disconnect:
    • Water outlet housing bolt and stud
    • Water outlet housing
    • Gasket and the thermostat.
    • ECT sensor.
  3. Inspect the flatness of inlet flanges.
  4. Clean the intake manifold mating surfaces.
  5. Clean the intake manifold bolts and bolt holes of adhesive compound.
To Install:
  1. If removed, install the ECT sensor.
    • Tighten the ECT sensor to 18 ft. lbs. (25 Nm)
  2. If removed, install the thermostat, the gasket, and the water outlet housing.
  3. If removed, install the water outlet housing bolt and the stud.
    • Tighten the bolt and stud to 20 ft. lbs. (27 Nm)
  4. Install or connect the following:
    • Lower intake manifold gaskets. NOTE: Apply sealer GM P/N 12346286 (Canadian P/N 10953472) or equivalent to the ends of the intake manifold seals.
    • Lower intake manifold seals.
    • Lower intake manifold.
    • Lower intake manifold bolts.
    NOTE: Apply thread lock compound GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the two hidden bolts and ensure they are installed.
  5. Tighten the lower intake manifold bolts in sequence to 11 ft. lbs. (15 Nm) gmpc_v6_5.gif

  6. Install or connect the following:
    • Generator brace bracket.
    • Generator brace bracket bolts. Tighten the bolts to 37 ft. lbs. (50 Nm)
    • Right upper engine mount strut bracket.
    • ECT sensor electrical connector.
    • Radiator inlet hose to the water outlet housing.
    • EGR outlet pipe to the lower intake manifold.
    • EGR outlet pipe bolt to the lower intake manifold. Tighten the bolt to 21 ft. lbs. (29 Nm)
    • Drive belt tensioner.
    • Generator brace.
    • Upper intake manifold.
  7. Inspect for leaks.
Lower Intake Manifold (W/ Supercharger) To Remove:
  1. Disconnect the negative battery cable.
  2. Drain the cooling system.
  3. Remove the supercharger.
  4. Remove the thermostat housing.
  5. Remove the EGR pipe at the intake manifold.
  6. Disconnect the electrical connection at the temperature sensor.
  7. Remove the intake manifold and gaskets.
NOTE: The coolant bypass tube will release from the intake manifold when the manifold is removed.
To Install:
  1. Clean the gasket sealing surfaces.
  2. Install the intake manifold gaskets.
  3. Align the coolant bypass tube with the opening in the intake manifold and install the manifold. Tighten the bolts to 11 lb ft (15 Nm).
  4. Install the electrical connector to the temperature sensor.
  5. Install the EGR pipe to the intake manifold.
  6. Install the thermostat housing.
  7. Install the supercharger.
  8. Fill the cooling system.
  9. Connect the negative battery cable.

Aug 05, 2010 | 1997 Pontiac Grand Prix

1 Answer

#3 CYLINDER IS FULL OF FEUL AND TRUCK WILL NOT START.REMOVED SPARK PLUGS AND GAS POURS ON GROUND WHEN KEY IS TURNED ON FROM #3 CYLINDER PLUG HOLE.


The Vortec engines were notorious for those kind of problems. The problem will be under the upper-intake manifold, and the fuel injector assembly will either have a cracked plastic fuel line running out to one or more of the fuel injectors, or the fuel pressure regulator that is located on the end of the fuel injector assembly is faulty or it has detached from the fuel injector assembly. Either way the lower intake manifold will be flooded with fuel anytime that the fuel pump runs.

There were two types made, the first type had fuel lines that connected to the lower intake manifold, and then from the metal fittings the fuel line turns into plastic and runs inside the lower intake manifold and under the upper-intake manifold where it runs over to the fuel injector assembly, and this type can really flood out an engine when it becomes faulty.

The second type had metal fuel lines running over the upper intake manifold and they connected to the top of the fuel injector assembly, however, under the upper-intake manifold there are still plastic lines to the fuel injectors and also the fuel pressure regulator that could be faulty and cause the engine to severely flood.

The upper-intake manifold is not that difficult to remove, and after you remove the upper-intake manifold then (replace the fuel lines to the fuel injector assembly if it is the second type) turn the ignition to the "Run" position and when the fuel pump runs you should see where the fuel is leaking/spraying from, and it will most likely be a large high pressure leak from a ruptured plastic fuel line.

Let me know if you require any further assistance.

Jul 20, 2010 | 1994 Chevrolet S-10 Blazer

2 Answers

Pontiac bonneville 3.8 vin code k . I replaced the in take gasket because it was leaking water between the top an bottom intakes going into the cyclinder heads its still leaking after all this work ive...


This is the entire task for it. It sounds like you might not have torqued it correctly, or your intake is cracked. But take a look at all of the info:

VIN K Engine On these engines, the upper and lower intake manifolds must be removed separately.
  1. Properly relieve the fuel system pressure, as outlined in Section 5 of this manual.
  2. Disconnect the negative battery cable.
  3. Drain the cooling system into a suitable container.
  4. Remove the fuel injector sight shield and air intake duct.
  5. Tag and disconnect the spark plug wires on the right side of the engine and position aside.
  6. Remove the manifold vacuum source.
  7. Remove the fuel rail.
  8. Remove the EGR heat shield.
  9. Unfasten the cable bracket-to-cylinder head mounting bolt.
  10. Disconnect the throttle cable.
  11. Remove the throttle body support bracket.
  12. Unfasten the upper intake manifold bolts, then remove the upper manifold.
This engine has two bolts which are hidden beneath the upper intake. These bolts are located in the right front and left rear corners of the lower intake manifold. This is why it is necessary to remove the upper before servicing the lower manifold.
  1. Disconnect the upper radiator hose.
  2. Remove the alternator, as outlined in Section 2 of this manual.
  3. Remove the drive belt tensioner.
  4. Remove the EGR valve outlet pipe.
  5. Unfasten the intake manifold bolt, then remove the manifold from the vehicle. Remove and discard the gaskets. Thoroughly clean the gasket mating surfaces, intake manifold bolts and bolt holes.
To install:
  1. Position a new gasket, then place the lower intake manifold over it. Apply a suitable threadlocking compound to the bolts, then install them. For 1995 vehicles, tighten the bolts twice, to 88 inch lbs. (10 Nm), in the sequence shown in the accompanying figure. For 1996-97 vehicles, tighten the bolts to 11 ft. lbs. (15 Nm), in the sequence shown in the accompanying figure.
    1. Install the EGR valve outlet pipe.
    2. Install the drive belt tensioner.
    3. Install the alternator.
    4. Connect the upper radiator hose.
    5. Position the upper intake manifold on the lower manifold. Install the retaining bolts and tighten to 89 inch lbs. (10 Nm).
    6. Install the throttle body support bracket, then connect the throttle cable.
    7. Install the cable bracket-to-cylinder head mounting bolt.
    8. Install the EGR heat shield.
    9. Install the fuel rail.
    10. Install the manifold vacuum source.
    11. Connect the right side spark wires on the right side of the engine.
    12. Install the fuel injector sight shield and air intake duct.
    13. Fill the cooling system with the proper type and amount of fluid.
    14. Connect the negative battery cable. Start the engine and check for leaks. Check the cooling system, and add as necessary.

Oct 18, 2009 | 1995 Pontiac Bonneville

1 Answer

Intake manifold gasket / replace


3.8L Engine

NOTE The 3.8L (VIN K) non-supercharged engine uses a two-piece intake manifold consisting of an upper air plenum which mounts the throttle body and a lower intake manifold assembly which houses the fuel injectors. The 3.8L (VIN 1) supercharged engine uses a similar lower intake manifold. The supercharger serves as the upper manifold.
Lower Manifold

NOTE Two bolts which fasten the lower intake manifold to the cylinder head are accessible only after the upper intake manifold is removed. These bolts are located in the right front and left rear corners of the lower intake manifold. Remove the upper intake manifold to service the lower intake.
The 3.8L (VIN 1) supercharged engine uses a manifold similar to the 3.8L (VIN K), but the supercharger serves as the upper manifold.
  1. Disconnect the negative battery cable.
  2. On 3.8L (VIN 1) engines, remove the supercharger assembly. Please see the procedure in this section.
  3. Remove the upper intake manifold using the procedure above.
  4. Remove the EGR outlet pipe from the intake manifold.
  5. Detach the engine coolant temperature sensor wiring harness from the sensor.
  6. Remove the lower intake manifold bolts and carefully lift off the manifold.

To install:


0900c15280269f1b.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Lower intake manifold bolt torque sequence-3.8L (VIN K) engine
  1. Clean all parts well with degreaser, especially the gasket seal surfaces on the upper and lower manifold pieces and between the lower manifold and the cylinder heads..
  2. Install new gaskets to the cylinder heads and new seals to the engine block. Carefully lower the manifold into place. Apply thread-locking compound to the bolt threads. Make sure to install the two hidden bolts in the lower intake manifold. Hand start all bolts, then torque evenly to 11 ft. lbs. (15 Nm). Follow the toque sequence, starting in the center, then working outwards in a circle.
  3. Install the remaining components in the reverse order of the removal process.

Upper Intake Manifold (Plenum)
  1. Disconnect the negative battery cable.
  2. On 3.8L (VIN 1) engines, remove the supercharger assembly. Please see the procedure in this section.
  3. Tag for identification, then remove the right side spark plug wires.
  4. Disconnect the ignition wires from the fuel rail.
  5. Remove the fuel rail. Please see Section 5.
  6. Remove the cable bracket from the intake manifold.
  7. Remove the throttle body.


NOTE Two bolts which fasten the lower intake manifold to the cylinder head are accessible are accessible only after the upper intake manifold is removed. These bolts are located in the right front and left rear corners of the lower intake manifold.
  1. Remove the upper intake manifold bolts and carefully lift the upper intake manifold from the engine.



0900c15280269f1c.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Upper intake manifold and bolt torque sequence-3.8L (VIN K) engine
To install:
  1. Clean all parts well with degreaser, especially the gasket seal surfaces on the upper and lower manifold pieces.
  2. Install new gaskets to the cylinder heads and new seals to the engine block. Carefully lower the manifold into place. Make sure to install the two hidden bolts in the lower intake manifold. Hand start all bolts, then torque evenly to 89 inch lbs. (10 Nm). Follow the torque sequence, starting in the center, then working outwards in a circle.
  3. Install the remaining components in the reverse order of the removal process.

Sep 11, 2009 | 1999 Buick Regal

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