Question about 2000 Chevrolet Blazer

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New Intake Gaskets on 91 4.3 Blazer

Do the rear ports on each gasket ned to be removed, or the one where the heater hose goes, or the one on the other side? Could not tell when I removed the intake. Thanks!

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Question... do you still have the old gasket? if you do... just use that as your guide... if not... i couldn't tell you man, the only thing is... i hope you saved the old gasket... because if you didn't... then there's nothing anyone can do for you... your only option is just to take it to the chevy house and have it done... sorry, like you said... you couldn't tell when you removed the intake... and well... if you leave out a hole... or have a hole where you're not suppse to... things are going to get interesting for you... either you won't get it started... or... you may very well catch the car on fire because the fuel may go into some place that causes a spark... and things will go bad very quickly... so for your safety... just let the chevy house do it... o.k.

Posted on Oct 25, 2008

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Replace intake manifold gasket; 4.3L V-6


do you have a coolant leak or oil leak. ive always discarded the rubber gaskets provided in gasket kit, and instead, ran a good thick bead of silicone. The rubber gaskets, ive found, can be pushed out, either when setting intake on engine, or if the engine has a bad pcv valve, pressure within block can blow them out. make sure and check pcv valve. after the new intake gaskets are placed on the head, dab a bit more on the 4 corner nubs of the gaskets. i like to use an anearobic sealer around the coolant ports, just thin layer on both sides of gasket. hope this helps. James White, White Auto, Hopkins Mo. 17 yr ASE tech.

Sep 29, 2012 | 1989 Chevrolet S-10 Blazer

1 Answer

What is the torque specs on intake 4.3 l v6 vortec


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To install:

  1. Clean all gasket surfaces completely.
  2. Install the intake manifold gaskets with the port blocking plates facing the rear of the engine. Factory gaskets should have the words "This Side Up" visible.
  3. Apply gasket sealer to the front and rear sealing surfaces of the engine block.
  4. Apply a 0.197 inch (5mm) bead of RTV sealer to the front and rear of the block. Extend the sealer approximately 1 / 2 -inch (13mm) onto the heads.
  5. Install the lower intake manifold.
  6. Apply sealer to the lower intake manifold bolts prior to installation.
  7. Install the bolts and tighten in sequence and in 3 steps as follows:
    1. First step to 26 inch lbs. (3 Nm).
    2. Second step to 106 inch lbs. (12 Nm).
    3. Final step to 11 ft. lbs. (15 Nm).

  8. If removed, install the alternator bracket bolt.
  9. Install the coolant by-pass hose.
  10. Install the EGR valve.
  11. Connect the upper radiator hose to the thermostat housing.
  12. Connect the heater hose to the lower intake manifold.
  13. Connect the fuel pressure and return lines to the lower intake manifold.
  14. Connect the wiring harnesses and brackets to the lower manifold.
  15. Install the throttle cable bracket, then attach the throttle cable and the cruise control cable (if equipped).
  16. Install the transmission oil level indicator and tube, if equipped.
  17. Install the EGR tube, clamp and bolt.
  18. Install the PCV valve and hose.
  19. Install the A/C compressor and bracket.
  20. Install the distributor.
  21. Install the upper intake manifold.
  22. Fill the cooling system.
  23. Connect the negative battery cable.
  24. Start the vehicle and check the ignition timing (not adjustable).
  25. Verify no oil, coolant, vacuum or fuel leaks.

    0900c1528008ee88.gif

  26. Install the intake manifold bolts and tighten them to 35 ft. lbs. (48 Nm) in the sequence shown.

May 09, 2011 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

How to replace an intake manifold gasket on a 1996 gmc jimmy


Hello,

Here is a detailed summary on the procedure of how to replace the intake manifold gasket on a 1996 gmc jimmy;
REMOVING THE UPPER INTAKE MANIFOLD(PLENUM)
STEP 1 Disconnect Battery (may not be absolutely necessary, but a good practice to avoid shorting a positive wire to ground).


STEP 2 Remove serpentine belt.

STEP 3 Drain the coolant.

STEP 4 Remove air cleaner ducting and disconnect wires.

STEP 5 Disconnect throttle linkage and bracket.

STEP 6 Disconnect cruise control cable.

STEP 7 Remove brake booster vacuum hose at manifold.

STEP 8 Remove PCV hose.

STEP 9 Remove ignition coil and bracket.

STEP 1O Remove purge solenoid and bracket.

STEP 11 Relieve fuel pressure at test port.

STEP 12 Remove fuel lines and bracket.

STEP 13 Remove upper intake manifold.

REMOVING THE LOWER INTAKE MANIFOLD
STEP 1 Remove the distributor and label the spark plug wires.

STEP 2 Remove heater hoses and bypass hose.

STEP 3 Remove upper radiator hose.


STEP 4 Remove EGR valve?

STEP 5 Remove sensors and bracket on right side.

STEP 6 Remove EGR tube, clamp and bolt.

STEP 7 Remove PCV valve (and replace).

STEP 8 Unbolt A/C compressor and move it aside.

STEP 9 Loosen compressor bracket and slide forward, but do not remove it.

STEP 10 Remove alternator bracket bolt (or remove alternator and set aside)

STEP 11 Unplug all vacuum lines from intake manifold.


STEP 12 Unplug all electrical connectors from manifold.

STEP 13 Take note of the intake manifold bolts and mark the location of the bolts.


STEP 14 Remove intake manifold bolts, and manifold.

STEP 15 Clean mating surfaces

THE MAIN INSTALLATION
STEP1 Set the new gaskets in place and apply silicone to flat areas on front and rear of engine block.

STEP2 Apply thread locking compound to manifold bolts.

STEP 3 Install the manifold and tighten bolts to 35 ft-lbs, in proper sequence.

STEP4 Install the distributor.

STEP5 Install the upper intake manifold.



The remaining installation procedures are basically the reverse of removal.


Have a nice day.

Dec 04, 2010 | 1996 GMC Jimmy

1 Answer

Heater not blowing heat only cold


Check the coolant level. It is common for the intake gaskets to leak causing the coolant level to drop. The first thing to stop working when the coolant gets low is the heater. Top off the coolant and determine where you are leaking coolant whether it be the intake gaskets, hoses, radiator, water pump, etc.

If the coolant is full what does the temp gauge say? Once the vehicle is warmed up it should read around the 200 degree mark. If its below 190 than the t-stat is stuck open. Replace the thermostat.

If both of those are fine and the coolant looks like mud than your heater core is plugged. You can try back flushing it with a water hose. Remove both of the heater core hose and use a water hose to flush out the heater core. This may take several tries before you start to feel some heat.

Nov 14, 2010 | 2001 Chevrolet Blazer

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

3 Answers

Anti-freeze leaking from the back of the engine


its the lower intake gaskets that go out on them

Jun 05, 2010 | 2002 Chevrolet Blazer

1 Answer

No heat before or after replacing thermostat


Remove both of the heater core hoses. Using a water hose, force water through the heater core in the smaller hose connection first. Chuncks of rust or mud looking stuff can plug the core. Move the hose to the other connection then go back and forth a few times until the core is clear of debris.

Check the engine for coolant leaks before doing anything. Fix any leaks. Check the intake gaskets and the radiator cap.

Dec 06, 2009 | 2000 Chevrolet Blazer

1 Answer

Hot do you take off a 98 GMC 5.7 vortec intake


Note, removing the upper intake manifold is not necessary when removing lower intake manifold, they are removed as an assembly.
Disconnect negative battery cable. Drain cooling system. Remove air cleaner assembly and inlet duct. Mark and remove distributor. Remove upper radiator hose at thermostat housing. Disconnect accelerator and cruise control cables. Remove heater hoses from intake manifold. Remove EGR pipe.
Disconnect fuel lines at rear of engine. Remove AC compressor and set aside(leave hoses connected). Remove canister purge solenoid. Disconnect theSCPI injector, ignition coil, Ignition Control Module, generator,IAC motor, TP sensor, O2 sensor, Exhaust Gas Recirculation valve and Engine Coolant Temperature sensor wiring harness connectors. Remove PCV valve and hose. Remove lower intake manifold bolts. Remove lower intake manifold.
Installation.
Always use New O-rings when reconnecting fuel lines at rear of engine. Apply a bead of RTV silicone sealer along the front and rear sealing surfaces of the block.See Fig.6. Install new gaskets and intake manifold on block while RTV is still wet to the touch. Use Threadlock 12345382 or equivalent to lower intake manifold bolts. Tighten lower intake manifold bolts in sequence to specification table. See fig. 7. To complete installation, reverse removal procedure.f52665d.gifabc2b5f.gif

Oct 10, 2009 | 1998 GMC Sierra

1 Answer

Intake heater hose leak


u sure do. not to hard to do be sure to replace gaskets and knowing if u have a dorman intake or stok helps gaskets are different most part stores will have to order the dorman gaskets. and DO NOT OVERTHIGHTEN !!!!!

Jan 08, 2009 | 1996 Mercury Grand Marquis

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