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1992 buick roadmaster, 5.7; I just finished replacing the intake manifold gaskets and the valve cover gaskets to repair a oil leak. I've checked to ensure all of the wiring harness connectors are in place. and now any time i put it in gear, the oil gauge drops and while im driving it and trying to maintain a speed it acts like its starving for gas and sputter .. if i put the gas pedal to the floor its fine but while trying to maintain a speed it does this .. sometimes it wont do it until the car warms up .. also there are strong gas fumes coming out of exaust

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: i bought a mazda 929,

sounds like a blown head gasket, time to tear that engine down and rebuild it

Posted on Aug 25, 2008

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co7196
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SOURCE: 1983 chevy 454 wont stay running

If it's an electrical problem it wont start at all. If it starts, runs or a few, it's a fuel issue.
A new pump and lines, what about any inline fuel filters and the fuel filter in the carb fuel inlet? If it has a quadrajet carb, the fuel inlet filter will play with you.Check your idle speed and the auto choke setting.Any questions on how to balance the carb and set the xhoke, Feel free to ask. _NNed

Posted on Aug 23, 2009

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SOURCE: Exaust manifolds getting red hot at engine

cat is cloged

Posted on Oct 26, 2009

  • 2926 Answers

SOURCE: 1994 buick roadmaster, 5.7; I

While performing this repair, the AC hoses were moved out of the way or disconnected. If moved, you may have caused a small leak that is not detectable. If disconnected, than there is no freon. In either case, get a a can of freon and add it to the system. The compressor will not come on or activate if there is no freon, but when you start adding a can of freon while the engine is running, the compressor will start to kick on and off rapidly until you add enough freon to fill the system, then the compressor will return to normal cycling. Keep in mind, you still have a leak.

Posted on Sep 24, 2010

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1 Answer

SHO. What will I have to remove to replace spark plugs and valve cover gaskets?


If it is a 6 cylinder engine you will probably need to remove the intake manifold to replace the rear valve cover gasket. If that's the case the intake manifold also has two hidden screws in the rear against the firewall as well as an EGR exhaust line that must be removed before the intake manifold will come off. I highly recommend you buy a haynes repair manual for your make/model and a flexible mirror-on-a-stick to use for dis-assembly. The spark plugs can be removed after the valve covers are removed (if the valve cover is leaking you will likely have oil pooled around the plugs anyway).

Dec 28, 2015 | 1998 Ford Taurus

1 Answer

Replacing a head gasket in a 1993 buick century


Before head gasket replacement have you checked these
Intake Manifold Gaskets May Leak Coolant or Engine Oil
engine or leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Leaking Water Pump May Cause Coolant Loss and Overheating
A coolant leak may develop from the . The may overheat as a result of the coolant loss. A leaking water pump should be replaced.
Headgasket replacement
step 1. undo negative battery cable or completely remove battery and tray.
step 2. remove air cleaner and associated piping if it is in the way to allow access to head, drain cooling system and remove upper radiator hose.
step 3. remove top portion of exhaust manifold.
step 4. remove intake manifold and fuel injection rail as necessary
step 5. remove spark wires and valve cover.
step 6. remove drive belts and top timing cover before removing timing belt find all alignment marks and paint to improve your visibility and aid in reassembly if no marks are present remove spark plug # 1 and rotate until piston is at tdc and check timing mark on crankshaft that it is on 0 then paint the belt and cams anything that has teeth that the timing belt rides on make a mark to aid in reassembly even if you are replacing t-belt at least you can compare to new belt and transfer marks, release tension on t-belt tensioner and remove t-belt.
step 7. remove head bolts start loosening at inside and work outwards reemove head bolts and pay attention to sizing and placement.
carefully check for anything that is still attached to head and if free tap head with rubber or dead blow hammer to free from block and lift straight up so as not to ruin or bend any of the alignment pegs.
step 8. remove head gasket material with non-scratching tools or scrapers or buff pads made for that job. making note of where it was blown.
step 9. decide if you should send head to machine shop to have mating surface made flat again and also to have valves and related parts inspected or replaced. usually about $300-$400
step 10. inspect block remove all gasket material look for pitting or scarring also use straight edge to determine if it is straight or if it needs to be resurfaced by a machine shop.
step 11. install new headgasket and check fit. If all is good reassemble in reverse order of removal and I always like to replace crank seal ,cam seal, water pump, t-belt and tensioner also thermostat, drivebelts, spark plugs, cap, rotor, wires, pcv valve, intake manifold ,exhaust manifold gaskets.
this is just a broad overview hope it helps you will have to get haynes manual or similar for head torque values and what not

Aug 05, 2014 | 1993 Buick Century

2 Answers

Can i incorrect ntake manifold replacement cause oil loss in an H3?


Yes it can leak,its possible.Its suggested to click the link below and follow the troubleshooting procedure:-----Oil pouring out from left front of engine? http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html Common Causes of Car Oil Leaks? http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html Troubleshoot Car Oil leak? http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html
---------Car oil leaks from valve cover gasket? http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html
---------This will help.Thanks.

Feb 08, 2012 | Hummer H3 Cars & Trucks

1 Answer

Oil leak from head gasket can it be replaced


For leaking head gasket it has to be replaced.For head gasket leaking and other troubleshooting,there are help links provided.Its suggested to click the link below and go through the troubleshooting procedure to confirm the issue :-----Leaking head gaskets? http://schematicsdiagram.blogspot.com/2011/12/leaking-head-gaskets.html
-----------Water in engine oil? http://schematicsdiagram.blogspot.com/2011/12/water-in-engine-oil.html
-----------How to replace head gasket on car? http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-head-gasket-on-1994.html-------------How to know what is faulty Cylinder head or Head gasket? http://schematicsdiagram.blogspot.com/2011/12/how-to-know-what-is-faulty-cylinder.html
-------------- Can I just replace Head Gasket on 1991 Buick Century? http://schematicsdiagram.blogspot.com/2011/12/can-i-just-replace-head-gasket-on-1991.html Location of Head Gasket ?

http://schematicsdiagram.blogspot.com/2011/12/location-of-head-gasket-on-1994-grand.html

------------------------
HOW TO REPLACE A HEAD GASKET

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-head-gasket.html

----------------
How to replace Exhaust Manifold?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-exhaust-manifold-on.html

-------------------
How to replace Intake Manifold?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-intake-manifold-on-acura.html

---------------
How to replace Cylinder Head ?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cylinder-head-on-acura.html

---------
Is it Easy to replace head gasket?

http://schematicsdiagram.blogspot.com/2011/12/is-it-easy-to-replace-head-gasket-on.html

------------
Should I only replace head gaskets or complete head gasket assembly? http://schematicsdiagram.blogspot.com/2011/12/should-i-only-replace-head-gaskets-or.html
-----------FOR oil leak issue check the following help links:---Common Causes of Car Oil Leaks? http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html --------Troubleshoot Car Oil leak? http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html
---------Car oil leak?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leak.html

---------
Car oil leaks from valve cover gasket? http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html
---------This will help.Thanks.

Jan 30, 2012 | 2006 Scion tC

2 Answers

Oil leak from head gasket


For leaking head gasket it has to be replaced.For head gasket leaking and other troubleshooting,there are help links provided.Its suggested to click the link below and go through the troubleshooting procedure to confirm the issue :-----Leaking head gaskets? http://schematicsdiagram.blogspot.com/2011/12/leaking-head-gaskets.html
-----------Water in engine oil? http://schematicsdiagram.blogspot.com/2011/12/water-in-engine-oil.html
-----------How to replace head gasket on car?http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-head-gasket-on-1994.html-------------How to know what is faulty Cylinder head or Head gasket?http://schematicsdiagram.blogspot.com/2011/12/how-to-know-what-is-faulty-cylinder.html
-------------- Can I just replace Head Gasket on 1991 Buick Century?http://schematicsdiagram.blogspot.com/2011/12/can-i-just-replace-head-gasket-on-1991.html Location of Head Gasket ?

http://schematicsdiagram.blogspot.com/2011/12/location-of-head-gasket-on-1994-grand.html

------------------------
HOW TO REPLACE A HEAD GASKET

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-head-gasket.html

----------------
How to replace Exhaust Manifold?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-exhaust-manifold-on.html

-------------------
How to replace Intake Manifold?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-intake-manifold-on-acura.html

---------------
How to replace Cylinder Head ?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cylinder-head-on-acura.html

---------
Is it Easy to replace head gasket?

http://schematicsdiagram.blogspot.com/2011/12/is-it-easy-to-replace-head-gasket-on.html

------------
Should I only replace head gaskets or complete head gasket assembly?http://schematicsdiagram.blogspot.com/2011/12/should-i-only-replace-head-gaskets-or.html
-----------FOR oil leak issue check the following help links:---Common Causes of Car Oil Leaks? http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html --------Troubleshoot Car Oil leak?http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html
---------Car oil leak?

http://schematicsdiagram.blogspot.com/2011/12/car-oil-leak.html

---------
Car oil leaks from valve cover gasket?http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html
---------This will help.Thanks.

Jan 30, 2012 | 2006 Scion tC

3 Answers

Water in oil


possible intake manifold gasket leaking into engine

May 13, 2010 | 1992 Ford Bronco

1 Answer

Intake manifold leaking wont hold coolant


Both of the engine that came in your vehicle have this issue. The upper and lower intake manifold gaskets, and the 3.8L valve cover gasket need to be replaced. DO YOURSELF A FAVOR, and if you do the work or have it done, have the Thermostat replaced at the same time. Book time is about 6 hours to do this repair plus parts.

Jan 23, 2010 | 1998 Buick LeSabre

1 Answer

Need to remove and replace the intake manifold gaskets on a 2000 Buick Regal GS, with 3.8 Ltr Supercharged engine. The engine is leaking coolant from below the intake manifold.


it is a great deal of work. The molded gaskets breakdown with time. You'll want to change the two 90 degree elbows as well - they are available from a dealer for a reasonable price. Also, the blower gasket is likely shrunk up and /or blown out. And you might as well replace the valve cover gaskets too as they leak oil as they breakdown with heat and time.

I did all of this on mine. Even as a professional, it took me a good 6 hours.

Sep 30, 2009 | 2000 Buick Regal

2 Answers

Step by step instructions on removing intake manifold on 1992 buick roadmaster limited


  1. On models equipped with airbag, disable airbag system as described under MAINTENANCE PROCEDURES/AIRBAG SYSTEM DISARMING .
  2. On all models, disconnect battery ground cable, drain cooling system and remove air cleaner.
  3. Disconnect accelerator, transmission and cruise control linkages, as equipped.
  4. Disconnect fuel line from carburetor or TBI unit and remove fuel line clips as needed, then remove carburetor or throttle body from intake manifold.
  5. Disconnect necessary vacuum hoses and electrical connectors, noting position for installation.
  6. Disconnect upper radiator and heater hoses from manifold.
  7. On Cadillac Brougham models, remove thermostat and housing.
  8. On all models, remove distributor.
  9. Remove ignition coil, AIR pump, cruise control servo and brackets, as needed.
  10. Remove alternator upper mounting bracket and EGR solenoids.
  11. Remove manifold retaining bolts and the manifold.
  12. Reverse procedure to install, noting the following:
    1. Ensure surfaces are clean and dry, then apply 3/16 bead of RTV sealer on each block ridge and apply suitable sealer around water outlets, install gaskets and secure gasket position by extending bead of sealer approximately 1/2 inch onto gasket ends.
    2. Install manifold and retaining bolts, ensuring areas between case ridges and manifold are completely sealed.
    3. Torque manifold bolts to specifications in sequence shown in Figs. 2 and 3.
    4. After installing carburetor or TBI unit, check to ensure no fuel leakage is present.
  1. Rearm airbag system as described under MAINTENANCE PROCEDURES/AIRBAG SYSTEM DISARMING

Jul 21, 2009 | 1992 Buick Roadmaster

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