Question about 1992 Buick Roadmaster

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

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It's a simple TBI 350 Chevy engine. Google free repair manuals for Chevy and GMC trucks from 1987-1995. Because they're easier to find than Caprice and Roadmaster manuals.

Posted on Jul 21, 2009

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  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

Posted on Jul 21, 2009

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1 Answer

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1995 Buick Roadmaster 5.7L SFI OHV 8cyl

The Coolant Temperature Sensor is located: Under hood, center, upper engine area, passenger side of water outlet, mounted in intake manifold

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Does my 92 buick roadmaster have a short block or long block?


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Jan 13, 2011 | 1992 Buick Roadmaster

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Looking for cylinder head torque specs and intake manifold torque specs


on the 2.5 4 cylinder

step 1 18 ft lbs.

step 2 26 ft lbs. except bolt #9 re tighten it to 18 ft. lbs.

step 3 all bolts an additional 90 degrees.

intake manifold bolts 65 ft lbs.

on the 3.3L V6

step 1 35 ft lbs.

step 2 tighten all bolts an additional 130 degrees

step 3 tighten center 4 bolts an additional 30 degrees

intake manifold bolts 88 in. lbs.


Jan 13, 2011 | 1992 Buick Century

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Where is the air filter located on a 1992 buick roadmaster?


The air filter is a long rectangular shape and is located is the front section of the air intake cover. Dead center and right on top of your engine. It is square rather than round like most but still sits right on top of your carburator/fuel injector. 2 wing nuts release it.

Dec 30, 2010 | 1992 Buick Roadmaster

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I have a 1992 Buick Roadmaster that stalls sometimes when coming to a stop or making slow turns(turning into a parking space, for example). I've changed the egr,vacuum solenid, distributor, cap and rotor...


Have you cleaned the intake manifold, you can get this at an auto supply store, sometimes deposits build up and block off air causing stalling when idling. just use according to instructions. If that doesn't help check fuel filter, fuel pump pressure, and all ground connections from battery and motor to body ground strap. These can become coeeoded underneath and cause all kinds of problems

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1992 Buick Roadmaster Limited- air conditioner blows hot air, does not need feon and compressor appears opperational. Any ideas


Make sure the large line going in the firewall is cold,if so,the problem is on the inside ,check the temp door,it is most likely not opening for cold temp.

Jun 04, 2010 | 1992 Buick Roadmaster

1 Answer

Change starter 192 buick roadmaster


dissconect battery, remove flywheel cover,remove 2 bolts holding starter, now drop starter and remove wiring and take out,

Sep 30, 2009 | 1992 Buick Roadmaster

2 Answers

Replace heater core on 1992 buick roadmaster


It appears I was incorrect about removing the dash assembly, here are the instructions from a Buick owners club.

Under the passenger dash is an access panel that will allow you to remove the heater core, it really isn't that hard, there are lots of little dash screws and panel screws to remove before you get where you need to be but at least it is roomy. The AC evaporator is located by the heater core. I will give you a tip. I changed mine last year and the heater core that I ordered for my 92 Roadmaster was not correct, when I took my old one out and matched it in a book at the local part store, the heater core for my vehicle was listed as a 96 Caprice???? The car has been in my family since it was purchased new and the heater core had never been changed!!!! Explain that one!Oh yeah, one more tip, if your heater core is leaking, this access panel lowers towards you, if there is nasty sweet smelling water in there it will pour all over you, be careful! Caprice parts are the same as a Roadmaster,so if you ever need anything just look up caprices

Dec 16, 2008 | Buick Roadmaster Cars & Trucks

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