Question about 1988 Oldsmobile Cutlass Supreme

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Removal of dash board

I want to replace the speakers under the dash but i can not get the dash to come out. i have all of the bolts removed from the front of the dash. is there any that i need to remove from the back, and if so where are they located and how do i get to them.

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Yes..5 across the back ....dash has threaded studs ..remove nuts (no fun getting to them)...going from memory way back..hope this helps :)

Posted on Oct 07, 2008


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SOURCE: removing dash board from 1969 chevelle

you will find bolts in the defrost air vents and under any speaker covers. also in the glove box. make things easy and remove the windshield first. can be done with the windshield in place but much harder.

Posted on Dec 04, 2008

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Dash board speedometer, rpm gauge and all other instruments turn off. If I beat on the dash sometimes it all turns back on, but mostly not! Also when instrument panel turns off, door locks won't...

Sounds like the instrument cluster main wiring harness pins on the instrument cluster circuit board. How are you with a soldering gun? Just re-flow the solder on the 13 pins of the main wiring connector on the instrument cluster circuit board, and you should be fine. To get there, you need to remove:
- the lower dash panel under the steering wheel (5 screws),
- instrument bezel cover around the steering column (2 screws),
- instrument cluster cover (3 screws to my recollection),
- and then instrument cluster (4 screws)

If the problem returns or persists, then consider re-flowing the solder on the #331 resistor on the body control module circuit board - there is only one of these on the circuit board. To get the bcm out, remove:
- lower dash panel under steering column (5 screws)
- metal kick plate - 10 bolts and 1 screw (although not necessary, you can get more room by removing the lower metal dash bracket as well - 5 bolts)
- three 10mm bolts holding the bcm in place
- 2 wiring connectors on the bottom of the bcm
- 4 wiring connectors on the front of the bcm - You need to back off the connectors with a nut driver - they were either 11mm or 12 mm

- remove the metal bcm cover - 3 small bolts
- remove the circuit board - 4 screws
- use a magnifying glass to find the #331 resistor
You're probably best off replacing this resistor while you have everything accessible. (this is apparently the standard re-build fix for these bcm's) I didn't have a suitable replacement, so I just re-melted the solder. After re-installing everything, all my previous dash board gremlins disappeared.

Give yourself 2-3 hours (well maybe 4) for all this.

Sep 18, 2011 | 1997 Dodge Caravan

1 Answer

1995 gmc sonoma heater core removal, replacement. i need help removing the DASH.

About the heater core, in the manuel I bought at Auto zone, it gives all the steps and bolts necessary to unloose. The dash will swing out at the bottom, don't forget to remove the bolts under the speaker covers.
R/ Randy

Apr 14, 2011 | 1995 GMC Sonoma

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How to remove and replace the blower motor on a 1996 GMC Sierra Pickup.

If you look under pasenger side dash at floor board you will see blower housing. unbolt it and you may have to remove one dash bolt at bottom pry dash out a little and remove motor

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Heater coil replacement

I just did mine last weekend and my my its a job I pulled the seats out to make it easier and if it has ac that will have to be discharged also. well start by removing your center console2_bing.gif then your radio then take off your dash speaker covers off and your defroster covers off you will see a bunch of bolts that hold on your dash under all them covers so go ahead and remove all the bolts then move down under the dash and there is a bolt on both corners of the dash that goes into the lower panel remove them I also removed the bolts the hold the steering wheel up so it can lower down alittle to give you more room then ontop of your gauge cluster you will see two screws that holds the gauge cover on remove them and in the cover you also have headlight switch and hazzered and rear defroster make sure you unplug the harnesses to them then you will have to start unhooking all the other plugs and wiring that plugs into things on dash then get the dash out oh the way and go under hood and remove heater2_bing.gif core hoses and you will need a specal tool to remove ac line then you will see one bolt next to the heater core hoses so go ahead and remove that then back to inside you will see the brackets that hold on heater Assembly onto the car2_bing.gif and go ahead and remove them and pull whole assembly out and you will see the heater core cover its held on with 4 screws so remove them and finally remove heater core and get some sealant to put around the new heater core this is a lot of work it took me about 12 hours to complete and get you a bucket because their is alot of nuts, bolts, clips so good luck

Jan 16, 2010 | 1988 Ford Mustang

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Land Rover Discovery I dashboard replacement.

There is a little more to it than that, but not a tough job if you have patience. You will need to remove both 'doors' on the dash-one glovebox, one fuse access panel. on US models, you will need to remove the pass side airbag as well, then 2 bolts that hold a set of relays under the airbag, then 5 bolts that hold a support bracket (also under the pass side airbag-behind glovebox.

Then under the dash at teh outside near the doors, remove 2 sets of 10mm bolts. after than remove 2 sets of 10mm bolts near where the bottom of the dash touches the tranny tunnel. obviously all the center console needs to be removed, and the center panel of the dash, as there are several sets of screws that hold that to the back of the dash.

be patient, take lots of photos of how it goes together, and where the wiring is(was), and this is pretty easy.


Oct 20, 2009 | 1996 Land Rover Discovery

2 Answers

1997 Town Car - How do you remove the complete dash board panel?

There are 3 small bolts across the top where the front defrost grill is. 2 large bolts directly under the headlight switch and another big bolt lower right hand corner of the glovebox area.

Feb 09, 2009 | 1997 Lincoln Town Car

1 Answer

Removing dash board from 1969 chevelle

you will find bolts in the defrost air vents and under any speaker covers. also in the glove box. make things easy and remove the windshield first. can be done with the windshield in place but much harder.

Dec 04, 2008 | Chevrolet Chevy Cars & Trucks

2 Answers

Removing front and back speakers in 1991 Grand Am....

There is a lot involved in replacing these speakers. You should also know that the original factory speakers are 10 ohm speakers. This means that if you replace them with new speakers (most of which are 4 ohm) you run the risk of damaging the stereo, the speakers, or both. This can also cause a potential fire hazard in your car. If you want new speakers, you really should look at installing a new stereo as well.

To get to the back speakers, you will need to remove 2 bolts located under the front edge of the rear seat (bottom). After you remove the bottom, you will need to remove the rear seat (back). This involves removing the bolts that hold down the rear seat belts, which is a large sized torx bit (T-45, T-47, or T-50... Don't remember which). After removing these, lift straight up on the seat back to remove. Now remove the deck brake light housing, and the bracket that holds it. Now the deck cover can be removed. Be careful not to bend it too much getting it out from under the side trim on both sides.

For the front speakers, you must disassemble a good portion of the dash. Remove the screw holding the light switch and the wiper switch housings. This screw is underneath each housing. Once removed, there are dash mounting screws behind them. These screws (and many of the other dash screws) are a smaller torx-bit (T-10 or T-15, don't remember which). Sometimes they use a 7mm bolt. There is a cover panel just above the glove box. This panel is held on with 2 screws located in the glove box. After removing this panel, you will find 2 or 3 bolts holding on the dash. Last but not least, you will find 2 bolts inside each of the defroster vent grilles. These grilles just snap out for easier access to the bolts.

1991 Pontiac Grand Am Car Radio Stereo Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4" Round
Car Audio Front Speakers Location: In Dash
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: 6" x 9" Oval
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Nov 30, 2008 | 1991 Pontiac Grand Am

2 Answers

Help me plz

Please use this link and follow the instructions:

Good luck....

Sep 10, 2008 | 1996 Pontiac Grand Am

3 Answers

Remove Dash On 1988 Camaro IROC

You do not have to remove any part of the dash at all! All you have to do is use a socket wrench from the front of the box with an extension over the top of the box. There is even a dip in the box at this point that may have been designed to make it more accessable. I have a 1988 Camaro and removed this impossible to reach 5th bolt by using a 9/32 socket and an extension or two to get the right lengths and a universal joint for easy manouvering. My son helped by holding the socket on the bolt while I did the unscrewing. It helps to have a good variety of socket wrench extensions and a universal joint and a skinny arm to get behind the box. The fifth bolt is about 3" in from the upper right bolt. Same size bolt as the other 4.

Jun 20, 2008 | 1988 Chevrolet Camaro

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