'91 Polo Green

Thank you Barney, I appreciate your help! Problem turned out to be the Main switch connector.

Recently both windows just stopped working. I was instructed that what I was looking for was a relay, or breaker, that is buried somewhere under console. He said that I could find an illustration/location of the relay center in the manual (Which I have) in section 201-12, figure "D", but "My" manual only shows figures: a, b & c - not "D" & no pic of relay center in 201-12. I am looking at page 8A-201-12 - ANY help would be appreciated. I don't know what the parts look like - so therefore no clue. Any help will be appreciated!

Re: Barney, Thanks! All of the buttons seem to work fine. I recently replaced the hvac controls with an NOS unit that came sealed in the box, no problems since then. (My dash fan had been staying on and running the battery down)

I sincerely appreciate your knowledge and help when I need it. Now Jim, when you say: "Something in there"; What might that something be? Is it like a cap on the circuit board, or an failing/overheated diode -> ? I don't think I have seen one taken apart but it must be "Something simple" - It does flash the mode momentarily, just won't remain on. Does one of you have ipc interior pics to share, or perhaps pcb schematics or pics? Thanks again guys!

I am having a problem that I haven't encountered before. When I depress the Off and Temp Up buttons, and Hold to access the diagnostic mode - the ipc flashes the diagnostic mode for a second but won't stay in that mode to show read-out. Maybe some of you have experienced this and are aware of a solution. Any help would be appreciated! Thanks, JW

Hey guys, I found the source of the short after Ronnie's test procedure. It was the HVAC Control unit. As soon as I disconnected it the Amps dropped down. I have replaced it now and all is well. Thanks for your help once again, Jerome - May the path to your door always be downhill, and may ye be an half an hour in heaven afore the devil knows your gone!

Ps. All the major parts houses show that the larger 140amp alternators fit the Reatta's.

Thanks for your response Dship, I couldn't find anything either. My best guess is that some major re-manufacturer assumed that all buick's from (Approx) 90-94 have the same 140amp alternator. Rockauto shows that the below units fit the '91's. But they couldn't because of the intake configuration. (Not enough room for the bigger alternators) I thought maybe I could upgrade to the larger amperage & ordered the Pure Energy # 7984601 because Rockauto listed it as fitting. Their mistake cost me money and considerable time. When i wrote to Rockauto to point out the mistake, they simple wrote back to tell me that I' had made the mistake. Here are their incorrect listings: PURE ENERGY 7984601 {Click Info Button for Alternate/OEM Part Numbers} Remanufactured Info Second Production, w/ 140 amp alt. REMY 20582 {Click Info Button for Alternate/OEM Part Numbers} Premium Remanufactured Info w/ 1:00 Alt Plug; 140 Amps ACDELCO 3342391 {#19135949} Gold; Remanufactured; 140 Amp (Instant $7 Manufacturer Rebate on ACDelco Info Second Production, w/ 140 amp alt. Does someone know if other Buick models, from those (Approx) years show "Second Production" differences? Also might someone have an idea why with a (New) battery & alternator, the system still goes completely dead after just 8-15min at idle? I have checked all the grounds and every other test I have come across to try and figure out the issue. My conclusion is that the 124amp alternator is just to small to run all the taillights, fog lights at the same time at idle - I'm sure one of you guys can comment on this - Thanks in advance!

Can someone enlighten me on the difference in the alternator mount(s) for 1991 models. I recently bought a 140amp, to replace my 124amp but it is way to large. I cannot find anything on "First" or "Second" production differences in application (Mounts). I did however see a blanket statement previous to that order that stated that "All '91's have 140amp alternators". Apparently that wasn't true!

Thank you Dave, I appreciate it. Btw, do you happen to know of an available wooden Riviera steering wheel like yours?

Where, oh where, might the link, part numbers, or ANY pertinent info be on the Subframe Upgrade mounts/bushing/cushions on RockAuto for $16.70, as referred to in this post ?

Also I can't believe that nobody wants to buy one of those steering wheels and trade it for my whole running 79k mile, Blk over Maroon parts car. I mean, i see those Teves units alone selling in the $500 range. And did I mention that the car runs beautifully, and the overdrive even works? Oh well, I suppose it's more of a geography issue. But anyway . . . hope everyone is having a cool summer, I haven't been outside during the day in two weeks!

I for one think they look very smart Dave. I as well, have changed out my interior trim to the Riviera Burl Wood, and think it is a vast improvement over the faux carbon fiber looking original plastics. I also traded out my shift knob (Tan) for a black one. Looks much better than the tan one over the black console shift plate. IMHumbleO As a side note, I agree with your (Ronnie's) comment about negativity serving no purpose here, and quickly blocked that "Fan". If i wanted negativity, i would simply ask my girlfriend about what I'm wearing for the day! I am beginning to think she never liked pointy lizard cowboy boots!

Yes, I saw those pics a few months ago. Love the natural wood with the beechwood leather. At this point, my budget won't allow - but would probably trade my parts car for one of them!

If anyone is interested - there are two T-Type wood Riviera Steering wheels on ebay right now for $250ea. https://www.ebay.com/itm/Buick-Riviera-Steering-Wheel/223614544862?hash=item3410772bde:g:zMcAAOSwlGFdSkCA