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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #1
I am considering buying a '91 Seville that is for sale locally. I haven't gone to see the car in person yet, but it sounds like a decent deal. The car looks to be in good condition on the outside and the seller says the interior is free of rips and tears. The seller also says the car runs great and there are no leaks from the motor or transmission. The A/C even blows cold, I'm told. My concern is that the car has almost 230K miles on it. What has been the lifespan of the 4.9L engine and transmission? Does this sound like a good buy at $1000? Thanks!
 

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1995 FWB 128,*** miles
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Leave mileage alone, it is an old car. Despite a 4.9 can last virtually forever, the tranny and a lot of conventional stuff will require quite a bit time and money.
 

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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #3
So then, for the car to be in good running condition at 230K miles, would it be safe to assume that this car likely received proper maintenance like tranny and suspension repairs?
 

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1995 FWB 128,*** miles
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So then, for the car to be in good running condition at 230K miles, would it be safe to assume that this car likely received proper maintenance like tranny and suspension repairs?
These are the questions I would ask the seller or check wherever possible myself. Waterpump, fuel pump, EGR system, distributor, brake lines , etc. all should be checked out.
 

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2010 CTS (Elvis) 1964 Impala (Betty) 1991 Miata (Dolly)
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These are the questions I would ask the seller or check wherever possible myself. Waterpump, fuel pump, EGR system, distributor, brake lines , etc. all should be checked out.
Good advice.

My '91 DeVille 4.9 has 233,000 miles on it, and it runs beautifully. I had the transmission rebuilt at 214,000 miles and have done some other repairs, but all the accessories work and the A/C blows cold. I drove it nearly 4,000 miles from Oregon to Des Moines for the club meet last month and had no problems. I bought the car for $999 with 200,000 miles on it two years ago, and I have no idea what the service history was before.

If the car checks out mechanically and drives well (and you like it), I say go ahead.
 

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'87 SDV
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As Huf said, the 4.9's range is virtually limitless. It's just a great engine. But as gdwriter knows, the weak spot in these cars is the trans. If this one hasn't been rebuilt, it will probably need it before long. Check the trouble codes and watch for the E39 (VCC engagement) code. That's the first sign of a failing trans. If there are no codes, drive the car at varying speeds for 30 minutes and check again.

Check the oil for milkshake color or lumpy consistency (head gaskets) or oil slicks in the radiator (intake or head gaskets). If the coolant is the color of fresh brewed coffee, that's very good. It means the system sealer has been used.

Other big $$$ repairs that come to mind would be A/C, struts all around, ABS. But that's really about it. These cars were over engineered in their day, and hold up very well.
 

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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #7
Great! Thanks for the tips. I plan to try to check the car out either this evening or tomorrow. I'll keep you posted.
 

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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #8
Okay...that car was a little too tired for my tastes. Not to mention that when I try to sell a car, the LEAST I do is wash the thing. This car hadn't seen soap and water in a very long time. The interior was dirty as well and all four of the Bose amps were dead. The seller also said that he didn't know that the tranny had ever been addressed. On the bright side, I found a 1991 White Diamond STS that I am going to pick up tomorrow.
 

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'87 SDV
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Cool! Best of luck with the new ride. That white diamond is a very sexy color.
Post some pics when you get it.
 

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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #10
Picked up the car today. It was a little more than I wanted to spend, but I wanted the car. It needs struts (Service CCR System) and the A/C needs to be recharged. The front seats are worn (drivers worse than passengers) abd it needs an alignment (could be related to the bad struts). I'll get some pics up later (wife is out of town with the camera).
 

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1995 FWB 128,*** miles
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Picked up the car today. It was a little more than I wanted to spend, but I wanted the car. It needs struts (Service CCR System) and the A/C needs to be recharged. The front seats are worn (drivers worse than passengers) abd it needs an alignment (could be related to the bad struts). I'll get some pics up later (wife is out of town with the camera).
You can put new passive struts, or leave the old ones. Servise CCR means they were turned to passive mode. You can get rid of the message if you want to.
 

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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #12
It feels and sounds a little "clunky" to me. Could be loose bolts I suppose. I haven't had time to crawl over her with a fine tooth comb yet. Did you ever replace the Bose Gold in your car? Only one of the speaker/amp units is working in mine. What is the procedure to disable the message?
 

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1995 FWB 128,*** miles
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It feels and sounds a little "clunky" to me. Could be loose bolts I suppose. I haven't had time to crawl over her with a fine tooth comb yet. Did you ever replace the Bose Gold in your car? Only one of the speaker/amp units is working in mine. What is the procedure to disable the message?
All my speakers died one after another a few years ago. Replacing BOSE is a headache (at least for me), so I left them alone.

Sway bar bushings, ball joints etc. should be checked.
 

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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #14
Yeah, I rarely listen to the radio anyway, so I'll not worry about it for now. I'll get the car up on jackstands this week and check the suspension out. The PO was going on and on about how the motor in the car was a 70K mile unit from a '94 and how the '91 didn't have the 4.9L engine available. I didn't say anything :bigroll:
 

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1992 Town Car Cartier & 2014 Accord LX MTX
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So you skipped the 230k mile '91 Seville and bought a white diamond '91 STS instead? Lucky bastard, I'm so jealous!
 

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Discussion Starter #16
Jeez...the stabilizer bar bushings are totally cracked and falling apart in the rear. I guess I will plan to change the fron and rear bushings. Bought a FSM on eBay and am awaiting it's arrival before I start wrenching on her.
 

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2005 White Diamond STS N* 1SF RWD ACC/HUD
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Discussion Starter #17 (Edited)
So you skipped the 230k mile '91 Seville and bought a white diamond '91 STS instead? Lucky bastard, I'm so jealous!

I did! There were also TWO pretty sweet 1991 Eldorado ETC's I was considering...both bright red, one with a roof and one without. I decided I wanted the four door car.
 

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Discussion Starter #19
Thanks, Ed! I don't possess ANY soldering skills or tools, but I do have a good friend who does. Maybe he can get the amps going again. Did you fix your amps using this method?
 

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93 & 88 Allante, 88 Eldorado
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Thanks, Ed! I don't possess ANY soldering skills or tools, but I do have a good friend who does. Maybe he can get the amps going again. Did you fix your amps using this method?
No. I replaced my speakers with MB Quart speakers. They're expensive but in my opinion sound better than Bose.
 
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