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Unread 04-21-2014, 12:10 AM   #1
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Default Help!!! 1989 Cadillac Coupe Deville. Serious problems?

Hello all,
This is my first time on the forum. I am having an issue with my-actually my twin brothers-1989 coupe deville. First, the cars back story. It was purchased just weeks ago as his (but for this post I will just refer to it as my car for now) first vehicle. He was beyond excited to get it and has loved and cared for it since he first brought it home. The champagne colored car ith vinyl roof was owned by a 94 year old extremely wealthy lady who owned it all 25 years since it rolled off the showroom floor. It had only 76k miles on it, and NO sun damage WHATSOEVER having been garages it's entire life. New tires on it, good recent inspection, purchased from an honest guy who checked it over and worked with me to get me into the car, (the guy owned a citgo and a garage where it was bought, as he runs his own buying and selling cars business.) I paid $3150 for it, and the guy said it was all good. It is PRISTINEl with everything working but the passenger window switch. The car had all of the options that still worked including heather windshield and power pull down trunk. This car was someone's baby. Since i got it, it has been filled with only premium gas and had gas treatment put in. Let it both idle and drive through two tanks full of gas. Gave it good cleaning. I since put around 40 miles on it driving locally and very grandpa like. From the first few days where it sat in the driveway, some liquid was leaking from the exhaust pipe but went away when the weather got warmer. Sitting in it one day with a tape playing softly, I pressed on the radios power button and the whole car shorted. I was very concerned as every light on the car inside and out got very bright and blew dark. The tape ejected and I pulled out the key and restarted with no issue. Days after that we filled it up with gas and drove it around (just around the block to get the fuel going, we didn't have insurance or tags yet on it but didn't want to let it sit too long or idle forever.) a few days later my cousin came to look at the car to see it. As he applied the brake when e car was simply parked, with the engine on, the whole car shorted(?) and turned off. It turned back on with little effort. We did notice It seemed a bit tired turning on with this wierd sound, kind or like a mix between a biz and a hum when starting it. It starts first try though. Anyway, we got insurance and tags and drove it about 30 miles to the mall and back. My mom noticed it seemed hesitant or reluctant almost, don't really know how to describe it (abnormal?) when going into second gear. It did shift fine and did go in and drive well but that raised an eyebrow.Not wanting to waste the gas with its superb 7MPG avg, we drove it home and took my moms toyota back out. Feeling comfortable with the car, we began taking it to avoid putting miles on the Toyota. It was driven around the block to my aunts for Easter today. With extended family over, I wanted to show them my car. I took my aunt and uncle for a test drive in it (Meaning actually I, myself. Not my brother who's car it is as mentioned earlier. He was in the passenger seat.) I was turning from a very busy intersection and was halfway done with the turn, where if I went straight I would've been up the curb, maybe turned about 70 when the car just shut off. I mean it was F...KING TERRIFYING! The speedometer needle went from the 25mph mark (how fast i was actually going), up to the max, and down to zero. The radio shut off, the power steering shut off ONLY after locking up solid for a split second (SCARY AS HELL), the brake petal also locked up a bit and required some very extreme pressure to depress. The thing just died like that. Then after everything locked up and then went manual, like the steering and brakes, the dummy lights (only 3) came on, ("check oil," "no battery charge" and something else on the bottom right corner of the dummy lights.). After being unable to fully pull the car to the side, sticking half in the shoulder and half out, I turned on my hazards.my brother in the passenger seat reached over trying to take the key out but was unable to. I tried putting my foot on the brake and everything, it just wouldn't allow the key to be turned back to the off position nor be pulled out. Do note this was also because the car was stuck in gear as it wasn't shifting right away, only after a minute of sitting in drive gear could I shift into park. After waiting with the key out and dummy lights still on, we out the key back in. This time it not only didnt start, but didnt make any sound. Whatsoever. No "gRRrrrRRRrrrr" or click or anything. Just turned a bit but no sound. After about five minutes (probably only 2-3 but it felt like eternity), we put the key back in and it started up. Drove it straight home after that. Now, we think it has something to do with the incident with my cousing, having depressed the brake and the car shut off. I don't remember whether my foot was on the brake or not, but my brother thought it was. Or maybe just teetering where it allowed the brake lights to go on and short the electrics. Either way, not sure why the car keeps ?shorting? , turning off, disengaging electronics, and so forth. This event is what prompted this insanely long post. So what do you guys all think? He really likes this car and is in such Denile that it is screwing up and all. He keeps saying "it's only like 100$ no big deal probably just needs a reset or spark plug or something." So what do you think? What ballpark Does it sound likely to be in in terms of $$$? Over 1k, around 500$? Do you think it's "totalled" in a sense? Like, surpassing the 3k mark? I would think it would be cheap, if it were just one system affected, like maybe pressing the brake shorts the tail lights out and disables the brake system, or that the speedometer/sensors are affected when the car accelerates. You know, things relative to each system. But the WHOLE DAMN THING, from air vents to interior lights, radio, tranny, blinkers, engine/ignition, brakes, speedo, EVERYTHING, all in one shot? What do you guys think? Up on the lift or down in the scrapyard. Oh also forgot to mention, pulled the tyranny dipstick thingy and the fluid looked burnt brown-ish, so that may be the initial minor second gear issue I was saying. But I'm mainly focused on the electrical system issues and the shorts and shut offs that occur. WhT may cause it and do you thing it's serious and how much$$$? Sorry to bombard you all but we'd like to get some answers since we don't have the time to take it to a mechanic ASAP. We want to know all of those questions please. Thank you very much, and props to not getting bored halfway through the post,
Tim.

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Unread 04-21-2014, 10:51 AM   #2
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Can you add some line breaks please?
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He may have ruined his cylinder walls and compression wings.
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Yeah. Should hold up fine, long as you don't drive like a primate.

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Unread 04-21-2014, 10:54 AM   #3
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Dear god. I'm sure there's a few people here patient enough to comb through this terrifying wall of text and try to give you some answers, but it isn't me.
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Unread 04-21-2014, 11:35 AM   #4
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Quote:
Originally Posted by 89cpedeville View Post
Hello all,
This is my first time on the forum.

I am having an issue with my-actually my twin brothers-1989 coupe deville.

First, the cars back story. It was purchased just weeks ago as his (but for this post I will just refer to it as my car for now) first vehicle. He was beyond excited to get it and has loved and cared for it since he first brought it home.

The champagne colored car ith vinyl roof was owned by a 94 year old extremely wealthy lady who owned it all 25 years since it rolled off the showroom floor. It had only 76k miles on it, and NO sun damage WHATSOEVER having been garages it's entire life.

New tires on it, good recent inspection, purchased from an honest guy who checked it over and worked with me to get me into the car, (the guy owned a citgo and a garage where it was bought, as he runs his own buying and selling cars business.)

I paid $3150 for it, and the guy said it was all good. It is PRISTINEl with everything working but the passenger window switch. The car had all of the options that still worked including heather windshield and power pull down trunk. This car was someone's baby. Since i got it, it has been filled with only premium gas and had gas treatment put in. Let it both idle and drive through two tanks full of gas. Gave it good cleaning.

I since put around 40 miles on it driving locally and very grandpa like. From the first few days where it sat in the driveway, some liquid was leaking from the exhaust pipe but went away when the weather got warmer.

Sitting in it one day with a tape playing softly, I pressed on the radios power button and the whole car shorted. I was very concerned as every light on the car inside and out got very bright and blew dark. The tape ejected and I pulled out the key and restarted with no issue.

Days after that we filled it up with gas and drove it around (just around the block to get the fuel going, we didn't have insurance or tags yet on it but didn't want to let it sit too long or idle forever.) a few days later my cousin came to look at the car to see it. As he applied the brake when e car was simply parked, with the engine on, the whole car shorted(?) and turned off. It turned back on with little effort.

We did notice It seemed a bit tired turning on with this wierd sound, kind or like a mix between a biz and a hum when starting it. It starts first try though.

Anyway, we got insurance and tags and drove it about 30 miles to the mall and back. My mom noticed it seemed hesitant or reluctant almost, don't really know how to describe it (abnormal?) when going into second gear. It did shift fine and did go in and drive well but that raised an eyebrow.

Not wanting to waste the gas with its superb 7MPG avg, we drove it home and took my moms toyota back out. Feeling comfortable with the car, we began taking it to avoid putting miles on the Toyota. It was driven around the block to my aunts for Easter today.

With extended family over, I wanted to show them my car. I took my aunt and uncle for a test drive in it (Meaning actually I, myself. Not my brother who's car it is as mentioned earlier. He was in the passenger seat.) I was turning from a very busy intersection and was halfway done with the turn, where if I went straight I would've been up the curb, maybe turned about 70 when the car just shut off. I mean it was F...KING TERRIFYING! The speedometer needle went from the 25mph mark (how fast i was actually going), up to the max, and down to zero.

The radio shut off, the power steering shut off ONLY after locking up solid for a split second (SCARY AS HELL), the brake petal also locked up a bit and required some very extreme pressure to depress. The thing just died like that. Then after everything locked up and then went manual, like the steering and brakes, the dummy lights (only 3) came on, ("check oil," "no battery charge" and something else on the bottom right corner of the dummy lights.).

After being unable to fully pull the car to the side, sticking half in the shoulder and half out, I turned on my hazards.my brother in the passenger seat reached over trying to take the key out but was unable to. I tried putting my foot on the brake and everything, it just wouldn't allow the key to be turned back to the off position nor be pulled out.

Do note this was also because the car was stuck in gear as it wasn't shifting right away, only after a minute of sitting in drive gear could I shift into park. After waiting with the key out and dummy lights still on, we out the key back in.

This time it not only didnt start, but didnt make any sound. Whatsoever. No "gRRrrrRRRrrrr" or click or anything. Just turned a bit but no sound. After about five minutes (probably only 2-3 but it felt like eternity), we put the key back in and it started up. Drove it straight home after that. Now, we think it has something to do with the incident with my cousing, having depressed the brake and the car shut off.

I don't remember whether my foot was on the brake or not, but my brother thought it was. Or maybe just teetering where it allowed the brake lights to go on and short the electrics. Either way, not sure why the car keeps ?shorting? , turning off, disengaging electronics, and so forth.

This event is what prompted this insanely long post. So what do you guys all think? He really likes this car and is in such Denile that it is screwing up and all. He keeps saying "it's only like 100$ no big deal probably just needs a reset or spark plug or something."

So what do you think? What ballpark Does it sound likely to be in in terms of $$$? Over 1k, around 500$? Do you think it's "totalled" in a sense? Like, surpassing the 3k mark? I would think it would be cheap, if it were just one system affected, like maybe pressing the brake shorts the tail lights out and disables the brake system, or that the speedometer/sensors are affected when the car accelerates.

You know, things relative to each system. But the WHOLE DAMN THING, from air vents to interior lights, radio, tranny, blinkers, engine/ignition, brakes, speedo, EVERYTHING, all in one shot? What do you guys think? Up on the lift or down in the scrapyard. Oh also forgot to mention, pulled the tyranny dipstick thingy and the fluid looked burnt brown-ish, so that may be the initial minor second gear issue I was saying. But I'm mainly focused on the electrical system issues and the shorts and shut offs that occur.

WhT may cause it and do you thing it's serious and how much$$$? Sorry to bombard you all but we'd like to get some answers since we don't have the time to take it to a mechanic ASAP. We want to know all of those questions please. Thank you very much, and props to not getting bored halfway through the post,
Tim.
Added breaks in the post. Had to read the post, while adding breaks. I didn't touch spelling, or grammar, for that matter.



Go over every wire with a fine-toothed comb. If it carries electrons, inspect it. It sounds like the insulation came off and is causing those funky issues.
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