20 Most Recent 1993 Buick Riviera - Page 2 Questions & Answers

Hi, Starter has a bad connection or is bad all togeather. Check and/or replace.

its a fuel issue ! check fuel filter for clogging up with dirt.and be sure fuel pump is working properly.

Linkage may be worn out if you can't reliably get it into park. I would take it to a certified transmission shop or tech and see what can be done about it.

We had a similar problem on a 1980 Chevrolet Suburban that had a worn out linkage inside of the transmission, and it would not go into park very reliably. It had about 100k mi. on it at the time.

low compression?

Do your head lights come on? If not check your battery connections. If they do then go to the starter and check all connections there. Let me know how you do with this and let me know if thia=s helped or if you need further assistance. Thanks

You need to send the cluster to model electronics and have it repaired.

is the security light on on your dash .check for theft code ,if security light flashes your problem is your theft system .i've repaired alot of these .if you have questions call me at 270-556-7357 or [email protected]

Hi, this vehicle does have antilock, with aluminum hardware, and you could flush your brake fluid, but I can not see, even with everything replaced, paying $900, unless they were to replace all the lines, master cylinder, and perhaps other things. I feel you should get a 2nd opinion, as this sounds too high to me.Good luck...Coop

The radio is usually tied in with the anti-thief. If it is asking for a code then you probable have to remove the radio far enough to gei the serial number off it. Call a dealership with the radio serial number and then can give you the code. If it is not asking for a code then chances are it is an electrical problem with the radio maybe a fuse.

below fron of console

well this is a first but possible i suppose ?? the transponder has read the wrong chip and now it will not release the immobilisor ,so i think it may be a dealer job

go to auto zone and you can buy a haynes book for your car with the codes in the book, or buy a code scanner book.

Hi,

Is it easy to replace an EGR Valve? When replacing your EGR valve, we also recommend replacing the EGR Valve Gasket. The EGR Valve attaches to your engine typically by 2 or 3 bolts, usually 12mm. Once you undo these bolts, the EGR valve simply comes off the intake manifold. Make sure you scrape off the gasket, so when you put the EGR Valve back on, you won't be double gasketing the valve, causing it to leak. Many of our customers buy the EGR valve from us, and then take it to the shop or their dealer to install, which saves them money by purchasing the part from us. However, if you decide on doing it yourself, the process is really quite simple. We recommend finding an owners manual to help you with the process.

Sometimes this part is also known as the Kombi-Valve or Secondary Air Injection Valve.

Thanks for contacting Fixya

Put fuel in it,then check the fuel pressure with a gauge. The tank unit maybe giving a false reading.

Chances are your distributor cap, it may have carbon buildup ad is acting like a jumper wire to other spark plugs or it may have a very fine crack in it with carbon buildup shorting two plugs together. It's best to have it replaced, they don't cost that much and it's easy.

Check your gas filter, chances are it's clogged and needs to be replaced.

I have a 1993 Buick LeSabre, and I have had a lot of wiring problems as well. Get this, I have replace the ECM computer, the prom chip, the climate control unit itself, and much more. However, non of these solved the problem you are having with hot and cold air settings. In my case the air would come on and surge and then die out completely. As it turned out, the switches on the dash were not to blame, but some people complain about those units going out. In my case I had to trace the wiring harness from the back of the control unit to the firewall under the hood. And there I found the answer. One of the connectors inside a clip had burnt up from overheating. I went to a junk yard and got a replacement clip and cut the old one out and carefully cut one wire at a time to make sure all the colors matched up on the splices....sure enough, I got the air to blow again without the hesitation.

In a similar but worse problem, I had a wiring clip unit go at the transmission plug in.....that caused it not to shift properly.
Splicing in a new complet wiring clip there help the cure the electronic shifting problem I was having.

So, my suggestion is to check all your wiring clips on the firewall side of the wiring harness that goes to the heater blower motor 1st, before you buy a whole new climate control unit. If the look fine, try a little electronic connection spray cleaner and clip them back together. Just make sure you understand how the clips unclip or you can break them. Most have a tab you lift up and then you can pull them apart. While others are more difficult in that they have a green pull tab which has to be pulled up to release the clip so you can pull it apart....good luck and I hope it helps

I have a 1993 Buick LeSabre, and I have had a lot of wiring problems as well. Get this, I have replace the ECM computer, the prom chip, the climate control unit itself, and much more. However, non of these solved the problem you are having with hot and cold air settings. In my case the air would come on and surge and then die out completely. As it turned out, the switches on the dash were not to blame, but some people complain about those units going out. In my case I had to trace the wiring harness from the back of the control unit to the firewall under the hood. And there I found the answer. One of the connectors inside a clip had burnt up from overheating. I went to a junk yard and got a replacement clip and cut the old one out and carefully cut one wire at a time to make sure all the colors matched up on the splices....sure enough, I got the air to blow again without the hesitation.

In a similar but worse problem, I had a wiring clip unit go at the transmission plug in.....that caused it not to shift properly.
Splicing in a new complet wiring clip there help the cure the electronic shifting problem I was having.

So, my suggestion is to check all your wiring clips on the firewall side of the wiring harness that goes to the heater blower motor 1st, before you buy a whole new climate control unit. If the look fine, try a little electronic connection spray cleaner and clip them back together. Just make sure you understand how the clips unclip or you can break them. Most have a tab you lift up and then you can pull them apart. While others are more difficult in that they have a green pull tab which has to be pulled up to release the clip so you can pull it apart....good luck and I hope it helps