Question about 1989 Buick Reatta

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Wont Start Recently I am driving my 89 reatta and the check engin light comes on along with a decrease in engin performace/power. I would say about 45 percent. I did change out 5 spark plugs and wires does anyone know what would cause this? Then today it just died when i got to my destination and wouldn't start crank over nothing although I did have eletrical power lights all that. What the hell is the deal with this thing? Thanks

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  • leadguy Oct 13, 2008

    I just got an 89 and I have this problem as well. However, I also noticed that the oil pressure gauge was spiking up very high. So I looked up what could cause hi oil pressure and I am focusing on the oil pressure relief valve. I don't know where it is yet, but I'll find it (no repair manual yet).

    It will run fine while driving it around the block, but then if I increase the rpm (go over 40) I get an engine electrical alert on the screen (I will add the exact warning later) and the engine starts running rough and when I stop (after it begins running roughly) it sometimes shuts down.

    I replace the Mass Airflow (with a used one) because that it what the guy I got it from said was wrong with it.

  • creepyj Jan 16, 2009

    My coil pack keeps burning up,every mechanic that i've been too,has sucked my money up with no results. Something is shorting out prior too the coil pack.I have a 1989 Buick Reatta, 3.8l v6. I also have a computer control problem?

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I've been having an issue with my Reatta not starting too, and believe it to be a fuel or fuel mix issue. I replaced the fuel pump last weekend thinking it might have improved things, but it didn't. When I go to start it and turn the key to ignition, it just cranks. When I turn the key to 'on' position and let it sit for 5-10 seconds before cranking it will sometimes start - so I think it is an issue with feeding the engine fuel. This will be my project for the weekend - seeing if it is a fuel regulator issue or something else. I found some info on the buick reatta web sites that might help me determine the codes and hopefully determine the issue. Oh yea, I also replaced the oxygen sensor too thinking that might be causing part of the issue (but you can't keep replacing parts to find the issue to expensive!). I'll try to follow up with this site if I find the issue.
Kevin / South Carolina

Posted on Aug 27, 2008

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