Question about 1990 Buick Century

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'90 Buick Century dies often, will start again after sits 2 hrs

My 1990 Buick Century started dying every so often but would restart again right away. Some days it wouldn't die at all, other days it dies every minute or so. Recently it died on my way to work and I had to leave it in a parking lot, when I went back 4 hours later it started right up. Then on my way back it died again and wouldn't start for another 3 hours. Then today it did it again...had it towed to a shop and then it started again! They don't seem to have an answer for me as to the problem...anyone have any suggestions?

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  • angelamarieh Jul 27, 2009

    I had the fuel pump and catalytic converter changed...still dying...any other ideas? Anyone??

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The fuel pump is starting to go. The fuel pump sending unit which is part of the fuel pump is over heating in time and shutting down. This is causing the fuel pump to shut down.
I would replace the fuel pump and filter.

Good luck

Posted on Jul 18, 2009

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Sounds like the electronic ignition.i went to great mechanic/friend who knew what the problem was instantly.he went on to tell me that the buick century is common to need electronic ignition under the hood got the part mine was like a plate with 3 condensers and grease 1990 buick century also many mechanics cant figure out that it is electronic ignition i got mine at scrapbusters for 20bucks but new there about 80bucks anyway almost sure that this is your problem hope its a help

Posted on Mar 03, 2013

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Check the fuel pressure with the engine cold, it does not have to be running to do this, just key on. Then check it when it fails, if ypou have the same pressure than the fuel pump is not a problem. What about other fluid levels are they okay? Overheating can cause these symptoms as well as low oil pressure. Replacment of the fuel pump is a labor intensive task but not difficult with a bit of planning along with a floor jack and jack stands. Are there any codes being set on the ECM?
Check the error codes, if any and determine what and why they are set. Good Luck with it. Just making certain all the connectors are tight and in good condition also helps.

Posted on Aug 31, 2009

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I don't have a solution, but do have the same problem. And just so you know, we are NOT the only ones. It seems to be a pretty common occurance amoung 1990 Buick Century owners. The other thing we all seem to have in common is that none of the suggestions or solutions are working yet. Somebody please help us solve this mystery.

Posted on Aug 02, 2009

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loose transmission connection. hope this helps

Posted on Aug 24, 2009

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SOURCE: my dash light went out on my 1990 buick century.

Find your fuse box, read the cover and find the cigarette lighter and match the drawings with the arrangement of the fuses, when you find it, pull it out and check if blown out or open circuit, then replace it with a the same value of amp. ok

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SOURCE: what kind of battery for a buick century 1990...

75 series

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SOURCE: looking for pvc valve on3.3/6cly 1990 buick

The PVC Valve is located on the valve cover of your engine.

Posted on Jun 16, 2010

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