Question about 1998 Buick Century

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I have a 98 Buick Century with 145k miles. The Service Engine Soon light came on. I took it to Pep Boys for a free code check. Diagnostic codes are: P102A and P1870

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Sounds like the valve body in the transmission needs to be replaced.

Posted on Apr 02, 2011


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Buick century service engine soon light

Theres somethin wrong...scan it at a partstore for codes. Dont rush into buying a part if car stil runs. Get mor info. It cud b just a vacuumleak or computr needs reboot by unhookn batt

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How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.

Disconnect the negative battery cable for 30 minutes. Reconnect after and the code will clear. However if the problem persists, the code will come back with in 20 miles or 30 minutes.

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Oct 16, 2017 | 2002 Buick Century

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The "Service Engine Soon" light just came on

Run in to any of the big autoparts stores like Autozone, or Pep Boys and they will scan it free for you, and advise from there what code you are getting. If fix is not obvious from that, get back to us with that code(s) and we will gladly advise you further. Better and much cheaper this way, than just guessing.

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Routine maintenance for 1999 Buick Century

have car scanned to identify the problem code as long as the light is on. go to any auto parts store and they will scan it for free.the codes will tell the problem.

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2001 buick century. engine light went on, not sure why? is this just a standard light that comes on every couple thousand miles? need help

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Disconnect the battery. If light comes back take to shop to read Diagnostic Trouble Codes.

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1987 Buick Century Limited V-6 engine w/ac. Engine cranks but won't start. Instrument panel light shows "Service Engine Soon". Also light shows "Oil Choke". And light shows picture of battery.

I took my car to my mechanic. He did a diagnostic circuit test on the engine and then replaced the distributer ignition module and camshaft and crankshaft position sensors.

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