20 Most Recent 1989 Buick Century Questions & Answers


I recently tried the DIY service
and repair manuals from a website and it actually helped me repair transmission problem in my jcb 3cx site-master. It would'nt move forward or reverse, engine was good both solenoids for forward and reverse worked, but still couldn't diagnose the problem.
I don't have much technical knowledge but I just followed it step-wise, and now it works perfect! covers wiring, codes, diagrams, torque specs, PCV, everything
got it from www.reliable-store.com

1989 Buick... | Answered on Mar 22, 2018


Crankshaft position sensor , ignition module , ECM etc....

1989 Buick... | Answered on Mar 01, 2018


Diagram you can see at http://www.bbbind.com/free_tsb.html
Shows the relay, but does not give location. It is usually in the box you couldn't open. Diagram also shows you have an impact fuel pump cutoff. Do you have owner's manual? Ford has good relay diagrams in their manuals--I'm sure it will show.

1989 Buick... | Answered on Jul 17, 2017


Change the fuel cap. It may not be venting properly.

1989 Buick... | Answered on Jun 15, 2017


The firing order is 1-3-4-2

1989 Buick... | Answered on Apr 12, 2017


it is overheating. low on coolant/ thermostat stuck shut? see if both radiator hoses are hot.

1989 Buick... | Answered on Aug 15, 2016


Check voltage and ground at fuel injectors. The voltage should go hot with key on and is fuse protected. Also, check fuel injector ground, controlled by computer. The computer won't ground the fuel injector unless it see rpm signal, The signal comes from ignition module to computer. Because you said you had spark everywhere, I don't think it is the crank sensor. At the moment, I'd have to suspect ignition module. I can't rule out other possible issues?
How long since a tune-up? Are there any applicable trouble codes, your obd1, so you should be able to check some codes, yourself, if there are any? Don't replace anything unless your testing points in that direction. I can only make suggestions.

1989 Buick... | Answered on Apr 05, 2016


have you checked for power at the horn itself and is the ground good at the horn.

1989 Buick... | Answered on Aug 14, 2015


I'm not sure of engine Size? Did you check the crank sensor? Any applicable trouble codes? Do you have a fuel injector pulse, engine cranking?

1989 Buick... | Answered on May 25, 2015


The battery light indicates that there is a problem with the charging system. It

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

1989 Buick... | Answered on Apr 03, 2015


IF YOU HAVE REPLACED THE FUEL FILTER, HOW LOW SINCE YOU HAVE HAD A TUNE UP, IF ITS BEEN MORE THAT ABOUT 35000 MILES CHECK THAT FIRST, STALLING WHEN YOU PRESS THE GAS CAN ALSO BE CAUSED BY A BAD TPS, HAVE YOUR CAR SCANNED FOR CODES

1989 Buick... | Answered on Dec 09, 2014


Check the fuse and also the relays in the fuse box that is in the engine compartment ,

1989 Buick... | Answered on Apr 19, 2014

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