20 Most Recent 1987 Buick Century Questions & Answers

Check your ignition coli maybe it needs service

1987 Buick... | Answered on Jan 14, 2018

Have you figured out the problem?

1987 Buick... | Answered on Oct 17, 2015

you have a broken vacuum line going to the heater control module.It will be a black plastic line running though firewall from engine capartment.

1987 Buick... | Answered on Aug 29, 2014

run fault codes to check for injector problems . Have a fuel pressure test done on the fuel manifold to check the regulator --pump and firlter

1987 Buick... | Answered on Feb 02, 2014

look up your timing setting and use a timming light to set the timming.

1987 Buick... | Answered on Nov 18, 2013

it sounds like the electric cooling fan on the radiator is hitting something,and making it run too slow

1987 Buick... | Answered on Oct 03, 2013

No adjustment, unless the motor is apart & your
putting the heads back on

They have been hydraulic lifters for at least 50 years

The motor is old & the lifters are dirty & worn & possibly
other issues in valve train,sticking valves,worn valve guides

1987 Buick... | Answered on Oct 06, 2012

It may be tough to troubleshoot if you can't duplicate the problem in the shop. Especially on a car that old. Someone will have to check for fuel pressure and spark when it fails to start and then go from there.
Could be a long list of things without knowing where to start looking.
My guess would be a relay or the ignition module get hot and then cool down. But that is only a guess.

1987 Buick... | Answered on Aug 22, 2012

Cual es el codigo de fallo que detecto? Puede tratarse de alguna falla en la bomba de combustible; sugiero hacer pruebas de la presion de de la bomba de combustible para descartar esta situacion.

1987 Buick... | Answered on Aug 22, 2012

Chgeck vaccum leaks.

1987 Buick... | Answered on Aug 16, 2012

Here's a diagram of your car's fuses from another fixya post:
fuse block map
Is it possible that fuse 8 needs to be replaced? It controls the horn relay and power antenna.

1987 Buick... | Answered on Aug 12, 2012

How old is the fuel pump?

Check fuel pressure with a gauge on the engine
fuel rail port.

Have someone listen by fuel tank for pump,when you
cycle the ignition on & off

1987 Buick... | Answered on Jul 05, 2012

Its in the gas tank if that is your question.

1987 Buick... | Answered on Jul 02, 2012

My 1987 buick centry limited cuts off when i drive but when i start it back up it will start right bacc up at times some times it starts and die agin but when it dies the battery light and service engine light comes on but once it starts the service engine and battery light goes away and dont do it agine tell it cuts off agine

1987 Buick... | Answered on May 29, 2012

Very well could be that your crank sensor is faulty or the wireharness has come loose.

1987 Buick... | Answered on Feb 21, 2012

fuel pump relay located on the upper right side of the engine cowl.

1987 Buick... | Answered on Feb 07, 2012

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