20 Most Recent 1987 Buick Century Questions & Answers

Chgeck vaccum leaks.

Check your ignition coli maybe it needs service

Have you figured out the problem?

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.

Replace the fuel pressure regulator

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

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

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

No adjustment, unless the motor is apart & yourputting the heads back onThey have been hydraulic lifters for at least 50 yearsThe motor is old & the lifters are dirty & worn & possiblyother issues in valve train,sticking valves,worn valve guidesetc

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.

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.

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

How old is the fuel pump?Check fuel pressure with a gauge on the enginefuel rail port.Have someone listen by fuel tank for pump,when youcycle the ignition on & off

Its in the gas tank if that is your question.

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

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