Question about 1986 Buick Century

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Do I need to prime the engine after it has sat for more than a year. If so how do I go about this?It is a 1986 buick century limited with the 6cyl engine.

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No you do not have to prime it. But you should change oil and put 5 gallons of fresh gas in it before starting. The oil collects moisture from sitting. The gas gets stale andding more will dilute old.

Posted on Jul 17, 2009

  • Frank Meola Jul 17, 2009

    No you do not have to prime it. But you should change oil and put 5 gallons of fresh gas in it before starting. The oil collects moisture from sitting. The gas gets stale andding more will dilute old.

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Try a little starter fluid in the intake, and add a fuel stabilizer if same gas in it

Posted on Jul 17, 2009

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1 Answer

Fuel Pump Location


The 2.8 engine in a 1986 Century uses a carb instead of fuel injection. So it uses a mechanical pump that goes in the side of the engine.

Jan 21, 2014 | 1986 Buick Century

1 Answer

1986 Ford F150 6cyl, carb., spark good, fuel in throttle, dry spark plugs,...what is problem? Just swapped motors, but same everything except 85 motor.


Because there is no fuel to the plugs I would pull the 02 senor out of the tailpipe and see if the catalytic converter or muffler is plugged. If they are they put back pressure on the engine and not allow the fuel to be drawn into the cylinder and fire.

May 06, 2017 | 1986 Ford F150 SuperCab

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86 buick century 2.5l. car sat about 6 months, no start, but when fuel is added to throttle body fires up. when i pulled the fuel line from TBI it sprayed across engine compartment. but when connected...


pressure underhood is good. i'd check the plug conection at the throttle body(injector).see that the injector trigger wires haven't been cut or crimped around the air filter.the injector can be removed from the body for cleaning,but you may want a shop to do that with an ultrasonic cleaner.does it spray at all when cranked?check all sensor connections too.

Jan 26, 2011 | 1986 Buick Century

1 Answer

Where is the thermostat located on a 1986 buick century? An illustration would help!


A 1986 century, you forgot to list then engine size so i will guess its a v6 engine, if its a four cylinder just follow the top radiator hose to the engine and the same goes for the v6 engine, the housing that the top hose clamps to at the engine is where the thermostat is locted,

Jan 08, 2011 | 1986 Buick Century

1 Answer

Looking for the diagnostic link connector Where is it?


OBD DIAGNOSTIC LINK CONNECTOR2000 Buick Park Avenue 3.8L SFI OHV 6cyl the OBD Diagnostic Link Connector is located: Front seating area, driver side, under dash, mounted under dash on driver side

2000 Buick Century 3.1L SFI OHV 6cyl the OBD Diagnostic Link Connector is located: Front seating area, driver side, under dash, mounted driver side of steering column


Just as reference; if you will send the specific year and model we will can confirm or posted additional details.

Hope this helps (remember to rate and comment this).

Nov 27, 2010 | Buick LeSabre Cars & Trucks

2 Answers

Where is the thermostat located


2000 Buick Century 3.1L SFI OHV 6cyl

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Fig. Unfasten the water outlet attaching bolts, then remove the outlet-3.1L engine shown

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F
ig. View of the thermostat in its seat in the intake manifold-3.1L engine shown

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Fig. Remove the thermostat from the housing.


Hope this helps (remember to rate and comment this).


Oct 01, 2010 | 2000 Buick Century

1 Answer

Where is the Cam Sensor located on a 1995 Buick Century 6cyl engine? Is it accessible for replacement?


Under hood, passenger side, lower engine area, above and behind crankshaft pulley, mounted on engine block.

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Jul 01, 2009 | 1995 Buick Century

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