1995 Buick Century - Answered Questions & Fixed issues

My 96 century with a 3.1 v-6 gave me fits for years shooting a 171 code(running too lean) I wound up changing the fuel filter and the problem went away. If it's been a while since the filter was changed, try it.

There isn't one

Check the fluid level and if it low top it up. However I doubt this will fix it. The bad news is that it sounds like your transmission has had it and the only solution is to get it repaired. Take it to a specialist transmission repairer for them to do a diagnosis, but expect bad news.

You have done well so far, but this is a hard problem. Have you checked the reference voltage (usually 5vdc) that is going to the temp sensor? It might be getting pulled down by one of the other sensors on that wire. A way to check is to get a baseline voltage on the coolant temp sensor black wire. Then unpulg the map sensor--does the voltage on the black wire increase? If yes, replace the map sensor. If not, next unplug the A/C pressure sensor. Same process. Finally, unplug the transmission temp sensor. If unplugging any of these sensors increases the voltage on the black wire by say a volt, replace the bad sensor and retest.

check the breather in the tank cap make sure its not blocked.

Check the hose for leaks at the connection, if it is the original hose replace it and the thermostat and gasket.

Go to http://www.bbbind.com/free_tsb.html free wiring an fuse box diagrams ! Enter vehicle info , year , make , model an engine size . Then under system click on electrical distribution , then under subsystem click on fuse panel .

Did you check fuse's ? None of power locks work ,lock - unlock ? What lights don't work ? inside or out side or all ?

Check the owner's manual.Relays are under a cover in the engine compartment or under the dash. The owners manual should show you the location.

I had a Chev Corsica with V6. The fuel lines that ran straight fore and aft to/from fuel tank were metal. But where comes out of tank it was rubber. I'm assuming you've developed a pinhole leak in one of the metal fuel lines. I would suggest putting a "sleeve" of neoprene fuel line over the leak and clamp in place. This requires cutting the neoprene hose lengthwise so that you can slip it over the bad spot. Jut keep in mind that these fuel lines are under a bit of pressure.

Take the top rad hose off the top of the engine and the thermostat housing should be the part you take the hose off of. There probably is two or three bolts that hold this housing on. Carefully take it off and the thermostat should be inside this housing going inside the top of motor. Replace with new one making sure you put a new gasket in place as well and replace housing but do not over tighten the bolts as they sometimes break off then you are in trouble Make sure you install the thermostat the right side up I did get one up side down once and they don't work that way. Wishing you good luck.

howdie on the Back of the tranny is a cable or wire that goes to the speedo replace it and it will work again the module get used one if ya WAnt but take it with ya cause ther is so many colour Codes so match it up

You don't mention the engine size or if it's multi-port fuel injected or throttle body injection. At any rate it sounds like a fuel delivery issue. You might try changing the fuel filter. Or have the throttle sensor checked. Best thing to do is to get a repair manual for your make/year/model. I've found the Chilton/Haynes repair manuals, which you can get at your local parts stores or Walmart to be very helpful and they do have trouble shooting that lead to most common issues given the symptoms. It should also have a check engine light coming on with the codes that can be read by an OBD-II reader. It may well need a general tune-up.

Could be the speedometer itself, or the speed sensor in the transmission.

Hi there, Sounds like the door lock actuator is gone; the mechanism that locks/unlocks the door with your auto system.

What engine does your car have ? 3.1 L V-6 ? If so these engines have intake manifold problems , vacuum leaks , coolant in the oil ! How many miles on it ? Worn timing chain , jumped time ! Could have plugged catalytic converter . To do a compression test you a compression tester ! How To Perform Compression Test EricTheCarGuy

Obviously, something besides oil is getting in the crankcase. Since it isn't fuel, it is probably coolant. This would be indicative of a leaking head gasket. How is your radiator coolant level?

There could be a cover for something hiding it, I have a car that I had to remove a shield from the crank gear to get to a starter bolt.

Here's a link to removing your starter,may nneed a wratch with a extension to remove bolt. GET 25 GIFT CARD FOR EVERY 100 SPENT ON ONLINE SHIP TO HOME ORDERS

You need to change the "Coolant Temperature Sensor". That usually controls the fan. If the fan does not run, you will overheat.