How to fix my gas gauge on my 1988 Buick Century

Enter this string in your web browser under the images search bar"wiring diagram for a 1988 buick century window switch"
and you also look at this web page:
http://ricksfreeautorepairadvice.com/window-goes-up-but-not-down-window-goes-down-but-not-up/

sounds like you have a bad sending unit

by pass relay to see what happens.

The firing order for a 4-cylinder 2.2L Buick Century is: 1-3-4-2. The distributor rotates in a clockwise direction, with #1 plug wire located at the upper left of the distributor The firing order on a 3.1 v6 is simple. 1-2-3-4-5-6 See a diagram of the 3.1 and 3.8 here. http://www.2carpros.com/forum/1999-buick-century-spark-plug-firing-order-vt177159.html http://autorepair.about.com/od/enginefiringorders1/

The sending unit in your tank is bad replace it.

Yes, the gas gauge works with the digital gas information on the cluster. So if your gauge is malfunctioning, your gas info in the digital cluster will be a misreading.

Check the ground wire at the sender and behind the gauge.

It is possible that the connector came off the back of the circuit board behind the speedometer. Do the lights work IN the speedometer and gauges? Could also be that the ground wire loosened up under the dash, usually on the drivers side. Just some suggestions that I thought might help. Best wishes to you.

the fuel filter is located under the car near the outside frame it is just connected with two quick connects just release the fuel pressure before unhooking the filter and watch your eyes a little gas will come out of the filter

i have an 88 buick century 4 cylinder can make you a diagram if you still need it e-mail me at [email protected] ty