20 Most Recent 1988 Buick Century - Page 9 Questions & Answers

You answered your own question-- possibly A failed high beam switch !

Google your OBD Codes TYPE: OBD PO440

yes fuse. motor .wires. switch

I recommend finding a qualified garage to make the repairs.

bad horn replace it

Here's a link to the 3.1 engine firing order. Specifications Firing Order AutoZone com

You didn't say what year or model your Buick is, but I would suggest replacing the relay/relays and the headlight switch.

need to scann the abs system

Could be compression rings, maybe out of time

The relay should be in the relay box in the engine compartment. Check your owners manual for details.

Bad seat parts. They will need repair or replacement.

1st I would change to premium gas for a tank or two.Might be a loose plug wire,run a can of engine cleaner through the engine,change the air filter.

you can but it will not put out the abs light on the dash. I guess this is why you want to bypass.

You replace,not clean it

go to autozone it's free

Look in owners manual also check lamps off/ on switch should be on steering colum

With engine at full temp and idel/ park pull dip stick. See owners manual.

here is a picture of the firing or