20 Most Recent 1996 Buick Century Questions & Answers

one hose goes to the intake manifold, the other goes to the evap switch,there are two valves, one a purge valve and the other a evap switch,the purge valve has one hose going to the intake and the other hose goes to switch, then then switch has another hose that goes to evap canister,eveh better heres a diagram, hope this helps,

if engine at long stand still,the engine temperature will rise about 190 degrees the cooling fan suppose to automaticaly turn on when coolant temperature sensor get hot it cause its resistance decrease causing pcm to send power to coolant fan relays and cooling fans, when you turn on AC the cooling fans suppose to turn on to cool down AC CONDENSOR, IF NOT AC WONT WORK COOLING FAN COOLS DOWN REFRIGERANT SO IT CAN RECYCLE THROUGH THE SYSTEM AGAIN.your cooling is suppose to turn on when engine at a sit still if vechicle not moving as coolant temperature rises at a set point the cooling fans will turn on cool down engine.cooling fans dont turn on when you first cold stsrt vechicle unless you have AC SWITCH ON.if cooling fans dont turn on when vechicle at a long stand still or moving along slow traffic.if coolant temperature sensor been replaced and fuses and relays okay have dealership check see if pcm driver circuit working faulty pcm will cause cooling fans not to turn on.

There are many components in the cruise system. That system does not work with vacuum. The first thing I would check is the multi-function switch (the turn signal, wiper, cruise switch arm). On the back side of the turn signal arm is a plug that plugs into the steering column. Make sure that it is seated, or plugged in firmly. If you have had any work done recently on the steering column like turn signal switch replacement. That plug my have been disconnected and not reconnected completely. These multi-function switches do go bad. They are easy to replace though but a new one will cost over $100. Also the wire harness in the steering column do sometimes break off. The next thing I would check is the control unit. The cruise control unit is on the drivers side of the engine compartment right by the strut tower and the brake master cylinder. It has a cable attached to it going to the throttle body. Find the wire-harness plug on the back side of it and make sure that it is seated firmly in place. Considering the age of the vehicle My first guess is the multi-function switch. I have had to replace mine twice in my '96 cutlass, but I have also had to replace the wire harness in the steering column as well. It could be the switch on the brake pedal, or the vehicle speed sensor. I hope this gets you started in the right direction.

Some radiators don't have a drain. You don't want to use it even in you have one. They always break when you try to close them. Remove the lower radiator hose instead https://ricksfreeautorepairadvice.com/radiator-drain-valve-location/

First you will need 1/4 inch socket set, Philip screw driver, and a plastic panel remove tool. Pry off panels around your instrument cluster .
Remove four screws holding your cluster in place , pull forward and disconnect and remove. Replace all bulbs , verify repair then enjoy your day. Good luck

Most likely is a wiring or fusible link problem on the power feed from the battery to the fuse box under the hood.

check for a problem fuel pressure regulator most are wired to the ECM which is connected to the relay for the pump it works like this with low / no fuel pressure the regulator completes a circuit to the ECM that signal is then sent to a relay to start the pump when full pressure is reached , the regulator signals the ECM and the relay is turned off hence the pump is not continually running when pressure is not required

The rear doesn't have struts they are just regular shocks. Only standard hand tools and a floor jack are needed to replace them. See picture below.

Does it have 16 pin DLC , the place where you plug in the code reader ? What kind of code reader are you using ? Most of these the fuse for the Cig. lighter powers pin 16 ,check for B+ voltage with a volt meter , test light etc....

Check and make sure you didnt bend a pin when plugging the wire connection in.

I would have the ignition switch checked, and replaced if that is the problem.

If it is an automatic transmission, first check the fluid level. If it is low, fill it up and try it again. If the level is fine, then there is a bigger issue and you should seek a professional's help.

EGR and EVAP systems are tow different operations fixing what you did doesn't fix the code revealed

It is located on the starter motor.

look at the ports on the exhaust manifold and compare them to the ports on the cylinder head, some times one manifold port will service two valves.

When you turn it on, the power goes to the clutch through a fuse and a low pressure switch, check the fuse in the fuse block and then make sure you have Freon in the system, if it is low, the unit wont start.

Have code's check ,do the diagnostic's , repair the problem ,then the light will go out .

You must remove the trim/seat cover form the seat to access the cable.