Buick Cars & Trucks - Recent Questions, Troubleshooting & Support


Drain the radiator by using the peck **** valve on the lower part of radiator. The thermostat is located in the intake manifold where the large upper radiator hose attaches to the intake manifold. Remove the two bolts holding the thermostat cover to the intake manifold.

Buick Cars &... | Answered 7 hours ago


The power to the flasher comes from the turn signal switch.
Check fuses

Buick Cars &... | Answered 7 hours ago


Locate the flasher under the dash area and it just plugs into the wire harness connector

Buick Cars &... | Answered 7 hours ago


Look on the top of the intake manifold behind the throtle body.

Buick Cars &... | Answered 7 hours ago


Code 18 refers to the crank sensor which is located by the harmonic balancer.

Buick Cars &... | Answered 7 hours ago


Some codes will reset themselves after driving for a couple of days. Others will need a scanner to reset.

Buick Cars &... | Answered 7 hours ago


The relay is in the fuse panel box under the hood. Refer to the owners manual to see which relay it is.

Buick Cars &... | Answered 7 hours ago


Remove the fuel tank and replace the pump assembly

Buick Cars &... | Answered 8 hours ago


Short version, pull the intake manifold, take off the valve cover, remove the rocker arm assembly on both intake and exhaust valves , take out the spark plug and insert an air hose into the cylinder with about 90psi, and remove the spring with a spring compressor. The air pressure will keep the valve closed while you remove the spring.

Buick Cars &... | Answered 8 hours ago


Looks like a female torx star socket #30

Buick Cars &... | Answered 8 hours ago


If you mean will not crank over, then it could be the battery, connections, or the starter.

Buick Cars &... | Answered 8 hours ago


There is a linkage rod that connects the door key lock to the door lock. It is probably disconnected.

Buick Cars &... | Answered 8 hours ago


Did it ever restart? I would assume that the ignition switch wire connector did not make a good contact with the switch.

Buick Cars &... | Answered 8 hours ago


Looks like a heater hose.Buy a new one and replace the broken hose.

Buick Cars &... | Answered 8 hours ago


There are 3 o2 sensors. They are connected to the exhaust pipes and cat converter.

Buick Cars &... | Answered 8 hours ago


Do your dash lights work? They should be on the same circuit. If they work the fuse is ok and the problem could be the bulbs or wiring connections.

2007 Buick... | Answered 8 hours ago


The EGR valve will be located usually on the intake manifold on most v6 engines.

Buick Cars &... | Answered 8 hours ago

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