I highly recommend taking it to a service station because you will need to have it retrofitted and the freon changed to r134a instead of r12 ---- DO NOT ADD r134a to r12 it will lock up your compressor ---- But the low pressure valve is the one closest to the firewall it will look like a tire valve stem. The high pressure is located closer to the ground.
33 psi
30LBS in each tire.
40-47psi
Manifold Absolute Pressure/Barometric Pressure Sensor
The 1990 Buick LeSabre air conditioner recharge valve can be found on top of the air conditioning compressor. The air conditioner recharge valve will have a blue top.
on the fuel rail to the side
The fuel pressure for a 2003 Buick LeSabre typically ranges from 41 to 47 psi (pounds per square inch) when the engine is running. It's important to check the specifications in the vehicle's service manual or consult a professional mechanic for the most accurate information. Proper fuel pressure is crucial for optimal engine performance and fuel efficiency.
32-35 psi
Because its a 1988 Buick LeSabre
Where is the thermostat located on a 1987 Buick LeSabre?
where is the ecm on a 2000 buick lesabre
R H REAR OF THE ENGINE