Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hi, My Name is ***** ***** for posting your question to just answer. I am a independent contractor for just answer, and ASE Certified Master Auto Technician with 20 years experience. I am confident we can resolve your problem together.Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution.There will probably be some equipment needed for a proper diagnosis. If you are not comfortable with this or do not have any test equipment please let me know ASAP. I also try to give all of the information you may need expecting a positive rating. I am not compensated for my time until you leave a positive rating. Your rating should be based on the service you received.
My immediate suspect would be that the regulator spring is broken or valve is sticking.
What is your mechanical ability?
The pressure regulator is in timing cover. If you remove the oil filter adapter the spring and valve should come out
The adapter has more than 3 bolts. 4 I think. Yes pressure sensor screws into it
OK. Please don't forget to leave a rating. It is possible the front cover may need to be removed as there could be damage to the oil pump. The regulator would be my first place to look though.
The either the pump is shot or the engine has an internal leak
I dont understand question.
If the regulator valve pushed out of cover I doubt the spring is broken. Usually the regulator sticks in bore or oil pump itself has failed. Here is a video of inspection https://www.youtube.com/watch?v=m9wox84Um0I