what makes the oil pressure go down?

Asked by Jul 30, 2015 at 01:18 PM about the 1997 Buick LeSabre Custom

Question type: Maintenance & Repair

also need to know if this is what makes the oil pressure go up and down

2 Answers

5

Oil pressure rises and falls with rpm. An oil pump is rpm based so the faster the engine spins the more pressure it makes usually limited to a certain point. What makes oil pressure lower (new engine as compared to a engine with 200k miles for example) is bearing clearances have opened up from use and causing oil pressure to be lower. If it is much lower there can be a few underlying issues.

31,455

Oil pressure also changes with the temperature of the oil. On a cold wintry morning the oil pressure will higher especially at idle until the oil warms up.

Your Answer

Add photo

Related Questions

  • 2002 Buick LeSabre making a loud sound when driving it. It gets louder the fast I go. 5 answers

    2002 Buick LeSabre making a loud sound when driving it. It gets louder the fast I go. It sounds like a motorcycle when it is driving fast down the highway or an airplane. Eeek! I can feel it also a li...

    2002 Buick LeSabre

    -

    Maintenance & Repair

  • 2002 Buick Lesabre Engine Explosion 8 answers

    I have a 2002 Buick LeSabre with 123,000 miles. The car was in excellent condition. One day, I went to start the car and there was a loud explosion under the hood. The engine ran, but it raced at v...

    2002 Buick LeSabre Limited

    -

    Maintenance & Repair

  • what makes the fuel gauge needle suddenly drop way down past full? 13 answers

    2005 Buick LeSabre Custom, 56400 miles, go in car to start driving home from store and noticed fuel gauge needle dropped down almost facing south; when I started the car it went up to directly north (...

    2005 Buick LeSabre Custom

    -

    Maintenance & Repair

  • Where can I find the computer on a 1989 Buick LeSabre? 46 answers

    I have a 1989 Buick LeSabre that stalls out while in motion. Seems to happen when a part gets too hot. After sitting for awhile, I can drive for awhile again. Assume it is the Computer or the Catalyt...

    1989 Buick LeSabre

    -

    Maintenance & Repair

  • quits in the middle of the roaD 30 answers

    Anyone else have trouble with this car just stopping in the middle of the road. I've had this for about 5 years, I average under 100 per week, local driving. In the spring it started randomly honkin...

    1992 Buick LeSabre

    -

    General

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,870
#2 John Saffrahn
John Saffrahn
Reputation 1,540
#3 POPEYE99
POPEYE99
Reputation 1,350
View All

Related Models For Sale

Used Buick Park Avenue
436 listings starting at $3,975
Used Buick Century
924 listings
Used Chevrolet Impala
845 Great Deals out of 34,371 listings starting at $1,800
Used Buick Regal
198 Great Deals out of 10,625 listings starting at $2,195
Used Cadillac DeVille
1,702 listings starting at $1,777
Used Toyota Camry
1,289 Great Deals out of 96,928 listings starting at $999
Used Ford Taurus
344 Great Deals out of 21,442 listings starting at $1,499
Used Mercury Grand Marquis
27 Great Deals out of 2,029 listings starting at $1,500
Used Honda Accord
1,079 Great Deals out of 74,911 listings starting at $969
Used Chevrolet Malibu
1,013 Great Deals out of 77,144 listings starting at $2,795
Used Lincoln Town Car
28 Great Deals out of 1,922 listings starting at $1,700

Used Cars For Sale

2005 Buick LeSabre Custom For Sale
8 Great Deals out of 230 listings starting at $1,768