Oil pressure loss

Asked by Oct 12, 2016 at 08:35 PM about the Chevrolet C/K 20

Question type: Maintenance & Repair

I have a 1980 Chevrolet k20,  with a 1975 .
7.4L , 454ci, . Originally it ran at idle with oil
pressure at 40psi and would go up to 50psi,
a few days after an oil change it started only
having 25psi on gauge, at idle and dropped
as I accelerate. It always had a small oil leak
so I changed oil pan gasket,  but problem
still exists with the oil pressure,  info on
what's going on would be greatly
appreciated,.

4 Answers

20,400

Did you recheck oil level on some vehicles have to add another quart a few days after changing oil.

Yes, I check every day because im anal , and it's my baby

20,400

What weight oil did you use ? Did you change from what you normally use ?

20,005

Big blocks use 7 quarts if I'm not mistaken. Lower pressure while accelerating is either low oil level or something is wrong with the pickup tube

Your Answer

C/K 20

Looking for a Used C/K 20 in your area?

CarGurus has 35 nationwide C/K 20 listings and the tools to find you a great deal.

ZIP:

Chevrolet C/K 20 Experts

  • #1
    F_O_R
    Reputation
    100
  • #2
    kayzen
    Reputation
    80
  • #3
    Runningfree1988
    Reputation
    60
View All

Related Models For Sale

Used Chevrolet C/K 2500
199 listings starting at $6,495
Used Chevrolet C/K 1500
854 listings starting at $2,603
Used Chevrolet Silverado 1500
2,577 Great Deals out of 173,112 listings starting at $955
Used Chevrolet Silverado 2500HD
380 Great Deals out of 30,272 listings starting at $2,995
Used Ford F-150
3,115 Great Deals out of 219,518 listings starting at $1,200
Used Ford F-250
447 listings starting at $4,995
Used Chevrolet C/K 3500
200 listings starting at $3,199
Used GMC Sierra 1500
1,181 Great Deals out of 64,150 listings starting at $999
Used Chevrolet Blazer
3 Great Deals out of 948 listings starting at $950
Used Dodge Ram 2500
141 Great Deals out of 5,403 listings starting at $2,661
Used Chevrolet Suburban
474 Great Deals out of 23,913 listings starting at $1,799
Used Chevrolet Camaro
428 Great Deals out of 31,237 listings starting at $1,450
Used GMC C/K 10
13 listings

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.