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

20,020

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

20,020

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

19,545

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 28 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 1500
881 listings starting at $1,900
Used Chevrolet C/K 2500
203 listings starting at $3,994
Used Chevrolet Silverado 1500
2,283 Great Deals out of 169,690 listings starting at $1,000
Used Chevrolet Silverado 2500HD
336 Great Deals out of 30,639 listings starting at $3,500
Used Ford F-250
465 listings starting at $2,995
Used Ford F-150
2,580 Great Deals out of 199,186 listings starting at $1,300
Used Chevrolet Blazer
3 Great Deals out of 1,071 listings starting at $950
Used Chevrolet C/K 3500
3 Great Deals out of 238 listings starting at $1,500
Used Dodge Charger
418 Great Deals out of 28,476 listings starting at $2,490
Used Chevrolet Suburban
369 Great Deals out of 23,011 listings starting at $1,999
Used Ford F-100
160 listings
Used Chevrolet Camaro
444 Great Deals out of 30,843 listings starting at $1,450
Used GMC C/K 10
11 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.