Why is their vacuum coming from the breather tube

Asked by Mar 23, 2015 at 09:50 PM about the 1978 Chevrolet C/K 10 Custom

Question type: Maintenance & Repair

The heat riser is working.Its a 350
create engine .Vacuum is very hard
coming in through the valve cover
breather tube .the PVC is working fine.
Its a four carb.with a edlebrock
intake.

8 Answers

18,765

The tube the pcv is hooked too?

Pvc left valve cover breather tube right valve cover

18,765

The tube for the pcv has vacuum or the other one has vacuum?

The breather tube connecTed to the right valve cover has vacuum and the Pvc connected to the carb hasvacuum seems like oil is sucking codown from the breather side of valvecover

18,765

Is the vacuum on the breaker coming from the valve cover or from where the tube is connected? And where do you have it connected?

18,765

If it's coming from the valve cover the pcv may be stuck open. I've never seen it produce much even in that case but that's the only thing I can think of. The breather tube should be hooked to the air cleaner. There is no vacuum there unless you have a restriction

Pvc is new and your right there should be no vacuum coming from the breather tube I'm thinking maybe intake gasket or the intake itself

18,765

So the vacuum is coming from the engine? Where is your breather hooked to?

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

C/K 10

Looking for a Used C/K 10 in your area?

CarGurus has 276 nationwide C/K 10 listings and the tools to find you a great deal.

ZIP:

Search Chevrolet C/K 10 Questions

Chevrolet C/K 10 Experts

#1 CaptPKelly
CaptPKelly
Reputation 680
#2 Rowefast
Rowefast
Reputation 370
#3 F_O_R
F_O_R
Reputation 360
View All

Related Models For Sale

Used Ford F-150
2,187 Great Deals out of 194,803 listings starting at $290
Used Chevrolet Camaro
355 Great Deals out of 31,422 listings starting at $2,500
Used Ford F-100
162 listings
Used Ford Mustang
738 Great Deals out of 44,989 listings starting at $1,500
Used Chevrolet Blazer
1,185 listings starting at $1,495
Used Chevrolet Corvette
220 Great Deals out of 22,127 listings starting at $3,850
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.