how much vacuum at the throttle body?
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,308
Likes: 1
From: Portsmouth VA
how much vacuum at the throttle body?
anybody know how much vacuum the PCV valve should have to it on my 90 L-98? the fitting that goes to the EGR has lots of vacuum but the one for the PCV valve doesn't have any that i can feel with my finger (not really scientific, huh?).
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Re: how much vacuum at the throttle body? (SonnyinVA)
Well since no one else answered this, Im going to take a stab at it. If there is no vacuum at the pcv valve then the hose has colasped (common in cars since it has some oil traveling in it and it is under a vacuum) or the fitting itself is stopped up. Good luck!!
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,308
Likes: 1
From: Portsmouth VA
Re: how much vacuum at the throttle body? (SonnyinVA)
well, i know the pcv valve is good and so is the hose, i changed to a 58mm holley throttle body recently and now there is no vacuum at the pcv fitting on the throttle body... and i can't remember if there was before the swap or not?
