High Idle, no brakes. Loss of vacuum?
06-28-2006, 11:03 AM
#1
High Idle, no brakes. Loss of vacuum?
I finally got around to replacing my leaking header gaskets with copper ones, and decided to put on my new valve covers while I was at it. I found out that the passenger side PCV grommet was the wrong size, and running the car with that open made it idle high and not hold any vacuum for the brakes. I got the right size grommet at NAPA and attached the PCV valve on the passenger side, but I still have no brakes and a high idle. I double checked everything on the TB, I reconnected everything. The only thing I can think of is that I must have broken a vacuum line or something while I was working on the car. I've looked around, and nothing is unusual from what I can tell, but I am no expert. I have to fix this today so I can drive to Texas tomorrow, so I need to figure this out.
06-28-2006, 02:33 PM
#2
Member
Dead ringer for a big vac leak somewhere.
Worked before you changed the PCV? My bet is something wong with the PCV - try pulling the hose off the valve while it's running and hold your finger over the hose to check for vacuum. If that fixes it something's wrong with the PCV valve.
If not that, try doing the same thing at the brake booster. There should be *some* vacuum there even if there's a leak, unless the hose is cracked or has pulled off somewhere.
good luck
Worked before you changed the PCV? My bet is something wong with the PCV - try pulling the hose off the valve while it's running and hold your finger over the hose to check for vacuum. If that fixes it something's wrong with the PCV valve.
If not that, try doing the same thing at the brake booster. There should be *some* vacuum there even if there's a leak, unless the hose is cracked or has pulled off somewhere.
good luck
06-28-2006, 03:32 PM
#3
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Join Date: May 2006
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Car: 1987 gta T/A
Engine: 5.0 TPI
Transmission: 700R4
Axle/Gears: 3:23
do just that. but possibly you disconnected the hose to your brake booster by accident?? check all around that area
06-28-2006, 08:02 PM
#4
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Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Check the PCV valve... does it rattle when you shake it?
06-29-2006, 12:19 AM
#5
Haha, I'm such an idiot. Even though I SWEAR I double checked everything before I closed the hood and started it up, upon re-examining everything the hose fom the manifold to the brake booster was unplugged. 
Yeah, that'll do it alright.
Yeah, that'll do it alright.
06-29-2006, 07:35 AM
#6
Member
ding ding! we have a winner
I hate that kinda thing. At least it wasn't something important - like an oil drain plug or something.
I hate that kinda thing. At least it wasn't something important - like an oil drain plug or something.
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