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Username Post: brake pedal assist        (Topic#347961)
jonibood 
Forum Newbie
Posts: 13

Reg: 10-14-17
10-30-17 10:22 AM - Post#2712711    

I have a new problem which might have been my timing issue this whole time.There is a vacuum line from my firewall attached to my brake pedal which must be a power assist or booster i put in a new check valve but dont have clue one on where this vacuum line attaches i attached to the tee where my tranny line is attached and it changes the idle when you depress it until my 100 shop manual comes in the mail i havent a clue.This was a long postponed build because of health situation with my son so memory is vague if someone knows you would save my censored. ty



 
LMC Truck
gchemist 
Senior Chevytalk Moderator
Posts: 24202
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
10-31-17 05:31 AM - Post#2712776    
    In response to jonibood

Cruise control! It deactivates cruise control when the pedal is pressed.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
jonibood 
Forum Newbie
Posts: 13

Reg: 10-14-17
10-31-17 10:47 AM - Post#2712826    
    In response to gchemist

Does that hose connect to the intake or?



 
jonibood 
Forum Newbie
Posts: 13

Reg: 10-14-17
11-01-17 09:39 AM - Post#2712939    
    In response to jonibood

ok so with this unhooked i take it wont interfere with how the truck runs i can leave it unhooked and unplugged good to go shouldnt interfere with the running timing of the truck?



 
gchemist 
Senior Chevytalk Moderator
Posts: 24202
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
11-01-17 12:13 PM - Post#2712964    
    In response to jonibood

Find the other end. Any open vac leak to the intake will affect timing. Follow the cruise control diaphragm. Along the line there is a T connection. The brake switch line should go there. When you push the pedal, vac is released disengaging the cruise control.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
jonibood 
Forum Newbie
Posts: 13

Reg: 10-14-17
11-01-17 01:43 PM - Post#2712974    
    In response to gchemist

ty



 
jonibood 
Forum Newbie
Posts: 13

Reg: 10-14-17
12-05-17 12:06 AM - Post#2716921    
    In response to gchemist

So most of my problems were solved when i finally found out that i had vacuum leak on the intake manifold itself when they pulled the motor.thanks for all the timely responses.



 
gchemist 
Senior Chevytalk Moderator
Posts: 24202
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
12-05-17 03:56 AM - Post#2716928    
    In response to jonibood

Wow. Was the intake warped? Good find. Thanks for following up.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
LMC Truck
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