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Brake booster kills engine

  • Thread starter Thread starter MickeyK65Stang
  • Start date Start date Mar 9, 2006

MickeyK65Stang

New Member
Dec 2, 2002
105
0
0
Laguna Hills, Ca.
Mar 9, 2006
#1
  • Mar 9, 2006
  • #1
I have front disc's and rear drums with a power booster. The problem I have is when I come to a hard stop my engine dies. If anyone has fixed this problem please let me know how you did it. THANKS
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Mar 9, 2006
#2
  • Mar 9, 2006
  • #2
Could be from either fuel slosh in the carb bowls or the booster's leaking and you have a vacuum leak. Does the engine start missing everytime you apply the brakes, even idling in park ?
 

iskwezm

10 Year Member
May 24, 2005
4,159
20
79
Rowland Heights,California
Mar 9, 2006
#3
  • Mar 9, 2006
  • #3
damn Mickey, where ya been.

Sounds like a carb issue.
 

4MuscleMachines

Member
Jul 20, 2005
417
1
17
South Texas
Mar 10, 2006
#4
  • Mar 10, 2006
  • #4
I had the same problem with hard braking and even hard turning. The engine would sputter and start to die and I would have to stab the throttle quickly several times to get it going again.

IMO, fuel slosh in the carb, you need to get those plastic fuel baffles that many carb rebuilders remove when redoing the carb. Summit and Jegs sells them for about $3.
 

red65

Member
Apr 12, 2003
411
0
17
Ann Arbor, MI
Mar 10, 2006
#5
  • Mar 10, 2006
  • #5
MickeyK65Stang said:
I have front disc's and rear drums with a power booster. The problem I have is when I come to a hard stop my engine dies. If anyone has fixed this problem please let me know how you did it. THANKS
Click to expand...

Could be a bad power brake booster too. Applying the brakes could cause a big vacuum leak, leading to your stalling problem. Does the idle quality change when you step on the brakes (while you're sitting still)? If not - go with the other guys - fuel slosh. Too easy not to try this, though...
 

thehueypilot

Active Member
Feb 25, 2004
1,084
0
37
Medina,Tennessee
Mar 10, 2006
#6
  • Mar 10, 2006
  • #6
Or......plug the vac hose going into the booster and jam on the brakes to see what effect it has on it. If it still dies you will know its not the brake booster. Make sure you are away from traffic because your stoping distance will be longer and pedal effort will be harder. I know this because I blew the hose off my brake booster during a 90 mph run on an 1/8 mile track with a short shut down area. It took both feet standing on the pedal and pulling on the steering wheel to slow down. Yikes!
 
M

mustangdave

My rearend needs a stud and two nuts.
Founding Member
Feb 26, 2002
2,976
1
56
North Carolina
Mar 10, 2006
#7
  • Mar 10, 2006
  • #7
thehueypilot said:
Or......plug the vac hose going into the booster and jam on the brakes to see what effect it has on it. If it still dies you will know its not the brake booster. Make sure you are away from traffic because your stoping distance will be longer and pedal effort will be harder. I know this because I blew the hose off my brake booster during a 90 mph run on an 1/8 mile track with a short shut down area. It took both feet standing on the pedal and pulling on the steering wheel to slow down. Yikes!
Click to expand...

Were you yelling "Whoa baby" while you pulled on the steering wheel? That helps them stop faster. Seriously, I've had to do that for an emergency stop with manual brakes; the only way to get more leverage on the pedal was to pull on the wheel. I actually came out of my seat standing on the pedal.
 
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