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Engine shuts off when braking hard

Started by johnnycharger, February 10, 2016, 11:22:22 PM

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johnnycharger

February 10, 2016, 11:22:22 PM
Hi All
I was out test driving the charger the other day(new alternator & battery) when some idiot made a left turn in front of me and I had to slam on the brakes. Thank God I didn't hit him but the charger died. I thought this was weird and went out on one of the back roads and every time I braked hard the engine stalled out.
What causes this?

70 sublime

#1
February 10, 2016, 11:55:31 PM
Power brakes and you used up all the vacuum ?
next project 70 Charger FJ5 green

myk

#2
February 11, 2016, 10:31:39 AM
Check your carburetor float levels; probably too low...

66FBCharger

#3
February 11, 2016, 12:33:21 PM
Years ago I had a similar problem with my '70 road runner. It turned out to be a worn throttle shaft on the carb. It had a vacuum leak that caused the engine to die when using the brakes. I had the carb. throttle shaft bushed and the problem was solved.
'69 Charger R/T 440 4 speed T5, '70 Road Runner 440+6 4 speed, '73 'Cuda 340 4 speed, '66 Charger 383 Auto
SOLD!:'69 Charger R/T S.E. 440 4 speed 3.54 Dana rolling body

don duick

#4
February 12, 2016, 02:55:55 AM
my radio turns off and back on when I hit the brake. Might be an electrical problem and is turning off your ignition. Try disconnecting your brake lights. :shruggy:

BLK 68 R/T

#5
February 14, 2016, 02:13:01 PM
Quote from: myk on February 11, 2016, 10:31:39 AM
Check your carburetor float levels; probably too low...

:iagree:
Could be set to high as well causing fuel to spill through the carb flooding the engine.
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