Car Dies?

S

Sargis3

Junior Member
When driving and coming up to a stop sign, i press the brakes and the car wants to die. What could be the problem?
 
Sargis3 said:
When driving and coming up to a stop sign, i press the brakes and the car wants to die. What could be the problem?
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Where does one begin?? have you checked the gas air mix on the carb, have you checked the fuel line, carb filter for any rust/junk/blockage of the fuel line. Is the timing set correct, points okay...that is where i would begin at?
:confused:
 
If the car runs good otherwise I would try richening up the idle. Try screwing in the idle air screw a little and /or check the float level. Many times raising the float level just a little will cure the dieing on stops problem.
 
I'm with Lindy. If the engine idles OK when the car is parkerd, use one of the visual fuel level gauges to check the float level.
 
Engine dies when vehicle comes to a stop

  • Float is set too high or a pin hole absorbs gasoline into float.
  • Compensator Jet Orifice contains dirt or rust, or is too small.
  • Idling Jet Orifice contains dirt or rust, or is too small.
  • Idle Air Adjust Screw is mis-adjusted or too short, collapsing spring before it seats.
  • Throttle Idle Adjustment Screw is mis-adjusted.
  • Upper Casting Idle Jet Passage is restricted to Idle throat port.
http://www.model-a.org/engine_dies_stop.html
 
Since it happens when you put on the brakes, check to see if the brake pedal is shorting out the wire to the starter, then check to see if the brake light switch is shorted.
 
Easiest way to check the shorting out starting cable might be to drive at night with the lights on and see what happens electrically to the lights when you brake.
 
when i drive at night the lights dim at low idle but thats all. when i speed up the lights get a little brighter.
 
  • Float is set too high or a pin hole absorbs gasoline into float.
  • Compensator Jet Orifice contains dirt or rust, or is too small.
  • Idling Jet Orifice contains dirt or rust, or is too small.
  • Idle Air Adjust Screw is mis-adjusted or too short, collapsing spring before it seats.
  • Throttle Idle Adjustment Screw is mis-adjusted.
  • Upper Casting Idle Jet Passage is restricted to Idle throat port.
 
Driving at night does not address the issue of what happens when you put on the brake. Driving at night with the brake up proves nothing. The best way to check if the brake is shorting the battery wire is to remove the floorboard, press down on the brake and see if it is hitting the wire to the starter, and also check to see if the wire is worn somewhere along its length because it may not hit on this precise time of testing. Then try the same thing with the engine running. If that is negative, with the engine running, check the brake switch by stepping on the brake. These things can and should be checked in your garage with the engine running but the car stationary. If the car only wants to die when you put on the brake you should be able to test things at home by simply putting on the brake and eliminating possibilities. After you check these things at home, if it only happens when you are on the road, move on to the other suggestions. Always try the easy things first.
 
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