Jump to content

78 D100 Keeps Shutting Off


wayfarerstranger

Recommended Posts

my 78 Dodge D100 slant 6 keeps shutting off when i slow down or come to a stop , not everytime but if it idles for to long it will shut off , has new fuel pump , air and gas filters , battery , voltage reg. and i cleaned out the carb . any idea`s " carb problems ,,, battery cables ??

Link to comment
Share on other sites

How much does your key ring weigh???  If your vehicle is high miles and you have been driving around for years with 5 pounds of keys on you ring, I have seen vehicles shut off going over bumps, making sharp turns, making hard stops, all from the key ring wiggling out of the ON position, due to the pendulum effect of the wieght working against the worn mechanism. 

Link to comment
Share on other sites

i only have one key but it weights 40lb`s      it is a 3 speed        it has improved a little the more i work on it   it is worst at first start up   seems to do better after warmup  ..  it has to be sometihing in or around carb      choke     vacuum  ? if ya tap gas pedal  it helps to keep it running  i also turned the idle up

Link to comment
Share on other sites

Check for air leaks in the intake at the carb to manifold and at the manifold to head.  Had a Volvo that did similar years back, turned out the intake manifold was loose and sucking air.  I replaced a lot of parts before I hooked up the vacuum gauge and found it only pulling 12 to 15 inches.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Terms of Use