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Questions and Answers | Return to The CJ2A Home Page Re: Needhelp! Jeep won't run.

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Posted by Rich Malfa on January 08, 2003 at 13:59:06:

In Reply to: Posted by on January 02, 2003 at 19:11:00:

: Just recently my jeep started having some problems while running.

: It will run fine, then will start cutting out, as if it is not getting gas. If you let off the throttle, it will idle ok, but when you give it any gas, it won't rev and will stall out unless you let off the gas again.
: Today, me and my dad replaced the spark plugs, the old ones were really carboned up. It ran fine again, untill the engine warmed up to its normal operating temperature [180 degrees] Then began cutting out again.

: The fuel system is mostly new in the last two years. new tank, gas line, fuel pump, rebuilt carbuerator. Tomorrow my dad is going to vacuum test the fuel pump.

: Any ideas what might be wrong?
: Thanks,
: Denny

Granted the low compression readings are a problem. Some carbs have what they call
an accelerator pump. Its meant to give the engine an extra squirt of gas to give the carb
a chance to catch up with engine speed and air flow. There is usually a check ball that
holds that bit of gas. You say the carb was rebuilt, maybe that check ball was left out of
the rebuild. I left it out of a carb rebuild I did many years ago and had similar
symptoms. Just my two cents worth.
Good Luck.
Rich

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: : Just recently my jeep started having some problems while running. : : It will run fine, then will start cutting out, as if it is not getting gas. If you let off the throttle, it will idle ok, but when you give it any gas, it won't rev and will stall out unless you let off the gas again. : : Today, me and my dad replaced the spark plugs, the old ones were really carboned up. It ran fine again, untill the engine warmed up to its normal operating temperature [180 degrees] Then began cutting out again. : : The fuel system is mostly new in the last two years. new tank, gas line, fuel pump, rebuilt carbuerator. Tomorrow my dad is going to vacuum test the fuel pump. : : Any ideas what might be wrong? : : Thanks, : : Denny : Granted the low compression readings are a problem. Some carbs have what they call : an accelerator pump. Its meant to give the engine an extra squirt of gas to give the carb : a chance to catch up with engine speed and air flow. There is usually a check ball that : holds that bit of gas. You say the carb was rebuilt, maybe that check ball was left out of : the rebuild. I left it out of a carb rebuild I did many years ago and had similar : symptoms. Just my two cents worth. : Good Luck. : Rich

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