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post #1 of (permalink) Old 02-04-2007, 02:26 PM Thread Starter
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My jeep is cold and will not start

My 73 CJ 5 (304 Stock except elect. points replacement) will not fire in the cold. If te temp is below about 45 degrees it wil try to fire once and not again. I've tried to jump it off and no help there either. This is reeally getting old as it has been cold here for the last three weeks and I can't drive my jeep. Any ideas as to what I can do to get her to fire.

Matt
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post #2 of (permalink) Old 02-04-2007, 02:32 PM
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Re: My jeep is cold and will not start

They get really upset when the nissan gets the warm garage [img]/ubbthreads/images/graemlins/smile.gif[/img] Not sure why 45 degrees is such a problem, however when you say fire, does it crank? Does it continually crank?
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post #3 of (permalink) Old 02-04-2007, 03:09 PM Thread Starter
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Re: My jeep is cold and will not start

When it fires it does not crank and she will not fire again. Yep 45 degrees is weird. I think it is telling me to move to the beach. Nissan don't get the garage anyhow I don't have a garage darnit or my jeep would be in it. I guess I need to update sine the Nissan is dead and gone.
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post #4 of (permalink) Old 02-04-2007, 03:25 PM
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Re: My jeep is cold and will not start

Ok, to clarify:
Crank
Fire
Die
No Crank,
Correct?

How long until it cranks again, or do you need to jump it?
Check the battery volts, 12 or 13? If less, get a new battery, it may not be the xact problem, but it will be later [img]/ubbthreads/images/graemlins/smile.gif[/img]
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post #5 of (permalink) Old 02-04-2007, 03:36 PM Thread Starter
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Re: My jeep is cold and will not start

To Clarify

Turn key spins and fires does not crank Hasn't in two weeks of cold.

Does not fire anymore.

Fired this past Wed. however did not crank.

Tried jumping off today to eliminate Battery prob. No fire just spin.

Battery Voltage 12.99 volts
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post #6 of (permalink) Old 02-04-2007, 06:52 PM Thread Starter
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Re: My jeep is cold and will not start

She lives again!!!!

Only thing I did different was give her two pump on the skinny pedal this time instead of one and she fired and came to life as usual.
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post #7 of (permalink) Old 02-04-2007, 06:59 PM
 
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Re: My jeep is cold and will not start

I am totally confused! How can a jeep fire if it does not crank? what are you trying to say? lets clarify some stuff

Cranking-process of engine turning over via the starter, preceds fireing.

Firing-engine cylinders start to ignite but starter is still turning. preceds running

Sooo The jeep has to turn over, or the starter has to spin in order for the engine to fire. Whats going on? the jeep wont even crank, or it will crank but will not fire? If it cranks, check your spark and fuel, find out whats missing-good spark, or fuel to the carb, that wil help isolate the problem.
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post #8 of (permalink) Old 02-04-2007, 07:00 PM
 
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Re: My jeep is cold and will not start

ok, looks like you posted while i was typing my response.
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post #9 of (permalink) Old 02-05-2007, 05:56 AM
 
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Re: My jeep is cold and will not start

[ QUOTE ]
She lives again!!!!

Only thing I did different was give her two pump on the skinny pedal this time instead of one and she fired and came to life as usual.

[/ QUOTE ]

In the world of fuel injection, people with carbs forget this step. I do myself as everything I own except, the jeep, is FI and don't need an extra squirt.

At times I find myself pumping the accelerator with a FI just because...
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post #10 of (permalink) Old 02-05-2007, 08:32 AM
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Re: My jeep is cold and will not start

[ QUOTE ]
This is reeally getting old as it has been cold here for the last three weeks and I can't drive my jeep...

[/ QUOTE ]

It gets cold in Alabama, like you have to put on a sweater? One thing I'd do is take a look at the quality of the spark when the weather dips cold, and the humidity goes up. The electrical system could be compromised. I'd also clean the battery terminals and the battery cable connectors and the grounds. When it's cold the ability for the battery to start a vehicle is compromised. The spark isn't as strong and the starter motor doesn't spin the engine as fast. That all adds up to problems starting the engine, even if the fuel deliver system is in perfect working order. [img]/ubbthreads/images/graemlins/40BEER.gif[/img]
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