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  #1  
Old 11-25-2010, 09:50 AM
tmbrockett tmbrockett is offline
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Default Random Plug under the truck

Hey everyone i have two questions-
1.) When i start the truck in the morning when its cold, it will bounce between 500 and a 1000 RPM's for a couple of seconds, then it goes up to about 1400 for a couple of seconds, and then it will settle down at 500 RPM's. after all of this, about 20-30 seconds, it idles fine at 500 RPM's

2.) i was greasing up my ball joints the other day and noticed a random plug hanging under the radiator. It looked like i could plug an extension cord in? what is that and what is it used for?

thanks for the help and happy thanksgiving

The truck is a 2001 XLT 4.0 liter 4x4
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  #2  
Old 11-25-2010, 09:57 AM
terryduanemiller terryduanemiller is offline
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Default Re: Random Plug under the truck

Diesel's have electric heaters to pre warm the engine, someone could have install an oil heater on your gas engine? .... engine idles up on cold start cause of choke, could have a vacuum leak causing serge...
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  #3  
Old 11-25-2010, 10:02 AM
tmbrockett tmbrockett is offline
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Default Re: Random Plug under the truck

what should i check as far as vaccums and hoses and all that?

could it have anything to do with the spark plugs or fuel filter?
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2001 Ford Ranger XLT 4X4
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Cool..I must warn you, Last time I heard the word contracted, it burned when I went pee
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  #4  
Old 11-25-2010, 10:09 AM
STL STL is offline
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Default Re: Random Plug under the truck

Some add engine block heaters in cold climate areas. They are standard in canada.
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  #5  
Old 11-25-2010, 10:11 AM
DangerRangerII DangerRangerII is offline
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Default Re: Random Plug under the truck

Block heater is my guess too, my sisters ranger had one.
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  #6  
Old 11-25-2010, 08:19 PM
tmbrockett tmbrockett is offline
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Default Re: Random Plug under the truck

thanks for the input guys. Here in Topeka we can have some nasty winters. Temperatures will get down into the single digits with windchills in the negatives. Should i be using this tool? if so, how? i heard somewhere you have to plug it in for 4 hours before you start the truck?
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2001 Ford Ranger XLT 4X4
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Quote:
Originally Posted by Clinton View Post
Cool..I must warn you, Last time I heard the word contracted, it burned when I went pee
http://500px.com/tmbrockett
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  #7  
Old 11-26-2010, 06:55 AM
STL STL is offline
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Default Re: Random Plug under the truck

Just run a extension cord out to the truck. Plug the end coming off the truck in. If you have a garage run it into there.

Usually they leave it plugged in all night. If you want easy starting ,just plug it in when you stop for the night. When the engine is plugged in at normal operating temp it will keep more heat than can ever be achieved plugging in an engine at cold temp.
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  #8  
Old 11-30-2010, 12:53 PM
Giangrosso Giangrosso is offline
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Default Re: Random Plug under the truck

I would just plug it in before i went to sleep but the warmer the engine is the better it will work
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  #9  
Old 12-29-2010, 05:15 PM
KraziIvan KraziIvan is offline
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Default Re: Random Plug under the truck

Big thing......... Dont forget to unplug it in the morning! You will look funny trailing a length of extension cord behind you. :-)
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  #10  
Old 01-03-2011, 08:23 AM
MNBen MNBen is offline
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Default Re: Random Plug under the truck

In addition to the block heater there may also be a heated blanket around you battery as in my case. My two heaters use the same electrical plug. There are different types of engine heaters, Some may be magnetically attach to the side of the block or oil pan, some are a heating element that fit in place of one of the frost plugs, and some could be inline with the radiator fluid lines. Choose images on google and you will see the different types.

Did you resolve your idle issue yet?
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  #11  
Old 01-03-2011, 09:00 AM
tmbrockett tmbrockett is offline
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Default Re: Random Plug under the truck

nope not yet
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2001 Ford Ranger XLT 4X4
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Quote:
Originally Posted by Clinton View Post
Cool..I must warn you, Last time I heard the word contracted, it burned when I went pee
http://500px.com/tmbrockett
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