Also be sure to run a + ground when running flux core and a - ground when running hard wire

 

So yesterday i got bored and decided to take some stuff apart inside just to see what it all looks like and how it goes. I took out the center thing that has the cig lighter, fog light switch, etc.
(this is my first time uploading pics.. hope it works)



And then I looked closely and saw this guy chillin there not doing much...
I circled it in red



Anyone know what this plug is for??

 

prob for the extended idle switch, which you don't have


you'll likely find a lot of connectors that don't attach to anything. Jeep used standardized harnesses over a wide range of vehicle options

 

Gotcha. Thanks

 

okay guys, so its about 100 degrees here in northern il every day and i just noticed my jeep temp starts raising up pretty quickly at idle like at stoplights and whatnot, just put in a 180deg thermo and drilled a decent lil hole in it and it still raises like that, what could it be? i have a 4.0 h.o but don't have an aux electric fan, could that be the issue? it didnt seem to do it when i was on my way home from buying it, thanks in advance!

 

sounds normal to me. And i'd install a aux fan soon - very necessary

 

Grab all coolant hoses when engine is warm. If one feels cooler thermostat not working. Engine warm take rolled up paper and shove into fan while engine running. If you can stop the fan, bad fan clutch. Check water pump hole. Park on incline, radiator at top and rebleed system. Could be temp sensor, head gasket or gauge

 

i just put a new tstat in, wp looked fine, and i heard driving w the rad cap off to the safety teeth for a few bleeds the system also, its what race cars do, head gaskets fine oil looks great and no white smoke gauge seems to be working properly too so imma try to bleed it, get that fan, and the ole paper trick

 

what do you do about this when wheelin then??

 

Does anyone know if the 17" wheel/tire package from 2012 wrangler will fit on 2000 Cherokee without any issues? Replaced tires on wrangler and need new ones on cherokee so figure why not.

 

No. Different bolt pattern.

 

whats the best way to get nasty sludge out of a coolant resivour or however you spell it lol, i have mine in the bathtub full of super hot water, not the bathtub the bottle is full of it lol

 

If doing a coolant pressure test, how much pressure should be put in

 

A little bleach or degreaser would probably work, along with that hot water.

 

thanks for all the help guys im new to the 4.0, i had the 2.8 in my old jeep (junk), betsy seems to be runnin a good solid temp now after a coolant resivour flush and fill, then getting that fan tomorrow so thatll do her even more justice, you guys are awesome!