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sensor find?


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adiobampro369
User

Nov 13, 2008, 9:03 AM

Post #1 of 11 (1412 views)
post icon sensor find? Sign In

Does anyone know where the radiator sensor is at on a 85 jeep Cherokee. 2.5 liter engine.....its my dads jeep and he cant find it bc ppl tell him different places. thank you


(This post was edited by adiobampro369 on Nov 13, 2008, 9:08 AM)


dmac0923
Enthusiast

Nov 13, 2008, 9:17 AM

Post #2 of 11 (1405 views)
Re: sensor find? Sign In

well i dont believe there is a sensor actually called a radiator sensor.

most vehicles have two sensors in the cooling system.

temp gage sending unit--- like name implies....tells the gauge in the dash what to display
coolant temp sensor---tells the computer the operating temp helps with cold/hot idle

i have seen some higher end/newer models with a sensor in the coolant overflow bottle/reservoir that displays an idiot light on the dash if your low on coolant.
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 13, 2008, 9:17 AM

Post #3 of 11 (1405 views)
Re: sensor find? Sign In

Just what sensor are you looking for?

T



adiobampro369
User

Nov 13, 2008, 9:34 AM

Post #4 of 11 (1401 views)
Re: sensor find? Sign In

Would ya'll happen to know where to find those two suggestions you gave me? he said on the dash the temp gauge reads when he first starts it up but then it jumps back down. The problem he is having is his radiator is pushing water into the reservoir and is over heating and wants to know what part to replace and where it is located?


dmac0923
Enthusiast

Nov 13, 2008, 10:04 AM

Post #5 of 11 (1400 views)
Re: sensor find? Sign In

yea hold on, i used to have a 95 wrangler with the 2.5 engine. ill pull my chiltons manual and see if they show a pic. Jeep didnt change their engines (2.5 & 4.0) for YEARS.
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1


dmac0923
Enthusiast

Nov 13, 2008, 10:11 AM

Post #6 of 11 (1399 views)
Re: sensor find? Sign In

ok the temperature sending unit on the 2.5 4cyl is screwed into the cylinder head and should have 1 wire attached to the top of it at.

from the picture it looks like its on the drivers side rear of the motor
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1


dmac0923
Enthusiast

Nov 13, 2008, 10:15 AM

Post #7 of 11 (1398 views)
Re: sensor find? Sign In

i cant find it in the manual but if i remember correctly, there was a coolant temp sensor screwed into the thermostat housing. If yours isnt equipped youll probably just find a plugged "bung" for the sensor
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 13, 2008, 10:23 AM

Post #8 of 11 (1396 views)
Re: sensor find? Sign In


In Reply To
The problem he is having is his radiator is pushing water into the reservoir and is over heating and wants to know what part to replace and where it is located?



Oh, oh! Trouble with that is it suggests head gasket and combustion gasses are entering cooling system. Gauge readings may be correct for the condition - arggh!

T



dmac0923
Enthusiast

Nov 13, 2008, 10:36 AM

Post #9 of 11 (1393 views)
Re: sensor find? Sign In

whoops didnt read his post from start to finish............yea youve got a little more then just replacing sensors on your hands.

fortunately for you its a pushrod engine....no overhead cams to deal with. its a pretty straight forward repair on this engine and you also have plent of room in the engine compartment to work. pick up a repair manual at your local shop....im looking at mine infront of me and it has pretty decent instructions.
__________________________________________________
2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1


adiobampro369
User

Nov 13, 2008, 10:49 AM

Post #10 of 11 (1393 views)
Re: sensor find? Sign In

thank you...it was plugged in the back of the motor. the wire got cut somehow and thats what it was...but my dad said he has the same book and your right it wasnt in there. do you know if he was to connect that wire and replace the thermostat, would it keep it from over heating? that was the problem he was having. but thank you again for the help.


way2old
Veteran / Moderator
way2old profile image

Nov 13, 2008, 12:08 PM

Post #11 of 11 (1388 views)
Re: sensor find? Sign In

Replacing the thermostat is the least expensive of what you can do now. It is possible the thermostat is stuck shut causing the overflow and overheating. If it still does it after thermostat replacement, the cost will go up. Good luck.



Being way2old is why I need help from younger minds






 
 
 






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