Heating/cooling issue...

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

MoparMagic'00

Senior Member
Joined
May 17, 2014
Posts
534
Reaction score
126
Location
Arkansas
Ram Year
2000
Engine
5.2 Magnum
Ok rundown of the rig 2000 1500 with 5.2 auto

Replaced:

Thermostat 195
Radiator
Heater core
Water pump
Rad cap 16 psi
Clutch fan


Issue is that it will not get hot enough to open tstat with clutch fan.. When my clutch fan went out i threw an e fan (no clue on specs but off some 4cly most likely) and obviously could adjust when it kicked on and off.. So tstat was confirmed to open using that method. Now warmer temps are in store ive replaced the clutch fan and again wont heat enough to open stat even with minimal air flow idling in park... Any suggestions? Seems sonething is causing it to over cool..
 

MagSport

Senior Member
Joined
Mar 10, 2014
Posts
1,257
Reaction score
514
Location
South Carolina
Ram Year
1999
Engine
5.9
It sounds like the fan clutch might be bad. The clutch is supposed to "disengage" or not spin as fast as it would right? So if it's not disengaging it's spinning at full speed all the time, causing it to over cool.
 

dodge dude94

Millennial Boomer
Joined
Sep 5, 2013
Posts
27,745
Reaction score
6,429
Location
East Texas
Ram Year
1998 Ram 1500
Engine
5.9 Magnum
Fan clutch might be over cooling, t-stat might not be actually closing.
 

rowdyram

Senior Member
Joined
Feb 6, 2014
Posts
504
Reaction score
219
Ram Year
1996
Engine
magnum 5.9
What are you using to verify temp? Is the upper hose warm after driving? How warm does it get?
 
OP
OP
MoparMagic'00

MoparMagic'00

Senior Member
Joined
May 17, 2014
Posts
534
Reaction score
126
Location
Arkansas
Ram Year
2000
Engine
5.2 Magnum
As far as tstat opening i use the old tried and true.. Keep checking pressure in upper hose until it releases stat opening) fan clutch is new has some resistance when cold doesnt just free spin. And when i had the efan on only it was opening approx correct temp on gauge.. All hoses warm after driving.
 

dodge dude94

Millennial Boomer
Joined
Sep 5, 2013
Posts
27,745
Reaction score
6,429
Location
East Texas
Ram Year
1998 Ram 1500
Engine
5.9 Magnum
Have you tried dumping the clutch fan again?




:D
 
OP
OP
MoparMagic'00

MoparMagic'00

Senior Member
Joined
May 17, 2014
Posts
534
Reaction score
126
Location
Arkansas
Ram Year
2000
Engine
5.2 Magnum
Yea if i did that it would obviously open again.. The e fan i have wont move enough air to keep cool in summer at lights and so forth and local junk yard wants $100 for a cherokee e fan used... Said f that lol
 
Back
Top