Fan Clutch Won't Disengage

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Blue_Smoke13

Junior Member
Joined
Jan 7, 2017
Posts
9
Reaction score
2
Ram Year
2005
Engine
4.7 Magnum
Yesterday I replaced the Water Pump and Fan Clutch on my '05 4.7.

At idle, everything sounds fine. When driving it's a different story. When the engine hits >2500 RPMs, sounds like I'm in the cockpit of a C-130. There is loss of power, and fan speed seems to be dependent on engine RPM, regardless of the gear or temperature. New Fan Clutch is stiff while cold.

What steps do I need to take to correct this issue?
 

MarkV

Senior Member
Joined
Nov 24, 2014
Posts
1,244
Reaction score
520
Location
Ontario, Canada
Ram Year
2003
Engine
4.7 Magnum V8 NOW with Moose Power
Yesterday I replaced the Water Pump and Fan Clutch on my '05 4.7.

At idle, everything sounds fine. When driving it's a different story. When the engine hits >2500 RPMs, sounds like I'm in the cockpit of a C-130. There is loss of power, and fan speed seems to be dependent on engine RPM, regardless of the gear or temperature. New Fan Clutch is stiff while cold.

What steps do I need to take to correct this issue?
Might be a bad fan clutch....

Sent from my SM-G900F/T/I/M/P/W8 using Tapatalk
 
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Blue_Smoke13

Junior Member
Joined
Jan 7, 2017
Posts
9
Reaction score
2
Ram Year
2005
Engine
4.7 Magnum
I pulled the fan Assembly off, and the jet in my driveway disappeared.

New felt a little stiffer than the old, not a huge difference. I think the thermostat on the fan wasn't engaging. Swapped the new one out for old and returned it.

Problem solved for now, I guess.
 

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