Ornery
Well-Known Member
- Joined
- October 7, 2012
- Messages
- 423
- Reaction score
- 3
- City, State
- Northeast Ohio
- Year, Model & Trim Level
- 2006 Explorer EB V8 4WD
I've got a service manual for this '06, 4.6L Eddie Bauer, but I'm hoping somebody else has been down this road before, and can save me some time.
Occasionally, the fan radiator fan runs full speed for no reason. The first time I noticed this was on a cold start in the middle of winter. Fan would wind up to full speed right at start up, then wind down within 30 seconds. 30 seconds later it would speed up, and slow down shortly after. Not sure, but I think it eventually settled down as it warmed up.
The other day when it was rather hot, it went to full speed as I accelerated, then slowed down as the RPMs went down and the truck was cruising. Did it over and over every time I pulled away from a stop. After turning it off for about fifteen minutes, it didn't do it again after restarting and taking off again. Next day, it started doing the same thing all over.
Coolant level is topped off, and hasn't been low. I'm about ready to start throwing parts at it, but the only one I can think of is the coolant temperature sensor. Any others? Any tests to run? I'll check for codes, but there is no light on the dash, and hasn't been one for years.
TIA, John
Occasionally, the fan radiator fan runs full speed for no reason. The first time I noticed this was on a cold start in the middle of winter. Fan would wind up to full speed right at start up, then wind down within 30 seconds. 30 seconds later it would speed up, and slow down shortly after. Not sure, but I think it eventually settled down as it warmed up.
The other day when it was rather hot, it went to full speed as I accelerated, then slowed down as the RPMs went down and the truck was cruising. Did it over and over every time I pulled away from a stop. After turning it off for about fifteen minutes, it didn't do it again after restarting and taking off again. Next day, it started doing the same thing all over.
Coolant level is topped off, and hasn't been low. I'm about ready to start throwing parts at it, but the only one I can think of is the coolant temperature sensor. Any others? Any tests to run? I'll check for codes, but there is no light on the dash, and hasn't been one for years.
TIA, John