wrench light?????what does it mean???
New User
Joined: Jul 2004
Posts: 10
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Just had Engine Oil, Transmission Oil, and Coolant flushed/changed by Ford in preparation for a 300mi trip towing a 4500# trailer. 30 minutes into the trip, the Wrench Light came on and I perceived a power loss (kinda like hesitation when accelerating), but no "Failsafe" warning on the message center; also no CEL. I scanned it while on the road, and got no codes. Wrench light resets after key-off, and only comes on with constant (interstate) towing and only after 30mi +/-. It doesn't come on while towing at speeds <50mph through towns or when not towing regardless of miles (even under high throttle demand). Made the trip up and back with no issues other than it seemed like it didn't have enough power to make the Florida hills with the trailer (thank goodness I wasn't in NE GA). Could the fluid changes above have broken chunks loose in the respective systems or does this sound like a sensor issue.
Mileage 80,800; Eng Hrs: 1970; 2005 F350 LB CC 6.0. Had head bolts replaced with OEM at 47K.
Any help appreciated. Thanks,
David
Mileage 80,800; Eng Hrs: 1970; 2005 F350 LB CC 6.0. Had head bolts replaced with OEM at 47K.
Any help appreciated. Thanks,
David
Senior User
Joined: Oct 2004
Posts: 422
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From: N. Carolina
Just had Engine Oil, Transmission Oil, and Coolant flushed/changed by Ford in preparation for a 300mi trip towing a 4500# trailer. 30 minutes into the trip, the Wrench Light came on and I perceived a power loss (kinda like hesitation when accelerating), but no "Failsafe" warning on the message center; also no CEL. I scanned it while on the road, and got no codes. Wrench light resets after key-off, and only comes on with constant (interstate) towing and only after 30mi +/-. It doesn't come on while towing at speeds <50mph through towns or when not towing regardless of miles (even under high throttle demand). Made the trip up and back with no issues other than it seemed like it didn't have enough power to make the Florida hills with the trailer (thank goodness I wasn't in NE GA). Could the fluid changes above have broken chunks loose in the respective systems or does this sound like a sensor issue.
Mileage 80,800; Eng Hrs: 1970; 2005 F350 LB CC 6.0. Had head bolts replaced with OEM at 47K.
Any help appreciated. Thanks,
David
Mileage 80,800; Eng Hrs: 1970; 2005 F350 LB CC 6.0. Had head bolts replaced with OEM at 47K.
Any help appreciated. Thanks,
David
Consider getting an Edge Insight CS and monitor the differences. Either way, it looks like a Oil Cooler & EGR Cooler job is in your future. Sorry ...
New User
Joined: Dec 2008
Posts: 3
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2005 5.4 limp mode...
Just had the 'WRENCH' lite on(limp mode), brought it to the FORD dealer since it really didn't want to go more then about 35.....
So far 1200 and change...
1 throttlebody,plugs... and its fixed. mileage 68905....
So far 1200 and change...
1 throttlebody,plugs... and its fixed. mileage 68905....
Posting Guru
Joined: May 2004
Posts: 1,366
Likes: 2
From: Northern Utah
Try the F150 folks-->2004 - 2008 F150 - Ford Truck Enthusiasts Forums
And good luck
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