Ford F-150 (2004-2008) :: 2007 5.4L V8 - Overheats At Times When At Stop
Jun 15, 2017
3 months ago.. I had my fan clutch replaced, along with alternator.. a few coils.. a belt and an oil change. While installing fan clutch the shop accidentally poked a hole in radiator so they got a new one ( After Market) and replaced it. After leaving the shop, I noticed the fan clutch was not rotating smoothly, it had a considerable wobble to it, so took it back and it was replaced..new one did same things.. so it was replaced again. Truck seemed fine after the 3rd one was installed, and then after a a 3 hour drive.. i pulled over to gas station, and while truck was at idle in park.. it started to run hot. Raised hood, there was no visible coolant in holding tank on side, so after a while.. i took cap off and as I released it... coolant started to bubble back into holding tank. I then started truck up.. it was fine rest of way home.
Over next few weeks, this happened 4 times.. ac will be on, truck sitting still at red light etc.. and truck will start to run hot. So i had a new thermostat installed, and also a new water pump. Took it to a guy who runs a shop i know and also had system vacuumed. ( it was burped prior). Thought we had it fixed.. NOPE.. did it again yesterday. So truck has had new fan clutch, new thermostat, new water pump, new coolant, new radiator.. and it still only runs hot if at idle.. and it wont do it all the time.. but about once a week.. it will... and it will go over to red.. and ill shut it off and after about 10 min.. turn back on and continue on my way.. What I noticed..and this may be a key piece of info to someone who may know what is going on... it seems that the times it has ran hot.. while at idle the fan clutch was off.. and once i reved engine up to 2500-3000 rpms.. I got clutch to engage and bam !!.. truck comes back down to normal temp.. midway on gauge .. AS long as I am driving down road.. no problems.
** Also as a sidenote.. my engine does have a engine coolant temp sensor on it. Part # DY 1025 motorcraft. On some vehicles.. this part tells the fan when to turn on.. not sure if it does on mine. Originally , I took truck in bc fan clutch was staying engaged to much..meaning fan was on all the time. So.. maybe it could be the sensor ?... now all the new fan clutchs that have been put on do not come on like they are suppose to.. work right sometimes.. other times.. truck has to be at high rpms to get it to engage.. not working right all the time at low rpms.
Are their fan clutch relays ?.. I have an electric fan clutch.. This seems to me that this is a fan clutch issue.. and this is the 3rd one on the truck.. came from autozone.. it is the correct one for truck and has a warranty. Mechanic now wants to try going with a ford fan clutch by motorcraft.. 2007 F150 5.4 V8 ...
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I have a 2008 Ford Lariat F150 with 53k miles. The transmission seems like it slips at times. Here's the scenario. When I take off from a standstill and going through the gears at a normal acceleration pace, say I momentarily lighten the acceleration pace then try to resume. At that point, the transmission seems to slip momentarily, then bumps back into the pull mode. It feels like there is slack in the drivetrain until it re-engages, or like the lockup torque converter momentarily releases until the computer has time to react to the accelerator positioner calling for more. One guy said the transmission is, at that point, between two gears... either trying to decide to downshift or to upshift, but you can feel the surge in rpm momentarily until it decides ... then bump and your off and running again. If I push the O/D button, it stops doing it. What I can do? Because the dealer can't seem to get it to act up when they test drive it. It does it fairly regularly on me though.
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Cleaned them all out and still nothing. Then I got to thinking it may be the ESOF motor on the transfer case. Checked to make sure there was power to the plug, which there was. Removed the motor and turned switch, and the motor seemed to be working. Reattached the motor and the 4wd would engage/disengage without problem. Pretty much everywhere I went I would check it and it worked fine . Then all of a sudden it didn't . So I took the motor off, turned selector and it worked fine. No issues yesterday at all.
So, I am not sure if it is the motor going bad or not. Could there be a contact problem? I talked to a mechanic this morning and he told me to drive around with it in 4H for a while because more times than not it doesn't get used enough. I'm just not sure what could be going on...am I missing something?
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Here are the symptoms:
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2) Compressor not coming on, according to mechanic.
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4) Very poor fuel mileage since this started.
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2008 with 120K miles.
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So for the past couple months every time I get on this incline on a freeway transition my temperate gauge spikes to red and the notification center tells me the car is overheating and to pull over a couple seconds later it goes back to normal. This has happened about 7 times now over the past couple months. 07 LS460 just hit 80K miles.
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I just purchased the car a few weeks ago. Horn doesn't work till I press about a dozen times and "get lucky".. Once it hits once I can usually beep about 4 times before losing it. I checked the fuse, looks fine. Haven't found the relay yet.
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