Ford 7.3L Power Stroke (1999-2003) :: Cruise Control Wouldn't Turn Off
Dec 13, 2016
So the PO tells me he was flying down the highway and went to cancel his cruise control and it wouldn't turn off. He claims he made it to the shoulder of the highway and killed the ignition. When he restarted the truck is was turned off and it hasn't been used since. I tried to use it yesterday but couldn't get it to work?
So I do the search and find out that the deactivation switch is most likely the issue. I just picked up a new one today and was curious if it is just a R & R thing or if it needs to be bleed off or something? Is there a need to test it or just change it out? Sound like something that would cause these issues?
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This has happened 3 or 4 times now while driving down the road. Just cruising down the road the CC will just cut out. I'll hit the "set accel" button on the wheel and all is good again until it randomly decides to do it again.
The only thing I've changed recently is the rear end speed sensor to cure the ABS light. I wouldn't/didn't think this would have any effect on the cruise control, but IDK, maybe I'll put the original one back in and test it.
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Cruise just stopped working. The fuses all check out ok. What would be the next simplest thing that I could check before turning the problem over to a mechanic?
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I have a 2001 7.3 that recently had a throttle position sensor issue I replaced the sensor 4 days ago and my truck ran like new. Until last night I shut my truck off and went to start it up a few seconds later and it would crank continually but wouldn't turn over so I went for the obvious and replaced the cam sensor but that didn't change anything. My scanner is throwing a waste gate fail code.
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RPM's are dropping way off when coasting downhill while towing (as if the motor shut down), CC is on and maintaining desired speed. When at the bottom of the hill, all of a sudden, with a big bang(in the motor) the rpm's have came back up and you drive on down the road as normal. This seems to happen only when towing. "99 F250 7.3 I haven't pulled any codes as of yet. Whats happening?
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I have a 2001 f350 7.3 powerstroke electric shift 4x4 auto trans, truck cruise control just quit, no illumination at dash, when switched on, checked all fuses they are good, owners manual doesn't say much...
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Airbag light flashes on dash and then stays on. Cruise control and horn wont work. I cant find a blown fuse.
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I was driving today and my cruise control light came on and wouldn't turn off. i vagcom'd the car and a code came up which was:
Cruise control switch (E45): Implausable signal
P1569 - 35 - 10 ---- Intermittent
I tried clearing it but it would but the light remains on. I noticed that when i hit the RES button on the stalk, the light goes away and when that when I scanned the car and held the RES button the code would come back. My cruise control also stopped working.
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OK, so a friend's F150 just went up in flames in his driveway and he told me that the problem was the hot link behind a plastic/ rubber barrier at the main brake cylinder. I had a recall notice on my old truck but since I left the US and took the truck I never paid much attention to it, thinking typical overkill. Now I already heard from another buddy who caught lit brake fluid dripping onto the front tire and got the fire out before it spread and looked up the info today. Looks like our trucks are affected. Best to unplug the harness that goes into the brake master cylinder will prevent this problem from occurring? I never use cruise where I am, the roads are too small and slow.
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2002 f250 7.3l diesel...
I got a new radiator and the tranny fluid was the worst the mechanic had ever seen. He serviced it and warned me that it might not be long for this world. I broke my flexplate and so I had to pull the tranny, and I decided to throw a new torque converter in because it was giving g me symptoms like a broken sprag( it wouldn't rev up or do a brake stand in gear, therefore slow takeoffs).
I was recommended to replace the tranny, I decided I could do the job again down the road if I needed to. About two thousand miles down the road I had a hard shift going from overdrive down to get up a hill and about 10 miles later the truck started slowing down....I couldn't give it enough pedal to keep it going and the engine sounded rough.
I pulled over and checked fluids and everything was fine, truck idled fine, bright red tranny fluid not burnt at all. Pulled on to the road again and it pulled fine until about 40 mph and it wouldn't go any faster. I got it towed home and ordered up a tranny from Ford figuring it must be toast, but I thought I'd throw it out to the forum to see if there is any other troubleshooting I can do before I install the new one in case it is some other problem or some electrical harness or something, or if that is a pretty standard reaction to a fried tranny.
Engine runs good at idle, shifts perfectly to drive and reverse, drives forward and back(I'm very hesitant to drive it out of the driveway in case I can't get it back in). Only happened two times before I decided to tow it. Temps looked fine on the gauges, fluid was a little overfilled in the tranny, but again, not hot or burnt.
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Just recently i have noticed my truck acting up. the other day at about 10 to 20 mph i made a 90 degree turn and noticed my steering wheel wouldn't return but i had to bring it back. than this morning the same thing happened. I made a 90 degree left hand turn and it happened again. the truck wanted to keep going left but i kept turning right. it almost feels like my power steering pump is going out. The pump was changed about 4 years 90k miles ago. I'm curious to see what others have to say. What could it be????
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So I'm motoring along a country road with the cruise set at 50 mph and the truck starts to increase speed.
Tap the brake - nothing happens. I'm up to 65 mph! Knock it into neutral and it revs to around 3,500 rpms and then it unsticks.
What in the world is going on with that? After thinking on it, a few miles farther on and I set the cruise again.
It began immediately picking up speed. I hit the brake and nothing happened. Then I hit the off button and nothing happened.
So again I bumped it up into neutral and it did the same thing - revved for a moment and then kicked off.
The dealership where I get my service done can't get to it for several days. So I'm checking in the meanwhile to see possibilities to identify a cause.
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My issue can be while driving with cruise on, or accelerating, the truck just losses power, then recovers. At idle, the rpm can, but not always, fluctuate.
There is no "misfire" when it happens, but it just falls on its face. I have NO diagnostic tools, and my injectors are not stock, so I am unable to unplug my DP.
My thoughts are to unplug the ICP and give that a shot? Meanwhile, I will put in a order for a elm327
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How to fix SES P0670?? I understand there's a whole procedure on checking fault.
P0670:GPCM Glow plug control module control line failure. Open/grounded circuit, open/shorted GPCM, failed PCM
But how did you resolve problem? replaced GPCM, found open circuit, short --if so where?-- or replaced with updated harness.
(4C3Z-12B568-AA connector upgrade kit as in picture)???
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So, all of a sudden, my cruise control won't turn on.
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I had a nice level straight stretch in front of me and engaged the cruise control. No go! I tried a few more times and it still did not engage, even with various button sequences. My thought was that this truck is a computer on wheels. So at the next opportunity I stopped and shutdown the engine, turned the ignition switch OFF and then restarted started the engine (and rebooted the computer). The cruise control works fine!
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I have a 6.7 diesel extcab longbed 4wd with the 3.31 rearend. I have been experiencing a surge primarily told by the boost gauge when using the cruise control unloaded and either or both going up a steady climb in elevation or headwind. It does not surge if I shift down to 5th. Does not occur pulling a load. Still occurs in manual mode and tow-haul mode. Does not occur if your controlling throttle with your foot. I find that it happens at speed of 65-70. It will boost to about 10 pounds then fall to about 3 and will continue this until maybe a hill or change in direction. It does not occur with a tail wind. I took it to the dealer today and ford had a new flash for the pcm and the tcm. Hoping that this would fix it but I don't believe it did.
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Just looking for comments on using the cruise control while towing? and what's the recommended weight for using the tow haul mode. The enclosed trailer I have is about 3300 lbs. taking it across the country empty. 2004 6 liter.
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I've tried everything I can think of to get my cruise control working again to no avail. I have a late 99 with a 6 speed. So far I have checked all the fuses with a multimeter, I've checked continuity from the harness under the dash through the clockspring to the switches, truck does not start without the clutch pushed in so the neutral safety switch works, has the upgraded switch and harness off the master cylinder. the previous owner said the cruise was intermittent about a year after they did the harness and switch recall on it. is there a way to test the harness and switch? I got a 1800 mile round trip coming up in about a week and I am gonna have a sore foot if I cant figure this out.
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Drove it last night around 9pm. Parked it and went to drive it again this morning around 7:30. No cold weather here or rain. Here is what I know: When I turn the key I hear a click (not a repeating click) but the engine doesn't turn over. Batteries have 12.5 volts. I put my trickle charger on them and had full charge after about 3 or 4 minutes. When I turn the key the headlights do not go dim. I put a screw driver across the solenoid on the passenger side fender and got a strong arc. When I do that, I can also hear another click that sounds like its coming from the engine. I tapped the starter a few times with a hammer, but it still wont turn over. I'm guessing bad starter.
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Trying to track down an issue (annoyance) I'm having with my 02 7.3 4x4 excursion. When I get in the truck and turn the key (after waiting for glow plugs) the starter doesn't actually turn over for 1-3 seconds and sometimes up to 5. When the truck does turn over everything works perfect it's just an annoying delay.
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