Truck not moving after pulling
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Truck not moving after pulling
I have a 2001 7.3 F350 and after I’ve pulled a load it won’t move. As long as I’m in drive it’s fine, but if I put it in reverse it won’t move at all, and if I put it back in drive it won’t move until it sits for about an hour to cool off. Also when pulling any steep terrain it will overheat and I’ll have to stop and let it cool down. I usually pull a 37ft travel trailer, but it had the same issues with my smaller 32ft lite trailer. I’ve had the PCM, ICP, and EBP sensor replaced. Transmission was rebuilt about 3 years ago. Getting new enjectors and probably a transmission cooler put on in a few weeks. Any idea what could be causeing it to do this?
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From: Lake Hartwell, GA
What are the miles on the transmission and what are the miles on the truck?
Have you noticed fluid puking out of the transmission when backing up before?
Do you have the original transmission cooler or the 6.0 upgraded cooler?
When was the last time the fluid was changed in the transmission?
Since John asked the obvious one, how did the transmission fluid look and smell?
Have you noticed fluid puking out of the transmission when backing up before?
Do you have the original transmission cooler or the 6.0 upgraded cooler?
When was the last time the fluid was changed in the transmission?
Since John asked the obvious one, how did the transmission fluid look and smell?
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Truck has about 212,000 miles. Transmission was rebuilt about 3 years ago. Not leaking fluid and the fluid level is fine and it looks and smells fine. We weren’t sure about the cooler so checked it today and it appears to be the newer one but we are getting it replaced in a few weeks. We got the truck April 2017 so we don’t know history past that except what we were told.
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From: Douglassville, PA
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It’s my husbands truck so I’m trying to do the best interpretation of everything I can. It has a panel with gauges on the side, We have gauges for the oil temp, ext temp, trans temp, and boost but boost gauge doesn’t work. The oil and ext ones get hot but the trans stays good. If you’re using the truck for every day use it’s fine. It only does this after pulling the trailer, but that’s what we have the truck for is to pull our camper.
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Joined: Mar 2014
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From: Douglassville, PA
OK, now I get it. Heat is a relative thing so what you're calling 'hot' needs to be specific. My recollection is that 250* oil temp is getting there but OK, if I'm off someone please correct that. EGT's are good to go at 1250* all day long (so they say, I want them closer to 1100* steady) and trans is good to 220 long term (once again I prefer to stay to the safe side of that).
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Joined: Mar 2014
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From: Douglassville, PA
What is your water temp doing? There is an oil cooler and oil should be just a little over water temp. If water temps are good but oil is high I'd suspect the oil cooler. And, of course, this does not address your 'not moving' issue, I can't help with that.
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Joined: Dec 2010
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From: Temperance, MI
Sounds to me like the line pressure bolts are backed out just enough that when you work the trans with a heavy load it gets warmer and may just be enough heat to swell the metal while in reverse. A lot of guys have had their transmissions rebuilt because of these bolts, including myself... the bolts are obviously in the trans, drain the fluid, drop the pan, pull the valve body off to expose the bolts you're looking for. I don't have a picture of the bolts but I'm sure someone else does and can post it.
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