So we purchased a used 2007 F550 6.0L 4x4 truck over a month ago, a week later, it started suddenly banging into drive and reverse after shifting the lever.
Then it developed a long delay before the bang after you move the shifter.. this was all within a couple days.
Then it started to disable Overdrive and the tow/haul light would flash, restart the truck and its fine for overdrive until 1 mile or 100 miles later.
Took the truck into the trans shop in NJ, all they do are transmissions. Truck was setting a code, i had nothing to read it at that point though. Shop said it was a ebc solenoid? and needed a "pump". So $700 in parts later and $750 for labor plus tax, they replaced on my receipt "pump assembly". WTF is that part?
I have dissasembled auto fwd transmissions in the last couple years, isnt the Torque converter your "pump" , and i know they have a pump shaft but your talking a fairly small part and they dont cost that much.
How would the shop know its a pump assembly if they told me this before they pulled the transmission from the truck?
Before i picked it up, the guy said that the trans still banks going into reverse, but after you do that once, it doesnt do it after that unless its turned off... sounds like a solenoid still to me right? I was told most of the solenoids on the 5r110 trans can be swapped out from the bottom with taking off the pan?
Anyway, within the first 100 miles, the truck still bangs in drive at a light, hit the gas and it seems like the truck slips back into pure neutral, and when you rev it some, it BANGS back into drive and starts to move.... so what did they actually fix? no engine light has triggered yet for me to check but its BS it costs that much and its nearly still the same as before?
They said they'd recommend a full trans rebuild since the solenoids or pump assembly didnt fix it in the range of 3k+ easy, thats on top of what i just paid :/
Truck has 54k miles on a 2007 diesel F550 crew cab
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