1982 Ford F-150 no trans fluid flow

ATHEISTJIM

MEMBER
1982 FORD F-150

Transmission problem
1982 Ford F150 V8 Four Wheel Drive Automatic 389tho miles

gday I have just had a C6 trans overhauled and fitted it into ford f150 1982, I put brand new trans hose to a brand new trans cooler and a dacco 2500 converter.I have drove it for 1 week and then it started to make a noise like low power steering sound that got a higher pitch at higher revs? I got home and took the lines off and started it on stands, went through the gears and nothing came out? Obviously not pumping fluid it hasnt even pumped fluid into the new trans cooler for the whole week I have driven it?Although haveng a nice hard shift into each gear all week and stalling to 2500 and all running just as it should you would never have known it wasnt pumping through the cooler until it made the noise? My question is, how can the trans run beitiful for a week not pumping fluid through the lines to the cooler and what would create the pump to not pump when the converter is correctly installed and lined up?

7 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

I can only imagine that there has been a failure of some kind in the trans on start up which has blocked the high pressure side, stopping the fluid from entering the cooler lines, giving enough presser internally to drive the transmission untill the pump has also failed, (picked up foreign matter due to initial failure. Only a pull down and inspection will tell, (i would be intersted to know what exactly failed when it is dismantled)

Mark (mhpautos)

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Tuesday, April 8th, 2008 AT 7:20 AM

ATHEISTJIM

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4 POSTS

Trans has been completely pulled down again today and was told there is no problems with the trans, was told that the converter was blown? And with a spare spline was shown that there was no risistance when turning the inserted spline? And when asked how could this effect the lack of fluid output I was not given an answer, also he tried to show me how it was possible that the pipe inserted to the case for the trans line output could have been inserted to deep therefore blocking the flow of fluid.I quickly dissmised this having the empty case infront of us and physicly showing him how stupid that theory was especialy from a trans specialist!So having the trans totaly pulled down and aparently showing no signs of blocking or damage to the internals of the trans I am expected to accept that the trans was totaly fine although not pumping fluid through the lines and for no reason the converter just blew for no reason and nothing is responsible for this? And after paying $1000 for a total rebuild I have to also buy a new converter and once again pay these people to fully strip down and fully clean all fluid from trans and then re-assemble the trans! This also includes the job I have of pulling trans from my ute and putting it back in! So in all I rebuilt the trans, drove 1 week in wich time trans wasnt pumping through cooling system in which nothing has caused the trans to do so, then the converter just dies because it did and this just happened because it just did ! That defies any human logic and including time off of work has cost me $4000

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Tuesday, April 8th, 2008 AT 9:44 AM

ATHEISTJIM

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4 POSTS

There must be a solid explination for the lack of fluid output flow that relates to re-assembling of the trans that I am not being told from these people so I have to once again pay them to strip down, clean and re assemble the trans! It was rebuilt at a proffesional trans shop you just do not expect these problems from proffesionals! I have done alot of transmissions in my time all with good success and never had these drama`s before!And am at the point of going to the workshop and literaly turning the whole place totaly upside down! With a smile the whole time!This will be the 3rd week they have had it, that must be the longest trans rebuild in the history of mankind!

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Tuesday, April 8th, 2008 AT 9:57 AM

MHPAUTOS

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31,937 POSTS

G'Day there,

Yes I feel that they are not telling you the full story, but there is not much you can do, I feel that there has been a failure in the trans and they are not letting on with the truth.

Good luck with it.

Mark (mhpautos)

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Wednesday, April 9th, 2008 AT 1:14 AM

PEAR69

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1,482 POSTS

The ONLY way the transmission would-shift through the gears- and not have any fluid running through the cooler- is if the valvebody gasket was installed backwards. The pump was working--if not then the tranny will not shift at all. A "blocked solid" cooler line--with no fluid flow--and a properly installed valvebody gasket--would have lasted about 30 seconds or so--then the pressure inside of the tranny would have blown the front seal--exploding all of the tranny fluid out. If you ever are going to junk a car with an automatic tranny, just pinch off one of the cooler lines--you'll see--it's kinda cool to be honest.

BTW A C6 tranny is a three speed and very simple to rebuild---a pro tranny shop would never let a tranny leave without checking the line pressure and the shift point pressures first.