Trans Fluid?

[bvantiem]

Today I was going to get my trans flushed at a near by quick oil change and when they hooked up the machine and I started my truck and the new oil wasnt getting sucked in like it was supposed to. The guy wasnt sure why it wasnt working so in the end I didnt get it flushed. On Monday I plan on taking it to my normal mechanic that does all the work. What would cause this to happen?

[TheWanderer]

I can't answer your question as to 'why' this happened, but I would be leary of any quick lube place doing a fluid change on a TorqShift and would question heavily what fluid they are using.

Aside from the ultra expensive dealer item, we've had great success with the Wynn's Multi in our shop in customers trucks that are moslty contractors units.

[BDSford03]

only AMSOIL or Motorcraft make the mercon SP

[cartmanea]

Originally Posted by BDSford03

only AMSOIL or Motorcraft make the mercon SP

Only Motorcraft makes Mercon SP. Amsoil makes one that they say is equivalent. I'll stick with SP, my dad runs the Amsoil and tows heavy with no issues.

[BDSford03]

AMSOIL makes a low viscosity transfluid

AMSOIL - Synthetic Fuel Efficient Automatic Transmission Fluid (ATL)

AMSOIL Synthetic Fuel Efficient Automatic Transmission Fluid is recommended for automatic transmissions and other applications requiring DEXRON® VI, MERCON® LV, SP or Toyota WS.

I run amsoil front to back (axles, engine, trans)

[cartmanea]

I know they make one for Mercon SP applications, but it doesn't match the specs exactly as it covers multiple fluids.

[BDSford03]

true, i still run it and havent had any problems

[CHARRC]

Originally Posted by bvantiem

Today I was going to get my trans flushed at a near by quick oil change and when they hooked up the machine and I started my truck and the new oil wasnt getting sucked in like it was supposed to. The guy wasnt sure why it wasnt working so in the end I didnt get it flushed. On Monday I plan on taking it to my normal mechanic that does all the work. What would cause this to happen?

To answer your question: Fords are notorious for having low line pressure. Need to have some idle up the truck while flush machine is running.

[cartmanea]

If he was connecting to the cooler lines, there is a thermostat and it has to be up to operating temps for them to flow. Take it to the dealer for a flush, or just drain the pan and refill with 7-8 quarts. I do the drain/refill every 15-20k.