Are transmission cooler lines directional?
The driver side of the radiator based cooler is connected to the front port on the tranny. The rear port on the tranny goes into the secondary cooler which then feeds into the driver side of the radiator based cooler. So, something is backwards.
How hot is too hot for a 4R100 transmission?
Mark Kovalsky The 4R100 is a modern transmission. 215°F will not hurt it.
Can you replace transmission cooler lines with rubber?
You can use rubber hose, but make sure it’s transmission cooler line rated. The pressure is quite low (12-15 psi). Double clamp it or use FI type clamps instead of the worm-drive style.
What happens if you reverse transmission cooler lines?
If you had it reversed, the pump would be trying topush fluid through the bottom of the cooler, up through the cooler, out the top into the bottom of the rad, and up through the rad to the top. More weight to push.
Can I delete transmission cooler lines?
Remove the two transmission cooler lines from the bottom of the radiator. These two lines can be accessed either from underneath the hood or underneath the vehicle. Use the flare nut wrench to remove the lines in the same manner used to remove the lines from the transmission.
What size should transmission cooler lines be?
If possible , use a 3/8″ line . If that is too much trouble , use the factory 5/16″ lines. Larger lines will have less restriction over its length than the smaller lines.
Can I plug the transmission cooler lines on radiator?
Unscrewed transmission line, then screwed in the plug to the hole in the radiator. I assume your transmission cooler lines are 3/8″. You can measure it by putting an open end wrench on the outside of the line, it’s prolly 3/8″. That solves any fluid loss from the radiator.
Does it matter which transmission cooler line goes where?
Generally the higher line on the radiator has fluid going INTO the transmission and the lower one goes back to the transmission, so the higher line has fluid coming out of it and the lower line sucks it back into the transmission.
Where are transmission cooler lines?
Can you use fuel hose for transmission cooling lines?
Beside above, can fuel hose be used for transmission cooling lines? Yes, you can install cheap fuel hose, and it WILL work but the question is, ‘for how long?’ . Transmission cooler hose is noticeably thicker and stiffer, and you can safely assume that the type of rubber used will work long-term with atf.
What size transmission lines do I need for a new cooler?
6 The transmission lines on the 7.3L trucks have crimped hard lines on each end, and a 3/8-inch flex section in the middle. These lines are cut and 3/8- to ½-inch adaptor fittings are installed to mate with the new cooler input fitting size. The new cooler has standard push-on line fittings.
What kind of transmission cooler do I need for a 1999 Ford?
The ’99 to ’03 Fords with the 7.3 are fine for daily driving. However, the OEM cooler can be over-taxed while towing heavy loads and the heat that results can mean issues with the auto trans. Not to worry, there’s a solution, a 7.3 transmission cooler upgrade kit and it involves some top-quality OEM parts.
Is the Ford 4R100 a good transmission for daily driving?
Unfortunately, the 4R100 automatic could be a little tougher and these trucks are also plagued with factory tranny coolers that run a little on the small side. The ’99 to ’03 Fords with the 7.3 are fine for daily driving.
What is a 4R100 bypass tube?
From 1999-2003 the Ford 7.3L Automatic Transmission (4R100) had an external cooler bypass tube that redirected transmission fluid from the pump output back to the return line of the transmission. The bypassing of the cooler was supposed to happen until the fluid reached operating temps.