5R55E Missing First Gear

[high_horse_ford]

I've been working on a missing first gear problem and was looking for some help. I lost first gear. If I take off in second the rest of the gears shift like normal. No trouble codes. Dropped pan shift solenoid ohms out and is clicking like it should. All other solenoid ohms out fine What would be the next step in troubleshooting this problem? Thanks

 

[BrooklynBay]

Do you have any problems with reverse? The rear band, and servo control reverse, and first gear. It's called the low/reverse servo, and band. Sometimes the end of the servo gets chipped. Drop the pan, and the square cover. Remove the 4 bolts, and pull out the servo.

 

[high_horse_ford]

Yes reverse works fine.

 

[Glacier991]

Have you checked your shift linkage ? The range sensor could be damaged or out of adjustment. The next idea is to pull the VB and look for a gasket problem.

 

[wow97]

i have a 1997 ford explorer xl 4.0 e.f.i v-6 ohv/cologne sohc v-6 with a 5r55e i have a problem 1st gear slipping i change the filter the pan was 100% clean no metal shaving

 

[BrooklynBay]

Check the tip of the low/reverse servo to see if it's chipped. How is reverse?

 

[wow97]

it take couple seconds for resevrse to kick in and when i put in R IT IS BANG IT SLIP IN 1ST GEAR I HAVE LET OFF GAS PEDAL THEN 1ST KICK IN THEN GO TO STOP SIGN I FEEL THE TORQUE CONVERTER IS GOING FUNNY I THINKING IT IS TRYING LET GO I FEEL IT IS STUCK OR SOMETHING I HAVE 157,900 MILES

 

[BrooklynBay]

Check the fluid level, valve body gasket, and the low/reverse servo seals.

 

[wow97]

i check the fluid level is perfect how do i do Check the valve body gasket, and the low/reverse servo seals.

 

[BrooklynBay]

You have to remove the servo to see if the servo seals are flat or deteriorated. The gaskets will flake apart on the sides. Check the valve body bolts to see if they are loose. The first area to get loose is near the EPC solenoid.

 

[wow97]

i changed the automatic transmission filter about last weekend i find nothing in the pan clean as whistle i said thank god knock on wood i check and valve body bolts i told my dad it was automatic transmission valve body gasket i got so mad when he didnot get me the valve body gasket he bought my the filter the filter $14.99 at advanced auto parts i refuse to but a brand new suv because i restore my 1997 ford explorer xl 4.0 ohv.cologne sohc v-6 i change my power disturtor box and headlight harness everything work all i want is my tranny to stop slipping in 1st gear rest gear are find i wanna go out to the movies and go spent time with my girlfriend again i dont want to drive my 1993 ford mustang lx convertible v-8 5.0 H.O with 5-speed i cant put to much mileage because it is expect mileage only drive 5,000 miles because it is a classic mustang now im back to square one again