Just thought I would share my latest transmission replacement. I own a 2004 Crown Victoria Police Interceptor.
Currently my rig has 400k miles. My first post on here (a few months ago) I uploaded pictures of all the latest engine work which was a full Ford Racing timing chain kit and a brand new ATI Super Damper. I also rebuilt the axles myself and upgraded to 3.55 Ford Racing Trac-Lok.
That said, about a month ago, my 2nd transmission failed on me in the same way the first original transmission failed in that all gears worked and the car was driveavble but the first gear would slip very badly. I believe now that the 4r70W is good to 220k and then it takes a dump.
So I got right to work on the 3rd transmission replacement. I jumped on a major deal of a lifetime, an already pulled transmission from a near mint condition 2004 Lincoln Town car at the junkyard. I spent 450$ for the transmission.
I decided while the good used transmission was out I opened up the valve body and installed a new BorgWarner EPC solenoid, a Superior Tuff plate, a new Sonnax overdrive pin and a Sonnax main pressure regulator valve. I also installed new check balls and a new input and output shaft seal. 2-3 accumulator piston was replaced also.
I also bought a new Ford OEM flexplate, a rebuilt Precision of New Hampton torque converter and new ARP bolts for the flexplate.
Fortunately, I live very close to one of the best transmission shops in the area and I had them do the swap for me. While the transmission was out I had them replace the rear main seal also as I had a nasty oil leak.
My goodness!! Without question my car runs better than ever!! Even the guys at the transmission shop were amazed at how well the car runs with such high mileage. The owner of the shop use to race Mustangs so he knows.
I personally believe the new EPC solenoid and new flexplate was the game changer.
Acceleration is just crisp and high speed freeway (80mph) the car has very little vibration and just simply asks to go faster.
Also, daily I have been checking my engine oil and the engine oil on the dipstick hasn't moved at all. That was the last leak I had and now everything around my oil pan is bone dry.
These little 4.6 Ford engines are amazing. My plans now are the Trickflow heads and long tube headers. That's all she needs now to push my car from a fun car to a fast and exciting car to drive.
I will also be using Mobil 1 ATF now. It exceeds Mercon V specs. Admittedly I had been using Super Tech Mercon V but even though I can't prove it the cheap price must come at some kind of cost.
As far as pictures, all the pictures show the good used unit except for the transmission facing the camera where you can clearly see the black oil leak where the torque converter would be. The main seal oil leak was so bad the flex plate flung oil everywhere.
Currently my rig has 400k miles. My first post on here (a few months ago) I uploaded pictures of all the latest engine work which was a full Ford Racing timing chain kit and a brand new ATI Super Damper. I also rebuilt the axles myself and upgraded to 3.55 Ford Racing Trac-Lok.
That said, about a month ago, my 2nd transmission failed on me in the same way the first original transmission failed in that all gears worked and the car was driveavble but the first gear would slip very badly. I believe now that the 4r70W is good to 220k and then it takes a dump.
So I got right to work on the 3rd transmission replacement. I jumped on a major deal of a lifetime, an already pulled transmission from a near mint condition 2004 Lincoln Town car at the junkyard. I spent 450$ for the transmission.
I decided while the good used transmission was out I opened up the valve body and installed a new BorgWarner EPC solenoid, a Superior Tuff plate, a new Sonnax overdrive pin and a Sonnax main pressure regulator valve. I also installed new check balls and a new input and output shaft seal. 2-3 accumulator piston was replaced also.
I also bought a new Ford OEM flexplate, a rebuilt Precision of New Hampton torque converter and new ARP bolts for the flexplate.
Fortunately, I live very close to one of the best transmission shops in the area and I had them do the swap for me. While the transmission was out I had them replace the rear main seal also as I had a nasty oil leak.
My goodness!! Without question my car runs better than ever!! Even the guys at the transmission shop were amazed at how well the car runs with such high mileage. The owner of the shop use to race Mustangs so he knows.
I personally believe the new EPC solenoid and new flexplate was the game changer.
Acceleration is just crisp and high speed freeway (80mph) the car has very little vibration and just simply asks to go faster.
Also, daily I have been checking my engine oil and the engine oil on the dipstick hasn't moved at all. That was the last leak I had and now everything around my oil pan is bone dry.
These little 4.6 Ford engines are amazing. My plans now are the Trickflow heads and long tube headers. That's all she needs now to push my car from a fun car to a fast and exciting car to drive.
I will also be using Mobil 1 ATF now. It exceeds Mercon V specs. Admittedly I had been using Super Tech Mercon V but even though I can't prove it the cheap price must come at some kind of cost.
As far as pictures, all the pictures show the good used unit except for the transmission facing the camera where you can clearly see the black oil leak where the torque converter would be. The main seal oil leak was so bad the flex plate flung oil everywhere.
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