Q: Cd4e new pump and rod. Pressure builds 30sec then total loss.

asked by on

2002 Ford Escape. Had cd4e trans pump lock up twisting pump shaft rod during commute to work at 50mph... Towed home and I replaced pump and pump rod which had snapped. Drove it 40 miles then it acted like it.was slipping some then I lost fluid. Engine light came on. Towed it home again. Flushed atf and ..new fluid, Now it will engage in all gears but only for a few seconds then lose all pressure. I shut it off, park it and about 15 min later start it with good pressure in all gears ...then loss. I think pump initially seized due to use of Mercon V that was not changed and old fluid broke down causing wear on pump internals...fluid at initial change was real gritty feeling. Any advice would help, its my daily driver.

My car has 150000 miles.
My car has an automatic transmission.

If the transmission fluid was gritty when it first drained, the fluid when the pump shaft snapped off is not a good sign. The pump most likely bound up due to this metal that came through the system. When you flushed out the fluid, it does not clear the intake filter for fluid and it sounds like you are loosing pressure due to no flow of fluid through the filter. If filter is clogged, then try and see what type of metal it is clogged with to get idea if the internal transmission has a failed part. If you want to have this fixed, a certified technician from YourMechanic can come to your car’s location to diagnose your slipping issue and let you know what needs repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Cd4e new pump and rod. Pressure builds 30sec then total loss.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How does the Roll Stability Control™ system work?

Your vehicle offers several different control systems to make driving safer in a very wide range of conditions. One of those is the Roll Stability Control™ (RSC) system. RSC is designed to help enhance stability, which is necessary because of...

Q: Car losing gas mileage and not much power

Hello there, thank you for asking about your 1989 Buick Reatta. Vehicles lose both mileage and power over time - especially after 27 years! The only way to combat this is by keeping up on your maintenance and repairs. A...

Q: Buzzing noise inside dash 2002 Dodge Dakota

Hi there - several possibilities here for a buzzing sound, as this is not an uncommon issue. Quite possibly the auto shutdown relay or the fuel pump relay are buzzing due to burned contacts. There are also instances where the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.