Q: Fluid leak between engine and transmission possible slave cylinder

asked by on

I have a 2010 Ford Mustang GT 5 speed manual transmission V8 4.6 Litre, I had the valve covers and timing chain cover gaskets replaced to remove front of car oil leak but now there's a puddle of fluid under the car which seems to be between the engine and transmission , I have 2 diagnoses from 2 different shops , one says it's the rear main seal the other transmission shop says it's the slave cylinder for the clutch, the car will not shift into 1-2 or reverse gears while cold but after few minutes of city driving it will shift normal , until it warms up I have to Use 3rd gear assume the slave cylinder / clutch needs replacement but is the slave cylinder failure causing the fluid leak I see between the engine and transmission? I have brand new synthetic manual transmission fluid and brand new synthetic engine oil I cannot differentiate between the two fluids leaking , I know failed slave cylinder leak fluid that's confused with rear main oil seal leak sometimes , what is leaking ?

My car has 28798 miles.

First check the fluid level in the clutch master cylinder to see if it is getting low. If it is low on fluid then you have a slave cylinder leaking. If the fluid does not go low then you do not have a slave cylinder leaking. To find out if it is the engine rear main or the front transmission seal leaking then I would suggest adding oil leaking detection dye to the engine oil and not the transmission. The dye will show up under a black light. This way you can see if the engine rear main is leaking if the dye in the oil shows up in a few days.

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. Fluid leak between engine and transmission possible slave cylinder

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: 2005 Ford Escape dies, runs up to 5 seconds and dies again

First pressure test the fuel pump. A weak fuel pump would do exactly that and on that old Escape, 11 years old, there is no sensor on the fuel, so the computer has no idea what the fuel pressure is....

Q: Clutch pedal not connected to cylinder rod.

Hi! That is a Jeep issue I have not seen with my own eyes. It makes me think that there may be a misalignment between the pedal and the pushrod. Possibly a worn bushing on the pedal allowing it to...

Q: Could car jump the curb after being left in park with a faulty transmission

It sounds like you have transmission issues. Police cars are sometimes driven very hard and as a result, the transmissions take a lot of abuse. The transmission has a mechanical device to lock the driveshaft when it's in Park....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.