Skip the auto shop - Our mechanics make house calls

Q: Transmission slip

asked by on

What could be causing my engine to slip despite the oil levels being correct? It also seems to slip more when it's cold. I just got the vehicle, so I'm not sure when the oil has last been changed.

The transmission slipping is not due to the fluid unless it has leaked out. The slipping is due to the forward clutches inside the transmission being worn out and not being able to grip any more. Your transmission’s front pump of the transmission is not producing enough pressure to lock up the clutches.

Take out the dipstick and smell the oil. If it is dark in color and smells burnt, then your transmission will need to be overhauled by a transmission mechanic. If the fluid smells okay, then your EPC or electronic pressure control solenoid inside the transmission pan may have a broken bracket and backed out. The EPC solenoid should be replaced with the bracket that holds it. The pressure test would show the loss of pressure and the need to drop the transmission pan to check the solenoid. If you want to have this properly diagnosed before making any repairs, one of our certified mechanics can visit your home or office to inspect your car’s transmission slip and determine what repair is needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Advice on buying an 'O6 Lexus with a rebuilt transmission

It depends on whose shop it is and what kind of work they do. That said, I've read an article the other day that 33 % of automatic transmission rebuilds done in the North America had to be done two...

Q: Vehicle has a coolant leak

Hi there. Your coolant can be leaking from a number of places. If it is leaking fast enough, it will cause the engine to overheat. The source of the leak needs to be found and repaired. Check to see if...

Q: How many gallons of fuel does it take to crank my truck after running out of gas?

You need to have someone cycle the key on and off and on again while you open gas cap and listen to see if the fuel pump is turning on. You may have burned out the fuel pump and it...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...