My 2005 Toyota RAV4 won't stay in gear

My 2005 Toyota RAV4 will not stay in gear and the motor just revs. Can you flush the automatic transaxle with petrol and refill with fluid?

Answered by CarsGuide

16 January 2024

David Morley

Flushing a transmission is a practice that mechanics around the world just can't agree on in terms of its benefits. Either way, it would be pretty dangerous to do it with something as flammable as petrol. Also, unlike transmission fluid, petrol is not a lubricant so internal damage would possibly occur if you ran the car with only petrol in the transmission.

Most transmission flushing is done by using fresh automatic transmission fluid (ATF) which displaces most of the old ATF. A fluid change is the other service option, but this will usually only replace the ATF in the transmission's pan. A flush, meanwhile, will replace the stuff in the pan as well as in the torque converter and the transmission lines.

Your problem, however, sounds more like a lack of fluid in the first place. The inability of an automatic transmission to select gears and/or produce any forward movement is often down to depleted ATF rather than dirty or old fluid. Check the fluid level on the transmission's dipstick and, if it's low, add some more. The job then is to work out where the ATF is going missing, because the transmission is a sealed system that shouldn't need topping up. You may have a leak somewhere. And definitely check this first before spending lots of money on repairs when a quick ATF top-up will bring the car back to full health.

Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.

Comments

Have a new question for the CarsGuide team?

More than 9,000 questions asked and answered.

Ask now

Complete guide to Toyota RAV4 2005

Reviews, price, specs and more

Reviews

Family
Family focused reviews and advice for everything family car related.
Adventure
Off-road for beginners and the experienced, plus camper trailers, caravans and motorhomes
Tradies
Utes, commercial vehicles and tow tests

Compare cars
We make it easy to compare design, practicality, value and more
Used cars
Buying used? Here's what to look out for and buy smart
Owner reviews
Your thoughts could drive you to more than just your next destination 🚗💬

Buying guides

Our experts pick the top models
- SUV
- Ute
- Hybrid
- Hatchback
- Electric
- Sedan
- Wagon
- Coupe
- People mover
- Convertible
- Commerical