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How to solve overheating automatic gearbox. Warning light comes on after a short hill climb and revs lock and then suddenly release and then go back to normal

Automatic lock up when driving can reset it by switching off and starting again.

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I suspect you have almost ruined the transmission. Have you been driving very hard or overloaded? Have the fluid and filter changed. IF you notice a lot of metal fines in the filter, you are in need of a transmission rebuild.

Posted on Dec 12, 2014

Testimonial: "This is only occasional and not all the time. The car has been serviced regularly by BMW Dealership before I got it and since that time it has only covered 10000 miles so I assume that the oil and filter have been changed. There is no way of checking to see if there is any metal swarf in the oil as there is no dipstick.The car has only covered 55000 miles but I have been putting some oil and fuel additive which seemed to have solved it for a period of time."

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What causes Soltice to rev up and down shift when climbing hill but loose speed


That is the way gears in cars work. When you go up hill, the car needs more gas, so you put your foot down, kick down comes into play and the gearbox chooses one gear lower, for more engine revs and lower speed you get more torque to climb the hill.

Get the car tuned up, you might have failing sensors or ignition problems causing a general loss of power that is needing kick down on hills.

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My mazda 1989 b2200 doesn't want to climb hills and it's automatic


does it feel like the engine wants to rev but it won't go or is it bogging up the hill?

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My jackaroo 3.5 petrol has just started struggling to climb the hill on the way home. Even though the engine revs are normal, the powere isn't getting to the wheels. I have it serviced, changed the pl


Could be your automatic gearbox clutches worn out! Time for a second-hand exchange gearbox, or a rebuild of the clutch section of the gearbox.

Apr 01, 2014 | 2003 Holden Jackaroo

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VW 2013 Golf Automatic stays in 1st gear when driving uphill. Have to pull over after hill, stop, park and then go for engine to autocorrect. VW service center mechanic says this is how it's supposed to be...


There is no problem with the revs going to 3 or 6. The revs need to climb so you have enough power to climb the hill (if the car upshifts under heavy load it may stall). But are you saying that the only way you can get it to shift out of first is to turn off the car? if so, then that is obviously not supposed to happen. It should shift shortly after you start driving down hill.

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Hesitating when going up hill


if your engine idles in neutral, when was yourgearbox serviced? Automatic gearbox vacuum hose split? Check allrubber hoses going to transmission gearbox, squeeze them between thumb and forefinger, get a service

Dec 20, 2012 | 1995 Ford Bronco

2 Answers

I have toyota axio g grade 2007 december car.what does it mean S & B in gear system.


The short answer:

S is for low speeds with quick pickup.
S is not economical. Thats why the eco light is off.

Use B when you're climbing down steep hills and needs to slow down without overheating the brakes.


The long answer:
  • Brake (B)A mode selectable on some Toyota models. In non-hybrid cars, this mode lets the engine do compression braking, also known as engine braking, typically when encountering a steep downhill. Instead of engaging the brakes, the engine in a non-hybrid car switches to a lower gear and slows down the spinning tires. The engine holds the car back, instead of the brakes slowing it down. For hybrid cars, this mode converts the electric motor into a generator for the battery. It is not the same as downshifting in a non-hybrid car, but it has the same effect in slowing the car without using the brakes. GM called this HR (hill retarder) and GR (grade retarder) in the 1950s.


S has 2 possibilities

  • Second (2 or S)This mode limits the transmission to the first two gear ratios, or locks the transmission in second gear on Ford, Kia, and Honda models. This can be used to drive in adverse conditions such as snow and ice, as well as climbing or going down hills in the winter time. Some vehicles will automatically shift up out of second gear in this mode if a certain RPM range is reached in order to prevent engine damage. Although traditionally considered second gear, there are other names used. Chrysler models with a three-speed automatic since the late 1980s have called this gear 3 while using the traditional names for Drive and Low.
  • S or SportThis is commonly described as 'Sport mode'. It operates in an identical manner as 'D' mode, except that the upshifts change much higher up the engine's rev range. This has the effect on maximising all the available engine output, and therefore enhances the performance of the vehicle, particularly during acceleration. This mode will also downchange much higher up the rev range compared to 'D' mode, maximising the effects of engine braking. This mode will have a detrimental effect on fuel economy. Hyundai has a Norm/Power switch next to the gearshift for this purpose on the Tiburon. GM also used S to indicate a "super" mode, being the same as the 2 position on a Chrysler, shifting between only first and second gears.


Dont use B or S for general driving as both are very low on fuel efficiency.

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1 Answer

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diesel engines have loads of pulling power(towing/loaded)but you need to use the gears to keep the revs at peak torque.1st is a crawler gear(very low ratio).put car in 3rd going down steep hills saves the gearbox overheating.....

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There may be a detent cable on the throttle,on the throttle body.If there is,it will be adjustable.There will be a release button,where the throttle case mounts to the throttle body.Push this release all the way in,and move the throttle, full throttle,and release the throttle,then release the button.If there is not a cable,then there may be a separate switch.It may be bad,or it could be adjustable.The throttle position switch is on the throttle,opposite side of where the throttle cable is fastened.It may be adjustable.

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1 Answer

I have a 300 tdi discovery 1996 with automatic gearbox. As I drive on the flat the car runs fine. when i try to go up any hill or really put my foot down the engine seems to choke itself up and warning...


check your motor mounts, do this by opening the hood and pushing the car back and letting it rock, if the motor moves more than an inch either way, your motor mounts are bad.

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