hi i am in sydney
6 month before i bougt grandeur its a 2001 model.
when i go on hilly area car run with very slow speed. i dont know what happen to it? is there anybody face this problem before my car just finish its 100000k
there is one more problem sometimes it stuck on 3rd gear while running.
please help because some people told me that its a gearbox problem.
thank you

this is difficult to tell without diagnostic equipment, however the most likely causes are the gearbox input and/or output speed sensors and also possibly the throttle position sensor. have you had the engine check light come on?

BTW welcome to the forums :00000732:

yes I had engine check light come on, its always when I start my car and the worst thing is my car don't have pick up at all. It dosent change gears properly.
help me please

it needs to go on a diagonstic test at your dealer to determine the exact cause, but as l said in my previous post it's likely to be the sensors

thank you my friend I love u
really to say I was scared because if the problem with gear box it will cost me 1600$
but with sensors may be 300$ I am happy now can u please tell me is there any relation of pick up and sensors I am sorry but I don't know. Thank u
u make me happy

hi omkar,

it looks like you have a speed sensor issue, it's the same thing with my 2000 trajet, if your engine is a 2.7 ltr. V6, it is adviseable you go to a reputable dealer, (hyundai), they will do a diagnostics to your grandeur and it will give you the result whether it is the speed sensor (input or output), or other sensors not working properly. my trajet gets stuck on third and they found out that the input speed sensor was the fault. don't go to paramatta hyundai, they are the worst rip-offs of all dealers. :w00t: they have no idea what they are talking about...
by the way, i'm in sydney too, (west).

thank you my friend as per ur advice today i went to the peter warren hyundai servicing centre liverpool they ask me to change input speed sensor and air flow sensor it runs good now like a bullet anyway it cost me 850$ all together.
i ask them how much $ to change the timing belt they told me 890$ it unbeliveabal do you know somebody who make it cheaper.
thanks for all of your help
omkar