zubain

After reading the very first line i could make out that you were in wrong hands.

""""""""""""""""""""so i checked with one of mechanic he said it my be a timer belt problem so he tried to adjust sumthing on the timer.""""""""""""""""""

Timing belt adjustment IS THE LAST THING TO BE DONE. And for fooling people few big head mechanic use that tactics exactly and then play around with car and keep making money.

Dump that mechanic at first, PLEASE. And go to some good garage like dynatrade, technical garage, AAA etc to get the proper fix of this isse. There is nothing much to clean the silencer, its advisable to change it as you will be changing only mufler and not whole silencer, which would cost less than 500.

Timing belt is due to change at 100k so check with ur friend if he has changed or not. May be coz of timing belt is due to change then adjusting wont help but instead you have to change it.

Good luck.

Well don't be so sure that it cant be gearbox, in some case gear box blow off like this too.

Most likely i doubt the solenoid or some other part below gearbox responsible for shift is sleeping. I am not 100% sure mechanic need to diagnose before making any conclusion.

In the radiator hose that comes out of engine jacket.

Overdrive light must have come from button pressed for OD. And check engine light is serious concern you need to get your car computer check by good guys who can tell you why chk engine light have come up. Dont delay.

Its a gear box jerk and its pretty common in Mazda gear boxes if you were driving with lot of race track driver style.

Change the gear oil and filter, see if helps. If not you need a gear rebuild and that is expensive around 2k dhs approx.

You wont harm anything, anything is better than nothing in radiator. So go ahead and mix it and make a cocktail . Its ok.

the fuel is not reaching the engine.it will only run if the fuel is externally introduced to intake.

is this the problem with the fuel pump,fuel filter or the throttle body

any advice is welcome