Need help to reduce engine hesitation whilst abrupt acceleration on Daihatsu Applause 1991 Carburettor engine



How could I help to eliminate engine hesitation during abrupt acceleration?

Last December I was driving to work with fuel running low in my tank when at one point in time I managed to drive over a "POT HOLE" and the engine started to jerk and perform badly. Until then, as I continued driving to the nearest station I refuelled the engine seemed to be recovering engine power was being restored. I visited mechanics a number of times to clean the carburettor and tank but it seems that on abrupt acceleration or when the engine is still cold, unfortunately the engine hesitates to perform well. Some other thing that I noticed was that as soon as the rev counter reaches the three thousand mark the engine suddenly gives a significant power increase. Please note that the vehicle has no fitted turbo's because this could deviate from the answers I need.

Also, I took it to a garage where I performed a comuterised test of the engine but it seems that the power balance is poor when testing the cylinders individually but relative compression on each cylinder is registered at 100%.

If any one could give me clues of what could be the answer please post me any relevant material.

May I thank you in advance for the feedback posted.

Karl Bonnici.


same problem

hello there yesterday my 4x4 started to do the same thing if anyone could realy help us with this we both would be very very very greatful also no turbo and is doing the same as this please please please if anyone can help would be a great help will keep eyes open and see if anything i do helps looking at chainging the points and plugs on mine to see if this will help will also change all the leads but again please please please HELP US Help

Re: same problem


I tried several things out including changing the high tension leads, spark plugs, cleaned the carburettor and tried to spray the carb cleaner in the carb whilst reving the engine but to no avail...

Can anybody help us please...

Many thanks in advance.



Terios hesitant on acceleration

I have a 1999 Terios.It is hesitant accelerating until it reaches about 4000 revs.The other thing i noticed is some times it idles very slow and the engine shakes a bit.There is 110 thousand miles on it.When i accelerate it seems like it is running like a car with the manual choke on too much then it clears again once it reaches 4000.It has just passed the Irish National car test today with no faults emissions were fine and given a clean bill of health for two years.
I hope some one can help me fix this problem

john christopher