Just changed timing belt and water pump car starts fine but has poor acceleration.does anyone know why?

Sounds like water pump! If it was last changed 60k when timing belt done could need doing! If not timing belt tensioner! When timing belt is done it is good practice to replace water pump and belt tensioners at the same time!

Those belts are usually supposed to be changed every 60,000 miles. Behind the timing belt cover is your water pump. They can make noise when going out, but usually a timing belt makes no noise, just breaks. If you ever have to change the water pump, it is always suggested to change the timing belt as well. VS. If your timing belt gets stretched, it will make a bit of a noise, but your car will start running poorly at the same time. Hope I was helpful

Is it possible that the cam shaft is one tooth out. This can happen as you tension the belt. This is probably your problem if the car was running fine before and this was the only work you did. Remember to spin the engine round for two revolutions using a spanner on the crankshaft pulley with the engine switched off. If the engine locks up or it is stiffer than it should be at any point, you have a valve touching the piston so do not start it, go back and try and get the marks to line up before trying again. This will require you to loosen the timing belt again.

make the trip,timing belts mostly break under hard acceleration,or someone hard on their vehicle,you sound like neither.

Pls Check it With Good Engineer. I think it should be incorrect timing or Valve Clearance.

I have a very loud squealing noise in my 2003 mazda mvp engine when i accelerate. We removed the belts which would eliminate belts as the problem. And that's that it. If anyone has any info please let me know.
Thank you

I would go to auto zone and get a diagram and the timing belt and do it yourself and the water pump (no it does not have to be changed everytime the timing belt is changed but if the car has over 60,000miles then it is best to change them both) it is not that hard especially if the car is not out of time just make sure you disconnect the negative side of the battery

how do you know when the timing belt has broken? how do you know when the water pump is bad? will the engine start?

if the car was fine before you replaced the timming belt then it sounds like its still 1 tooth out either 1 forward or 1 back.
hope that helps
cheers alvin

The Throttle Body Needs Basic Settings To Be Carried Out