I have a 2000 Dodge Neon i just changed the timing belt because it broke on me on the freeway i put a new one on an i lined up all the marks with each other for the timing but engine wont start. If i hold the gas down while i turn the key it will start but sounds really ruff an wont stay on as soon as i let it go it turns off i need help with this fast this is my only car i have school an have to pick my son up in the morning i would appreciate any help

 

Did you change your timing belt yourself? if not take it back to your mechanic! If it's not starting it could be a few things. Either when you first broke your timing belt you could have bent your valves. or whoever did the timing belt didn't do it right. make sure your battery terminals are nice and tight.

 

i guarantee you have some bent valves if it broke at freeway speed.
These ARE interference motors
so unless you pulled the head youve only done half the job.
you can onfirm this with a compression gague

 

can u plz give me a step by step on what to do as far as checking the valves an replacing them thanks a lot for replying to me so fast

 

You can get a new head off of a junkyard car. You have to make sure the pistons are fine though.

 

so it would be cheaper to replace the heads then replace the valves

 

and what year heads can i look for

 

get a cheapo campression gauge
remove a spark plug and thread in gauge
crank engine a few times check for pressure 90-130psi is ok any less thats the cylinders with the bent valves
remove head
another test when heads off and all valves are closed u can flip head upside down and fill combustion chambers with varsol or gas and see what ones wont hold liquid therfore valves arent closed
change valves on what ever cylinders you found failed test
install head
go race some hondas
the end

if your gonna junkyard a head i believe anything 2000+ except R/T and SRT-4
but i would think this is a more costly route than just replace a few valves

 

thanks bro first thing in the morning ima do jus that.and if its a valve can u give me step by step to go about taking it out an machineing or anything else this is my first time taking apart heads ive worked on alot of cars but never once worked on a car i had to change them many engines but not heads thanks again for your speedy responses an ill try to keep u posted

 

If you don't have the tools to change valves and such, I'm still thinking just unbolting the head and replacing it is going to be easier. I'm not thinking a junkyard head is going to be more then replacing individual valves? A head is probably like $30-$40. Hell, a whole engine is about $200.