Originally Posted by nthhigst
Hello and thanks to all for making this site happen. my 1999 corolla lx with 108k miles will not start from one day to the next,prior to this the car ran excellent. Thus far i have tested all aspects of the fuel system from pump to injectors i tested the entire ignition system everything relating to fuel and spark fall within values acording to what is stated in the manual.Of course i could not test the fuel volume but there is no problem with fuel delivery. Everytime i rotate the crank manually the pistons are correct and TDC lines up when and where it is supposed to, however when i do a crank vacuum test the needle does not move. if the chain "jumped" a tooth wont the car start but run very poorly? will a compression test determine if chain is stretched? even though removing the valve cover is relatively easy i don't want to remove it yet, also i tested the crank position sensor and the map sensor and they are good.Please any suggestions would be very appreciated as this is my only car. please pardon the grammatical errors my lap top keyboard is in need of repair.
Has any work been done on this car recently? Is there a remote start/security system installed?
How did you test the fuel system? How did you test the fuel injectors?
Anyway.... Do a Compression test... Period.... Find out what is going on....If you have properly tested all other systems, it leaves very little else....
Don't yet be concerned if your chain "jumped" a tooth... the chances of that are very remote, unless some human gets in there and starts working past his/her experience level....