Chevy 2000 blazer when should i change my timing chain?

We're both gears replaced also

Here's a link John to a repair guide on replacing your timing chain. SAVE 20 GET BONUS 10 GIFT CARD ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE

Are you saying that after changing the chain is it doing this? If so, you probably have the crankshaft 180 degrees out of sync with the cam. If not, the chain tensioner may have broken and the chain jumped time.

what about the temperature sensor which is the one according to message given to ECU get the correct quantity of fuel ?

there are many things that can cause this, fuel pump or filter, fueses, or even your key. your key has a transponder in it that lets the blazer know you have the right key and not just some screw driver. if you have too much stuff on your key chain it will interefere with this, or if you had to have new keys made. check with your local chevy dealer if you have a concern of this or need to prgram a new key

the timing spec is 0degrees at idle, also heres adiagram for timing chain, check oil preasure switch connection and wiring to control module.hope this helps.

dirty fuel filter or faulty pump....just a guess...

Chevy blazers dont have timing belts they have chains. The chains get noisey on some engines that are run hard or the oil changes are missed. Sometimes these engines live their whole life if not run too hard without changing the chain. Noise lower gas mileage uneven idel hesate to accerate. These are all things that happen over 100 thou miles. Many go way farther with no problems

if it does not start after you check your distributor cap that means you took the car out of timing, when you put the distributor cap back on you did not put it is the correct position, now you need a mechanic to get the timing of the engine

u have a timing chain not a belt.