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2000 s10 sputters and backfires at startup

 
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kris29 kris29
New User | Posts: 2 | Joined: 07/05
Posted: 08/01/05
10:33 AM

my 2000 chevy s10 sputters and every once in a while back fires at startup , it sputters every single time you floor it in reverse or forward and it sits there sputtering, just at startup i have had the timing checked fuel system checked tune up pcv etc, i'm lost and don't know where to start has 62,021 miles i hate to get rid of it for this help help help  

pauto pauto
User | Posts: 218 | Joined: 05/05
Posted: 08/01/05
04:10 PM

What engine?  

kris29 kris29
New User | Posts: 2 | Joined: 07/05
Posted: 08/02/05
04:56 PM

4.3 v6 vortec  

pauto pauto
User | Posts: 218 | Joined: 05/05
Posted: 08/02/05
06:02 PM

Well without a scanner you are kinda hurt, here are a few of common problems I see..
Dist. cap, dist. drive gear, fuel injector, fuel supply block w/ reg, EGR valve stuck open, bad  ECM, fuel pump....the list can be long with a 4.3 vortec. Get a good shop to diag. problem then if you want to make repair yourself.  

RACEDEMON1981 RACEDEMON1981
New User | Posts: 2 | Joined: 09/05
Posted: 09/21/05
11:59 PM

KRIS29 I HAVE THE SAME PROBLEM + TROBLE STARTING AFTER START UP IT  RUNS VERY SLUGISH AND IF YOU GOT ON THE GASS TOO SOON IT WOULD BACKFIRE UP THROUGH INTAKE DID ALL STUFF YOU DID TO FIX IT WITH NO LUCK IT FINALY GOT SO IT WOULD NOT START AT ALL SOOO DID YOU FIND OUT WHAT WAS THE PROBLEM            ALSO DID YOU HAVE THAT NEW TIMING CHAIN+ TENSIONER IN STALLED YET BECAUSE GM HAD A BAD DESIGEN IF NOT GO TO DEALER AND ASK ABOUT IT BEFORE IT IS TOO LATE IT COST ME $2200 TO GET DONE BECAUSE OF MILAGE  

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