1999 4.3 vortec has fire but will not start. what could be wrong?

1999 4.3 vortec has fire but will not start. what could be wrong? 4 Answers

Getting 4.3 vortec to start 1 Answer

Replaced lower intake gasket, so had to pull the distributor obviously, and now I'm running into a problem where it's not starting we did mark it and it's lined up with the marks. And now it sounds...

I have a 1999 Chevy Blazer, 4x4, 4.3 vortec. We have changed the coil pack, fuel filter, distributor cap and button, the crank shaft sensor, cam sensor and plug wires as well as the ignition control module. We coming to a stop sign it will stall and sometimes when just sitting still. Sometimes it will start right back up and other times it takes several tries. I also have the oxygen sensor on order and it should be here tomorrow. Fuel pressure tested perfectly. No black smoke, no smell of rotten eggs or the cat glowing red. The only code that comes up is PO420. 4 Answers

I have a 1999 Chevy Blazer, 4x4, 4.3 vortec. We have changed the coil pack, fuel filter, distributor cap and button, the crank shaft sensor, cam sensor and plug wires as well as the ignition control m...

1999 chevy blazer will not start i did a full tune up and change the fuel pump still will not start up all it does is crank i was told it could be the computer i got one put it in still will not start 1 Answer

I put one i had from a 1996 blazer and start up and runs but it runs like crap and my dash bored looks like a Christmas tree

4.3 vortec 1 Answer

Seen a blue prints many years ago for the 4.3 bored and honed to put out 501 horse . Anyone know where to find such blueprints that I know exist just cant remember where or what magazine I seen it...