The IAC (Idle Air Control) is located in the base of the throttle body.
On the Vortec the computer does it all.
Owners manual, positive.
No it does not.
no the heads are diffrent
I would like to know if my 2002 chevy blazer with a stock 4.3 vortec pull 2000 lbs ?
Chevy blazer '78
Drivers side of engine, between the #3 and #5 spark plug.
The temp sensor for the ECM (engine control module) is next to the thermostat housing.
where the map sensor on 98 blazer?
there are 3 O2 sensors on the 4.3 Vortec V6 Blazer ( I have a 99 as well) 1 is on each exhaust downpipe forward of the catalytic converter, the 3rd is just aft of the converter.
It is bolted to the side of the timing cover right behind the harmonic balancer. That is the bottom pulley on the front of the engine.
My Blazer 4.3L vortec holds about 4.5 - 5 quarts