Question about 1994 Chevrolet S-10 Blazer

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Where is the egr located on a 1994 chevrolet s10 blazer 4.3 Vortec? Usually the egr valve is easy to see. Why can't I see it on the blazer? Thanks Jeff

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It is beneath the air intake connected to the upper intake, that's probably why you can't see it. The manufacturers don't make things easy.

Posted on Mar 10, 2009

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I dont know which direction to put the egr valve back on my 94 s10 blazer 4.3 liter vortec engine


the best way to tell is to find the metal hose that screws on and ajust side accordongly

Apr 07, 2013 | 1994 Chevrolet S-10 Blazer

2 Answers

Where is the egr valve located on 1994 chevy s-10 blazer 4.3 vortec


The egr valve should be located in the front of the intake manifold by the thermostat housing and alternator. It should be an electronic egr with one electrical connector.

Jun 19, 2011 | 1994 Chevrolet S-10 Blazer

1 Answer

1993 S10 Blazer with a Vortec Enginer V6 4.3L. Changed the Injector Assembly, Plinum Gasket, Plugs, O2 Sensor, Catalytic Converter. Still won't pass emissions test. What am I missing?


The problemis usually related to a EVAP problem. Such as a Vaccuum leak,bad EGR valve.The most common problem for these trucks is the EVAP canister in the rear of the truck or the vac lines going to or from it also the EGR valve gets clogged or stuck. If you get the truck scanned it should give a code then you will know where to look.

Apr 26, 2011 | 1994 Chevrolet S-10 Blazer

1 Answer

My 1994 s10 blazer was runing fine then started missing and surging now when try starting it turns over fine one time then like out of time will start then die


the one possible problem is the egr valve. If your blazer has the Vortec 4.3, the valve is located on the front of the intake manifold. You must remove the intake rubber boot on the throttle body to see it better. It's very possible that there is chunks of carbon holding the valve open. I recommend cleaning the egr valve ( carb. cleaner works great ) and replacing the Egr gasket with a screened gasket. This will take care of it stalling and surging.

Feb 18, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

I have a 1994 chevy blazer 4.3 vortec it is displaying fault codes 32,35,45,82 can you tell me what thay mean?


32 is baro sensor or egr valve/35 isi.a.c idle air control/45 is rich exhaust probably faulty O2 sensor in exhaust pipe/82 isign fault or ecm module or transmission solenoid(open or short circuit condition)

Oct 02, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

S10 Blazer 4.3 to a 350 FI


If you live in a state with smog license requirements your wasting your time, the engine has to meet EPA requirements for the year vehicle was manufactured your car is considered a clunker good luck getting it smogged. And it is no big deal to change. 350 is almost identical to 4.3 just some variations.

Aug 20, 2009 | 1994 Chevrolet S-10 Blazer

3 Answers

I have a chevy blazer 94 S10 still quit on the road.


How is it running before it quits onyou. This could be the culprit of an egr valve. How many miles on thevehicle. The egr seems to die on a certain mileage pattern. Also youcould start by cleaning the egr valve before replacing it. This couldvery well help the situation, but this is just a guess. Hope thishelps!!

Apr 30, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

My 94 s10 4.3 vortec was running very rough


Hello;
Make sure the distributor wires are hooked up and making a goodconnection at the base of the distributor. Also make sure the coil wire is fully in the socket. Make sure no wires got pinched for the relays. Hope this helps;
Thanks;
Rich
RPM Northwest

Feb 04, 2009 | 1994 Chevrolet S-10 Blazer

1 Answer

My 94 s10 4.3 vortec was running very rough


I hope this helps, I have had this problem 1 other time.
The EGR valve you bought was a negative and it calls for a positive. Or visa/ verse. If that is the case, it will not start. There are 2 different EGR's for 1994, CFI & TBI, both are the type of injection and are not interchangable on the EGR valves.

Jan 14, 2009 | 1994 Chevrolet S-10 Blazer

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