94 Blazer 4.3

Hayden · 11-14-2006, 04:42 PM

94 Blazer 4.3. I get a code 32 which is egr. My Question. Will a bad egr cause the engine to Idle bad and stall. any help is greatly appreciated on this matter. Autozone says there are two types of egr for this vehicle. 1 costs $119.00 and the other $205.00 I'm not sure which it is till I get it out.

jay996 · 11-14-2006, 05:23 PM

First try and clean the egr valve and the mounting point of the intake manifold,it is a very common problem for the valve and mount point
to get plugged up with carbon.It is a very easy thing to check,I believe it is two 9/16 bolts,don't hold me to that!!!Its been a while! Check the valve for carbon deposits.

mudseeker · 11-14-2006, 05:32 PM

yes the egr valve will make the engine act like that. that price is very high. gm didn't cange body styles till 95 which i think is when they went to the vortec engine, so unless you some how have a vortec engine then the egr valve should only cost around 50 dollars. i know because i had a 89 4.3. i would snap a pic and take it with you, more than likely the autozoner hit a 5 instead of 4 in the year. if they happen to be right i would try cleaning it and saving me a hundred bucks. good luck.

gmtech · 11-14-2006, 05:39 PM

The diference is the 8th digit in your vin number if it is a z it has a vacuum egr valve which is cheaper and if you have a w it is an electronic egr more expensive and those styles get carbon debis stuck in them pretty comon can be cleaned out and reinstalled its mounted right below the throttlebody.

bradrhale · 11-14-2006, 07:38 PM

gmtech, is that true on most year models?? ive never known that

gmtech · 11-14-2006, 07:43 PM

Yeh they started using the electronic egr valves in 94/95 on up and they have very little spring tension to close them so carbon gets stuck in them causing a vacuum leak so you get a rough idle and hard brake pedal mostly in the 4.3 w engines

11-14-2006, 04:42 PM	#1
Hayden Senior Member Join Date: May 2006 Location: Bay City,Michigan Posts: 378	94 Blazer 4.3 94 Blazer 4.3. I get a code 32 which is egr. My Question. Will a bad egr cause the engine to Idle bad and stall. any help is greatly appreciated on this matter. Autozone says there are two types of egr for this vehicle. 1 costs $119.00 and the other $205.00 I'm not sure which it is till I get it out. __________________ There Is No Replacement For Displacement

11-14-2006, 05:32 PM	#3
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,317	yes the egr valve will make the engine act like that. that price is very high. gm didn't cange body styles till 95 which i think is when they went to the vortec engine, so unless you some how have a vortec engine then the egr valve should only cost around 50 dollars. i know because i had a 89 4.3. i would snap a pic and take it with you, more than likely the autozoner hit a 5 instead of 4 in the year. if they happen to be right i would try cleaning it and saving me a hundred bucks. good luck. __________________ i'd rather be hunting

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11-14-2006, 05:23 PM	#2
jay996 Full Member Join Date: Nov 2006 Posts: 44	First try and clean the egr valve and the mounting point of the intake manifold,it is a very common problem for the valve and mount point to get plugged up with carbon.It is a very easy thing to check,I believe it is two 9/16 bolts,don't hold me to that!!!Its been a while! Check the valve for carbon deposits.

11-14-2006, 05:39 PM	#4
gmtech Senior Member Join Date: Dec 2005 Location: farmville Va Posts: 348	The diference is the 8th digit in your vin number if it is a z it has a vacuum egr valve which is cheaper and if you have a w it is an electronic egr more expensive and those styles get carbon debis stuck in them pretty comon can be cleaned out and reinstalled its mounted right below the throttlebody.

11-14-2006, 07:38 PM	#5
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 7,831	gmtech, is that true on most year models?? ive never known that

11-14-2006, 07:43 PM	#6
gmtech Senior Member Join Date: Dec 2005 Location: farmville Va Posts: 348	Yeh they started using the electronic egr valves in 94/95 on up and they have very little spring tension to close them so carbon gets stuck in them causing a vacuum leak so you get a rough idle and hard brake pedal mostly in the 4.3 w engines