89 chevy blazer spout connector located

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.

there is a spout connector flat square gray in color located in the area of the distributor of lying on the intake taped to the wiring harness.there is a two wire plug(called the spout) that has a flat cap that is removable.with the engine running pull the cap out of the spout and with your timing light attached check the timing marks and ensure it is timed correctly.if not loosen the distributor hold down bolt and move the distributor until the timing is set.turn off the engine reconnect the spout cap and ensure the check light is off.

I disagree with blood has nothing to do with injectors or fuel pump in 99% of all cases of this problem and is a very costly mistake to replace those things only to end up with only a $15 egr problem.

It is usually a faulty/bad EGR valve which is a very commonly known thing when it comes to s10's they were notorious for stalling and hesitation issues due to bad egr's from 89-94.

EGR(top)IAC(3bottom views).EGR will be on the intake,IAC will be on the throttle body.

transmission trouble?

how to replace a tailgate switch for a 1989 chevy silverado blazer

Carbon blocking the EGR movement and EGR passage tube.

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Check for

vacuum leaks on intake manifold,

the air tube between the air filter.

intake manifold vacuum hose.

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clean throttle plate with Berryman carburator cleaner

SEE sample picture HERE
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Also remove carbon built up behind the EGR valve and the EGR passage tube.

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Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.

More un-metered air (leaks) will lean out the fuel mixture.

Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.

At idle,just spray and listen for the RPM surge.

The in-rush of carb clearer will increase the RPM on the motor.

Record the problem spot(s) and address it later.

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EGR carbon built up require 2+ hours to clean from start to finish.

You will need a new EGR base gasket before your start.

Locate and remove the EGR valve after the vehicle is cool down.

Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.

Remove the EGR valve.

Inspect the location of the carbon built-up inside the valve and the EGR passage tube.

SOAK these areas with WD-40 spary.

You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.

RE-SOAK the carbon and let it sit for over-night will also help.

One the last round,pass a shop vacuum of the EGR valve and the passage pipe.

Install the new EGR gasket and connectors.

Allow the vehicle to warm up outdoor to burn up any remaining WD-40.


Take it for a test drive.


Please rate my answer if it's useful to you.


Cheers,

Mustgo

It's not worth doing all that conversion, buy the time you spend the time and money to convert the 89 4.3 to work on the 98 blazer, it would be cheaper to install a 98 vortec rebuild. The 89 4.3 have a TBI fuel injection system and the ecm on the 98 will not work and the bad news is that the ecm on the 98 also controls the transmission shift points and the 89 will not, so even if you swap the ecm to have the 89 4.3 engine work. the transmission will not shift. Sorry for the bad news but it would be cheaper to replace the 98 engine with the years of 1996 to 2001. Good luck and hope this helps. 

Stuck closed. You can't free these up. Gotta buy a new one.

look at the drivers side rear of the engine next to trans