After power washing engine, Engine will not accelerate, the EGR valve melted, starts and idles eventually will die.
SOURCE: idle air control
The Idle Air valve is connected to the throtle body by two metal screws. I got it fixed by cleaning and lubricating it. You do have to remove the wiring clip. There is no idle control except for this device. I have noticed that I had to do it twice to completly fix it. Also check the egr valve.
SOURCE: 2002 Mazda Tribute, Check Engine light came on and
Stop in at autozone or similar parts store & get free code scan, then see which way to go from there. Cheaper & faster than guessing.
SOURCE: engine malfunction
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
SOURCE: 2003 Mazda Tribute will start, idle rough for a
check the fuel filter air filter and vacuume lines if they all good make sure the spark plugs are making a bright blue spark
SOURCE: 2000 mazda 626 check engine light went on . code
probley not egr valve it probley egr control solenoid or wiring
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