Question about 2000 Chevrolet Tracker
My 2000 Chevy Tracker just started posting the P0400 "EGR Valve Malfunction" code today. Lowest price I can find for the valve is $360 and that's gonna hurt. Do I need to replace the valve or is there another way I could solve the problem without replacement? Also, is there anything other than the valve itself that could cause this code to come up?
I'd like to save money by doing it myself. I would appreciate any feedback on this problem.
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Posted on Jan 02, 2017
You need to check the passages from the egr valve to the intake to see if there is excessive carbon buildup thereby blocking the passage to the intake. The principle is that when the test for the code runs it is to determine if the egr system is operating correctly. It opens the egr valve to lean out the fuel mixture an so determine if the system is operating correctly. If the code is for electrical operation of the valve it will be an electrical issue
Posted on Aug 14, 2009
SOURCE: I got the code p0400 1.
first take the egr valve off then get some carb cleaner spray it into the egr valve ports let sit 30-60min then take a small flat head clean any carbon left over in it. then check the vaccume lines to it they to might be plugged you can take a small wire or push pin and stick it in the ports to unplug it.
Posted on Sep 06, 2008
SOURCE: no vacuum to egr valve
there is an EGR vacuum solenoid somwhere that controls on/off vacuum to actuate the valve. i am not to sure of the location, but follow the vacuum line back from the egr until you find a device that looks like an electrical check valve for vacuum. that is a possibilty. but then again i am a ford,chrysler guy and am just giving you an answer based on my understanding of the functuality of a vacuum egr system
Posted on Jan 15, 2009
Take off your EGR valve and clean it out with carb cleaner also
grease tyhe little screw thing in it,,, u will c what i mean if u take it apart. carbon builds up in the chamber. it is located at the back left side of your engine and is a bit of a pain to take off. this should save u the cost except for the cleaner and labor. i had the same problem cheapest i found was 90$ on ebay.
Posted on Jan 17, 2009
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