Replaced still getting egr valve code
Try unhooking the battery for 1 or 2 min then let sit for 8hrs start turn on all heat front and back run at highway speed for about 10min then city run for 10min let idle 10 min this will reset the comp and codes should go away
SOURCE: bad egr valve
You can try cleaning it. Go to your local parts store and buy a can of brake cleaner. Remove the EGR valve and spray it into the valve and let it set 8 hours. Pour out the cleaner and clean the carbon off with a wire brush. Reinstall the valve and see if that helps. If not, you will have to buy a new one and it will not cost $316 if you DIY.
SOURCE: how to replace EGR valve on 99 Chevy Tracker
Take off your EGR valve and clean it out with carb cleaner also
grease tyhe little screw thing in it,,, u will c what i mean if u take it apart. carbon builds up in the chamber. it is located at the back left side of your engine and is a bit of a pain to take off. this should save u the cost except for the cleaner and labor. i had the same problem cheapest i found was 90$ on ebay.
SOURCE: p0405 code.. changed egr valve and cleaned passage
The truck has two egr vales unless it's a 4 cylinder, then it has one, if it say your slipping and it's automatic change the filter and oil in the transmission and add Lucas transmission fluid conditioner to the tyranny. If the EGR valve is still giving a code then it means something in the egr system is not working, and one item that comes to mind is the purge canister valve on the evaporative control canister. To test find the purge valve and crimp it off with a pair of vise grips to close the vent then drive it. If it runs good then you have found your problem. Also low vacuum can cause the transmission not to shift correctly as it needs a vac. input for it to shift. Check your transmission fluid if it is brown and sort of smells like onions then the fluid is burnt and will cause all types of erratic behavior. And since I took the time to write this I would like to get some feed back as I am about to stop doing this.
SOURCE: I cant find the egr valve.
Its right in front of the engine as soon as u open the hood On the left side. It has one electric cable connected on top and a pipe with the diameter of a dime at the lower side running to a lower section of the engine.
SOURCE: 1998 Chevy Truck 1/2 ton 350 engine. Trouble codes
404 is exhaust gas recirculation circuit, and 405 is exhaust gas recirculation sensor circuit low. EGR sensor or ground?
In fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.
& DPFE voltage. There should be a noticable difference in RPM's with the EGR open441 views
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