Question about 2008 Toyota RAV4
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Posted on Jan 02, 2017
SOURCE: I have a 2001 Toyota
Okay, the first test would be to start engine and put vacuum to egr valve so it opens the engine should drop in idle and may stall out, this test will tell you that the valve works and passages are clear but if the engine doesnt drop in idle then you may have a bad valve or block passage, if this is an electric egr then this is hard to test some of these without a scan tool, what you can check is the passage by removing the valve and then starting the engine and it will rev up and then use finger there will be two passages, one for exhaust that you will here and the other if you put finger over should be vacuum if you have both then i would look at valve. the valve contains the postion sensor as part of the valve,if it vacuum lets go back after the first test above you will now need to test the selinoid, this is computer controlled and allows vac to open the valve, these go bad often and is mostly a common problem, you will need to remove vac line that goes to valve, the other line should have vac with engine running.check it to make sure it does. if not check lines. next you will need a test light, remove the connector to solenoid and test for power and ground. you will have one of the two, the computer will send power or ground to open, you need to find out which is lacking, next is to start engine and apply power or ground whatever its lacking and vacuum should come out of the port to egr hose you removed, if no vac then the soleniod is the problem, make sure when checking connector you unplug it and test then plug in and applie what is no there. good day.
Posted on Aug 17, 2011
you have a leak in one of your fuel lines . but its not be a outward leak its sucking air .first look at all of the steel lines. if no problem found go to all the rubber lines you are sure to find the problem
Posted on Jan 25, 2009
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on Feb 04, 2010 | Mazda 323 Cars & Trucks
Exhaust gas recirculation (EGR) system - insufficient flow detected
Causes: Hose leak/blockage, basic setting not carried out (if applicable), wiring, EGR valve, EGR solenoid, ECM
Your EGR valve should be on top of the engine in the front between the intake manifold and the pulleys. It looks something like this:
First, make sure the vacuum hose is good and run it down to where it connects to the intake manifold to check for any leaks. If that's good and you want to get your hands dirty, take the valve off and see if it's clogged. clean it and see if you can actuate it with vacuum (put a vacuum hose on it, ****, and see if it will open. Also, look to see if there is gunk in the line and intake where it connects. Clean out anything you can with carb cleaner.
If you can get it unclogged and the valve is working, put the valve back on with a new gasket, else buy a new one ($40 at autozone :o( ). If you solve the issue, the engine light should clear after a couple hours of driving. OK?
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