egr problems
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egr problems
ok i just put my 87 f150 back together and dint think to lable the vacuum and its idleing at about 2500....and ill unhook the the iac and it will go down to like 600. but i unhooked the vac from the tree on the intake that went to the to egr which i dont think is right and the idle is back to where it should be
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Joined: Jun 2006
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From: Ottawa, Ontario
Vacuum is vacuum so it doesn't matter where on the intake you connect the EVR. The high idle was likely cause by the fact the EGR valve was being held open by manifold vacuum, it should be closed at idle.
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ok well i hooked it up to the evr and then to the egr and it still does the same.. idles really high in till i unplug the iac are take the vacumm hose off for the evr and its not clogger are nothing so maybe a bad evr??
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and i fail to say when i took the egr pipe off it was packed full of carbon so maybe the egr is bad but before it was unable to pass though and now that it is clear i have this problem
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