Join Date: Dec 2001
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EGR valve on 16V motors -- diagnosis questions?
The "check engine light" keeps illuminating on my '96 Tracker. I checked and the motor is still there ... but the code indicates an "error" with the EGR system. I'd like to remove and clean the EGR valve but it's mounted at the rear of the motor next to the firewall. I think I can get wrenches on it and the EGR pipe. A new valve is $200-something !!!
Anyone with experience removing, cleaning or replacing the valve? I've already checked -- the diaphram moves when it's cold. I haven't checked it while it's hot because it get's a little too warm -- it appears to move if I use a long screwdriver as a probe, though. There's one vaccum hose attached to the valve that appears to be intact.
The light comes on when it's colder out (50ish or less) and seems to come on more frequently when it's moist out. I reset the light and everything is fine, then, usually when I let off the gas while travelling, it relights. Any ideas? It codes the same all the time. Last winter, I left it on the whole time and come spring, reset it and it stayed off until the cold weather.
Thanks for any suggestions, advice, pointers .....