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Discussion Starter · #1 ·
So I'm on the freeway yesterday and I notice that my 4runner (86 22re) is continually pinging. 4th, 5th gear it doesn't matter-- non stop. I'm running on the same tank of gas as before when it didn't ping. It was really hot yesterday, could it have been the heat? Any ideas?
 

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Replace your EGR valve, it's either shot or plugged. Check the vacuum modulator too, just to make sure the EGR is getting the proper signal.

(You can test the EGR by taking the vacuum hose from your cruise control and hooking it on to the little tube coming off the top of the EGR valve, your engine should die when you do this if the EGR is working properly.)

[ 08-29-2001: Message edited by: Drew Persson ]
 
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