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I would say so. The EGR operates directly with manifold vaccum so when they sick open they can kill the idle. The car will run fine without it hooked up as it only functions during warm-up for emissions.

You may all so have carbon biulded up under it.It happen to me on a 73 Nova

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โˆ™ 2015-07-16 18:21:09
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Q: If the hose is pulled from the EGR valve on a 1987 El Camino and the hesitation and surging problem disappears is this proof that the EGR valve needs to be replaced?
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