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Originally Posted by huey286
I have replaced the purge valve/solenoid on top of cannister, old one was sticking. Did some checking for/with vacuums, I can pull vacuum in tank with hand vac pump hooked to vent hose to tank. pumpes a few times, then unscrewed gas cap and heard hiss. And I get about 20 Hg vav at bottom of purge valve, so now know it's working right. But cannot detect vacuum in cannister, so it can't pull any vacuum in tank, rather just pulls in fresh air in through bottom of cannister. should I be able to get vacuum built up in cannister, and how much? don't know what's in these except air filter and charcoal. Any check valve, etc, that would allow vacuum build-up to create vacuum in tank? Not on this '91. Thanks for any help. After replacing purge solenoid, ran well for a day, now detecting slight return of problem.  |
After replacing purge valve/solenoid,on top of cannister, I believe stumbling has ceased, so far anyway. But yesterday again it died while coasting down slight grade to stop sign, about 30 mph, in OD, so guess engine was near idle speed, (no tach). Slip into neutral, and starts right up, before stopping for sign. Considering all the parts I've replaced, (origional thread), do you have any clue what could be causing this? Thanks again