91 S10, 4.3, 2WD Vacuum Leak??

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wrye

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Joined
Dec 25, 2022
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Location
lake havasu city, AZ
91 S10, 4.3, 2WD
After sitting for an hour or so, engine starts, but doesn't want to keep running. After about 5 minutes of short pedal pumping it settles down and runs OK.
It's been getting worse over time. I did have problems getting the AC flaps to work, but that seems to have disappeared. Or, at least when it's running OK.
It does idle a little rough.
Ideas??
Thx, Jim
 
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