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05-09-2014, 10:28 PM | #1 |
Registered User
Join Date: Nov 2007
Location: NLR, AR
Posts: 1,387
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Re: 1990 Suburban dies intermittently
I will say pull the TB off, and clean the IAC and its passages. Be careful not to spin the tip of the IAC while its out.
A stuck open IAC will cause stalling and whistle. Open EGR can cause the O2 sensor to read rich and cause codes(possible whistle as well). code42, you also have whats called a pickup coil in the distrib, its basically a bunch of wound up copper wire. I have heard of them going bad... not often though. |
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code 42, dies, surge, whistle |
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