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Re: 1990 Suburban dies intermittently
With no codes at all its going to be tough to find. What condition is the throttle body in? With as old as it is it could very well be a worn out throttle body. Replacements are available. Also just because a part is new doesn't mean its any good. I would lean toward the IAC myself because the symptoms your describing lean toward a bad IAC. Do you have access to a known good part?
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.
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