Re: '89 350 tbi 5 speed stalling and surging idle
Thanks for all the help guys.
I ended up pricing an IAC and felt it warranted just going ahead and replacing it. Unfortunately it runs exactly the same.
The coolant sensor was replaced within the last 6 to 9 months I believe, but it sure sounds like the problem. When I start it in the morning it does idle, but doesn't seem like it is on any high step or anything.
Stalling still there at restart. I will check out the coolant sensor test and give that a go. I also found a NAPA that will give the module a test. I know it isn't a definative test, but it's worth a shot. I am sure once I pull it I will at least get a good look at any burns it may have.
Thanks again for all the expertise!! I will get back with the results.
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