unmetered air to throttlebody

jyro

Lifer

Join Date: Jun 2001

Posts: 6463
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#1

unmetered air to throttlebody

10-28-2013, 11:37 AM

sometimes rough idle, timing knock under load, mileage off
91 ranger 4.0
found it when I was cleaning my IAC, I sprayed carb cleaner in the IAC port, it came out the bottom of the inlet air tube
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airtube.JPG (47.6 KB, 17 views)

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